{"title":"Master Brake Cylinders \u0026 Parts","description":"Willys MB Ford GPW Jeep Master Brake Cylinders \u0026amp; Parts.","products":[{"product_id":"master-cylinder-boot-1941-1966-jeep-and-willys","title":"Master Cylinder Boot – OE Style Replacement – Willys Jeep \u0026 Truck (1941–1966)","description":"\u003cp data-end=\"245\" data-start=\"85\"\u003e\u003cstrong data-end=\"159\" data-start=\"85\"\u003eReplace your dry rotted or cracked boot with this master cylinder boot\u003c\/strong\u003e, designed to protect the pushrod and master cylinder from dirt, moisture, and debris.\u003c\/p\u003e\n\u003cp data-end=\"357\" data-start=\"247\"\u003eThis simple but critical component helps extend the life of your braking system and maintain proper operation.\u003c\/p\u003e\n\u003cp data-end=\"382\" data-start=\"359\"\u003e⚙️ \u003cstrong data-end=\"382\" data-start=\"362\"\u003eWhat’s Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"411\" data-start=\"383\"\u003e\n\u003cli data-end=\"411\" data-start=\"383\" data-section-id=\"w66dtc\"\u003e(1) Master cylinder boot\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"458\" data-start=\"413\"\u003e🔧 \u003cstrong data-end=\"458\" data-start=\"416\"\u003eWhy Replace Your Master Cylinder Boot?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"671\" data-start=\"459\"\u003e\n\u003cli data-end=\"512\" data-start=\"459\" data-section-id=\"1lyerdt\"\u003eOld boots crack, dry out, and allow contamination\u003c\/li\u003e\n\u003cli data-end=\"574\" data-start=\"513\" data-section-id=\"1e347lu\"\u003eProtects master cylinder internals from dirt and moisture\u003c\/li\u003e\n\u003cli data-end=\"625\" data-start=\"575\" data-section-id=\"1f6lt3v\"\u003eHelps maintain proper brake system performance\u003c\/li\u003e\n\u003cli data-end=\"671\" data-start=\"626\" data-section-id=\"ggptgh\"\u003eIdeal during brake service or restoration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"690\" data-start=\"673\"\u003e⚠️ \u003cstrong data-end=\"690\" data-start=\"676\"\u003eImportant:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"795\" data-start=\"691\"\u003e\n\u003cli data-end=\"754\" data-start=\"691\" data-section-id=\"1jsad7d\"\u003eDesigned for \u003cstrong data-end=\"752\" data-start=\"706\"\u003efactory-style master cylinder applications\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"795\" data-start=\"755\" data-section-id=\"11odb6u\"\u003eVerify compatibility before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"809\" data-start=\"797\"\u003e🚙 \u003cstrong data-end=\"809\" data-start=\"800\"\u003eFits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"1085\" data-start=\"810\"\u003e\n\u003cli data-end=\"844\" data-start=\"810\" data-section-id=\"13s8ha5\"\u003e1941–1945 Willys MB \u0026amp; Ford GPW\u003c\/li\u003e\n\u003cli data-end=\"869\" data-start=\"845\" data-section-id=\"rf1oft\"\u003e1946–1949 Jeep CJ-2A\u003c\/li\u003e\n\u003cli data-end=\"894\" data-start=\"870\" data-section-id=\"3j5l7g\"\u003e1949–1953 Jeep CJ-3A\u003c\/li\u003e\n\u003cli data-end=\"919\" data-start=\"895\" data-section-id=\"acxez4\"\u003e1953–1964 Jeep CJ-3B\u003c\/li\u003e\n\u003cli data-end=\"943\" data-start=\"920\" data-section-id=\"o448gg\"\u003e1955–1966 Jeep CJ-5\u003c\/li\u003e\n\u003cli data-end=\"968\" data-start=\"944\" data-section-id=\"5tr65n\"\u003e1950–1952 Willys M38\u003c\/li\u003e\n\u003cli data-end=\"995\" data-start=\"969\" data-section-id=\"sw543i\"\u003e1952–1966 Willys M38A1\u003c\/li\u003e\n\u003cli data-end=\"1022\" data-start=\"996\" data-section-id=\"1m4cys4\"\u003e1946–1964 Willys Truck\u003c\/li\u003e\n\u003cli data-end=\"1057\" data-start=\"1023\" data-section-id=\"iraoit\"\u003e1946–1964 Willys Station Wagon\u003c\/li\u003e\n\u003cli data-is-last-node=\"\" data-end=\"1085\" data-start=\"1058\" data-section-id=\"hpn8j1\"\u003e1948–1951 Willys Jeepster\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JeepsterMan","offers":[{"title":"Default Title","offer_id":42448761487597,"sku":"647283","price":7.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/5931\/3389\/products\/master-cylinder-boot-1941-1966-jeep-and-willys-976992.jpg?v=1762440595"},{"product_id":"master-cylinder-assembly-repair-kit-1941-1966-willys-and-jeep","title":"Master Cylinder Assembly Repair Kit, 1941-1966, Willys and Jeep","description":"\u003cp\u003eMaster Cylinder Repair Kit includes rubber boot (CJ, 2WD, 4WD) Fits: \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eJeep MB Willys (1941-1945).\u003c\/li\u003e\n\u003cli\u003eJeep CJ-2A (1945-1949).\u003c\/li\u003e\n\u003cli\u003eJeep CJ-3A (1948-1953).\u003c\/li\u003e\n\u003cli\u003eJeep CJ-3B (1953-1966) w\/ Single Reservoir Master Cylinder.\u003c\/li\u003e\n\u003cli\u003eJeep CJ-5 (1953-1966) w\/ Single Reservoir Master Cylinder.\u003c\/li\u003e\n\u003cli\u003eJeep CJ-6 (1953-1966) w\/ Single Reservoir Master Cylinder.\u003c\/li\u003e\n\u003cli\u003eJeep Jeepster (VJ) (1948-1950).\u003c\/li\u003e\n\u003cli\u003eJeep Pickup (1947-1965) without 6-230 engine.\u003c\/li\u003e\n\u003cli\u003eJeep Station Wagon (1948-1963).\u003c\/li\u003e\n\u003cli\u003eJeep Sedan Delivery (1946-1964).\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JeepsterMan","offers":[{"title":"Default Title","offer_id":42448785080557,"sku":"805654","price":39.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/5931\/3389\/products\/master-cylinder-assembly-repair-kit-1941-1966-willys-and-jeep-523805.jpg?v=1762440779"},{"product_id":"master-cylinder-push-rod-1941-1948-willys-jeep-mb-gpw-cj2a","title":"Master Cylinder Push Rod and Plunger, 1941-1948, Willys Jeep MB, GPW, CJ-2A","description":"\u003cp\u003eNew reproduction master cylinder push rod plunger. Push rod eye bolt and eyelet from brake pedal arm into master cylinder. Connects to the brake pedal linkage and presses into the back of the master cylinder. Alternate part number: 637599. Fits:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1941-1945 MB\u003c\/li\u003e\n\u003cli\u003e1941-1945 GPW\u003c\/li\u003e\n\u003cli\u003e1946-1948 Willys Jeep CJ-2A\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JeepsterMan","offers":[{"title":"Default Title","offer_id":42448844423405,"sku":"A183","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/5931\/3389\/products\/master-cylinder-push-rod-and-plunger-nos-1941-1948-willys-jeep-mb-gpw-cj-2a-663688.jpg?v=1762441191"},{"product_id":"master-cylinder-early-style-1941-1948-mb-cj-2a","title":"Master Cylinder, Early Style, 1941-1948 Willys and Jeep, MB, CJ-2A","description":"\u003cp\u003eBrake Master Cylinder; 1 Mating Hole Is Threaded and 1 Mating Hole Is Not Threaded; Center of Bolt Hole to Center of Bolt Hole is 3-1\/4″. Fits:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWillys MB \u0026amp; GPW (1941-1945)\u003c\/li\u003e\n\u003cli\u003eJeep CJ-2A (1945-1948); Up To Serial #215649\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JeepsterMan","offers":[{"title":"Default Title","offer_id":42448846979309,"sku":"A556","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/5931\/3389\/products\/master-cylinder-early-style-1941-1948-willys-and-jeep-mb-cj-2a-408060.jpg?v=1762441220"},{"product_id":"disc-brake-proportioning-valve-universal-1941-1986-willys-and-jeep-vehicles","title":"Disc Brake Proportioning Valve, Universal, 1941-1986, Willys and Jeep Vehicles","description":"Proportioning valve used for disc brakes. Adjustable proportioning valves are essentially pressure reducing valves and are often utilized in disc\/drum, disc\/disc and drum\/drum braking systems. The valve is used to control front-to-rear brake pressure bias and will work for all types of vehicles. Install this valve between the distribution block and the rear flex hose in the front to rear rigid brake line. Always use tube wrenches to tighten fittings properly. Final settings of this valve will depend on your particular vehicle, and individual preference.­\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cul\u003e\n\u003cli\u003eUniversal design, adjustable, black finish\u003c\/li\u003e\n\u003cli\u003eMaximum pressure regulation 300 psi.\u003c\/li\u003e\n\u003cli\u003eInlet port of valve: 1\/8 – 27 NPT\u003c\/li\u003e\n\u003cli\u003eStandard adapters: 3\/8” – 24 for 3\/16” line included\u003c\/li\u003e\n\u003cli\u003eMounting hole diameter: .250” (two)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JeepsterMan","offers":[{"title":"Default Title","offer_id":42448850911469,"sku":"APV1","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/5931\/3389\/products\/disc-brake-proportioning-valve-universal-1941-1986-willys-and-jeep-vehicles-650164.jpg?v=1762441266"},{"product_id":"dual-master-cylinder-conversion-kit-1941-1971-mb-gpw-cj-2a-cj-3a-cj-3b-cj","title":"Dual Reservoir Master Cylinder Conversion Kit – Disc\/Drum Upgrade – Willys Jeep 1941–1966","description":"\u003cp data-end=\"304\" data-start=\"119\"\u003e\u003cstrong data-end=\"206\" data-start=\"119\"\u003eUpgrade your braking system with this dual reservoir master cylinder conversion kit\u003c\/strong\u003e, designed to improve safety by converting from a \u003cstrong data-end=\"303\" data-start=\"256\"\u003esingle reservoir to a dual reservoir system\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"462\" data-start=\"306\"\u003eThis kit is ideal for use with \u003cstrong data-end=\"385\" data-start=\"337\"\u003edisc brake conversions or drum brake systems\u003c\/strong\u003e, providing added protection by separating the front and rear brake circuits.  Mad in USA\u003c\/p\u003e\n\u003cp data-end=\"487\" data-start=\"464\"\u003e⚙️ \u003cstrong data-end=\"487\" data-start=\"467\"\u003eWhat’s Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"745\" data-start=\"488\"\u003e\n\u003cli data-end=\"549\" data-start=\"488\" data-section-id=\"1nj5jeq\"\u003eDual reservoir master cylinder \u003cem data-end=\"547\" data-start=\"521\"\u003e(disc brake application)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"606\" data-start=\"550\" data-section-id=\"yn6ipd\"\u003eMounting bracket kit (high-strength steel, USA made)\u003c\/li\u003e\n\u003cli data-end=\"628\" data-start=\"607\" data-section-id=\"12cf57q\"\u003eMounting bolt kit\u003c\/li\u003e\n\u003cli data-end=\"665\" data-start=\"629\" data-section-id=\"nj5rhs\"\u003eProportioning valve with pigtail\u003c\/li\u003e\n\u003cli data-end=\"687\" data-start=\"666\" data-section-id=\"h7tx0k\"\u003eLinkage fasteners\u003c\/li\u003e\n\u003cli data-end=\"709\" data-start=\"688\" data-section-id=\"7cdt6p\"\u003eBench bleeder kit\u003c\/li\u003e\n\u003cli data-end=\"745\" data-start=\"710\" data-section-id=\"ygenbg\"\u003e\n\u003ca style=\"font-size: 0.875rem;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0628\/5931\/3389\/files\/CJ_Dual_Res_Instructions.pdf?v=1675791066\"\u003ePDF Instructions\u003c\/a\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv data-is-intersecting=\"true\" data-turn-id-container=\"request-69e6c88b-3d64-83ea-9397-18d9026fe948-23\" class=\"\"\u003e\n\u003csection data-turn=\"assistant\" data-scroll-anchor=\"false\" data-testid=\"conversation-turn-194\" data-turn-id-container=\"request-69e6c88b-3d64-83ea-9397-18d9026fe948-23\" data-turn-id=\"request-69e6c88b-3d64-83ea-9397-18d9026fe948-23\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" data-conversation-screenshot-content=\"\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-turn-start-message=\"true\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-3-instant\" dir=\"auto\" data-message-id=\"6ee80c7e-1bae-44be-ac6f-977180639410\" data-message-author-role=\"assistant\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp data-end=\"793\" data-start=\"747\"\u003e\u003cstrong data-end=\"793\" data-start=\"750\"\u003eWhy Upgrade to a Dual Reservoir System?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1004\" data-start=\"794\"\u003e\n\u003cli data-end=\"854\" data-start=\"794\" data-section-id=\"14b2yvc\"\u003eSeparates front and rear brake circuits for added safety\u003c\/li\u003e\n\u003cli data-end=\"894\" data-start=\"855\" data-section-id=\"cu9kj0\"\u003eReduces risk of total brake failure\u003c\/li\u003e\n\u003cli data-end=\"943\" data-start=\"895\" data-section-id=\"1yepcag\"\u003eImproves braking reliability and performance\u003c\/li\u003e\n\u003cli data-end=\"1004\" data-start=\"944\" data-section-id=\"1ffzyc1\"\u003eIdeal upgrade for disc brake conversions or restorations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1023\" data-start=\"1006\"\u003e⚠️ \u003cstrong data-end=\"1023\" data-start=\"1009\"\u003eImportant:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1299\" data-start=\"1024\"\u003e\n\u003cli data-end=\"1082\" data-start=\"1024\" data-section-id=\"1s1erff\"\u003e\n\u003cstrong data-end=\"1057\" data-start=\"1026\"\u003eNew brake lines must be run\u003c\/strong\u003e to the master cylinder\u003c\/li\u003e\n\u003cli data-end=\"1137\" data-start=\"1083\" data-section-id=\"qy0hb6\"\u003eDesigned primarily for \u003cstrong data-end=\"1135\" data-start=\"1108\"\u003edisc brake applications\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1189\" data-start=\"1138\" data-section-id=\"1sdnj1a\"\u003ePlease specify \u003cstrong data-end=\"1238\" data-start=\"1207\"\u003evehicle year and brake type\u003c\/strong\u003e when ordering\u003c\/li\u003e\n\u003cli data-end=\"1299\" data-start=\"1255\" data-section-id=\"z6202c\"\u003eVerify compatibility before installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1313\" data-start=\"1301\"\u003e🚙 \u003cstrong data-end=\"1313\" data-start=\"1304\"\u003eFits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"1511\" data-start=\"1314\"\u003e\n\u003cli data-end=\"1337\" data-start=\"1314\" data-section-id=\"1ovxpvo\"\u003e1941–1945 Willys MB\u003c\/li\u003e\n\u003cli data-end=\"1360\" data-start=\"1338\" data-section-id=\"185hoqo\"\u003e1941–1945 Ford GPW\u003c\/li\u003e\n\u003cli data-end=\"1385\" data-start=\"1361\" data-section-id=\"rf1oft\"\u003e1946–1949 Jeep CJ-2A\u003c\/li\u003e\n\u003cli data-end=\"1410\" data-start=\"1386\" data-section-id=\"3j5l7g\"\u003e1949–1953 Jeep CJ-3A\u003c\/li\u003e\n\u003cli data-end=\"1435\" data-start=\"1411\" data-section-id=\"acxez4\"\u003e1953–1964 Jeep CJ-3B\u003c\/li\u003e\n\u003cli data-end=\"1459\" data-start=\"1436\" data-section-id=\"o448gg\"\u003e1955–1966 Jeep CJ-5\u003c\/li\u003e\n\u003cli data-end=\"1484\" data-start=\"1460\" data-section-id=\"5tr65n\"\u003e1950–1952 Willys M38\u003c\/li\u003e\n\u003cli data-is-last-node=\"\" data-end=\"1511\" data-start=\"1485\" data-section-id=\"sw543i\"\u003e1952–1966 Willys M38A1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pointer-events-none -mt-px h-px translate-y-[calc(var(--scroll-root-safe-area-inset-bottom)-14*var(--spacing))]\" aria-hidden=\"true\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"JeepsterMan","offers":[{"title":"Default Title","offer_id":42448854253805,"sku":"CJMDIPREMIUM","price":389.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/5931\/3389\/files\/dual-master-cylinder-conversion-discdrum-premium-kit-1941-1971-willys-and-jeep-514052.jpg?v=1762441316"},{"product_id":"master-cylinder-heat-shield-willys-jeep-mb-gpw-and-cj-2a","title":"Master Cylinder Heat Shield – Early Style (Steel) – MB, GPW \u0026 Early CJ-2A (1941–1947)","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-69e6c88b-3d64-83ea-9397-18d9026fe948-22\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69e6c88b-3d64-83ea-9397-18d9026fe948-22\" data-turn-id-container=\"request-69e6c88b-3d64-83ea-9397-18d9026fe948-22\" data-testid=\"conversation-turn-192\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"67f1eba7-b508-49d0-bffa-82d4d1d3ab33\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-instant\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp data-start=\"93\" data-end=\"242\"\u003e\u003cstrong data-start=\"93\" data-end=\"166\"\u003eProtect your brake system with this steel master cylinder heat shield\u003c\/strong\u003e, designed to reduce heat exposure and help prevent brake fluid overheating.\u003c\/p\u003e\n\u003cp data-start=\"244\" data-end=\"408\"\u003eThis reproduction shield mounts just like the original and is designed for \u003cstrong data-start=\"319\" data-end=\"386\"\u003eearly style master cylinders with front threaded mounting holes\u003c\/strong\u003e—no drilling required.\u003c\/p\u003e\n\u003cp data-start=\"410\" data-end=\"433\"\u003e⚙️ \u003cstrong data-start=\"413\" data-end=\"433\"\u003eWhat’s Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"434\" data-end=\"475\"\u003e\n\u003cli data-section-id=\"idsx9m\" data-start=\"434\" data-end=\"475\"\u003e(1) Steel master cylinder heat shield\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"477\" data-end=\"517\"\u003e🔧 \u003cstrong data-start=\"480\" data-end=\"517\"\u003eWhy Replace or Add a Heat Shield?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"518\" data-end=\"716\"\u003e\n\u003cli data-section-id=\"bde4r6\" data-start=\"518\" data-end=\"568\"\u003eHelps prevent brake fluid overheating and fade\u003c\/li\u003e\n\u003cli data-section-id=\"1w0ntur\" data-start=\"569\" data-end=\"626\"\u003eProtects master cylinder from engine and exhaust heat\u003c\/li\u003e\n\u003cli data-section-id=\"93xw5n\" data-start=\"627\" data-end=\"664\"\u003eImproves brake system reliability\u003c\/li\u003e\n\u003cli data-section-id=\"1htde4q\" data-start=\"665\" data-end=\"716\"\u003eIdeal for restorations or preventative upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"718\" data-end=\"735\"\u003e⚠️ \u003cstrong data-start=\"721\" data-end=\"735\"\u003eImportant:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"736\" data-end=\"927\"\u003e\n\u003cli data-section-id=\"1ckixet\" data-start=\"736\" data-end=\"820\"\u003eDesigned for \u003cstrong data-start=\"751\" data-end=\"818\"\u003eearly style master cylinders with front threaded mounting holes\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1c4oz9g\" data-start=\"821\" data-end=\"879\"\u003eDirect bolt-on installation – \u003cstrong data-start=\"853\" data-end=\"877\"\u003eno drilling required\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1fb5vou\" data-start=\"880\" data-end=\"927\"\u003eVerify master cylinder type before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"929\" data-end=\"941\"\u003e🚙 \u003cstrong data-start=\"932\" data-end=\"941\"\u003eFits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"942\" data-end=\"1018\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"1ovxpvo\" data-start=\"942\" data-end=\"965\"\u003e1941–1945 Willys MB\u003c\/li\u003e\n\u003cli data-section-id=\"185hoqo\" data-start=\"966\" data-end=\"988\"\u003e1941–1945 Ford GPW\u003c\/li\u003e\n\u003cli data-section-id=\"13egmlf\" data-start=\"989\" data-end=\"1018\" data-is-last-node=\"\"\u003e1946–1947 Willys Jeep CJ-2A\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv aria-hidden=\"true\" class=\"pointer-events-none -mt-px h-px translate-y-[calc(var(--scroll-root-safe-area-inset-bottom)-14*var(--spacing))]\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"JeepsterMan","offers":[{"title":"Default Title","offer_id":42448860905709,"sku":"HSHIELD","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/5931\/3389\/products\/master-cylinder-heat-shield-1941-1947-willys-jeep-mb-gpw-and-cj-2a-870648.jpg?v=1762441406"},{"product_id":"shield-master-cylinder-w-o-m-mb-gpw-willys-jeep","title":"Master Cylinder Shield (1941-1945) MB\/GPW Willys Jeep","description":"\u003cp class=\"p1\" data-mce-fragment=\"1\"\u003eNew steel reproduction master cylinder shield. Fits:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1941-1945 MB\/GPW Willys Jeep\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MD Juan","offers":[{"title":"Default Title","offer_id":43038616977645,"sku":"MOP002","price":69.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/5931\/3389\/products\/master-cylinder-shield-1941-1945-mbgpw-willys-jeep-612659.webp?v=1762442406"},{"product_id":"shield-master-cylinder-m-gpw-1942-willys-jeep","title":"Master Cylinder Brake Shield (w\/ \"F\" mark) (1941-1945) Ford GPW","description":"\u003cp class=\"p1\" data-mce-fragment=\"1\"\u003eNew quality steel reproduction master cylinder brake shield. Comes stamped with Ford's iconic \"F\" mark. Fits:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1941-1945 Ford GPW \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MD Juan","offers":[{"title":"Default Title","offer_id":43038618648813,"sku":"MOP004","price":69.78,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/5931\/3389\/products\/master-cylinder-brake-shield-w-f-mark-1941-1945-ford-gpw-739610.webp?v=1762442408"},{"product_id":"dual-master-cylinder-conversion-disc-drum-basic-kit-1941-1971-willys-and-jeep","title":"Dual Master Cylinder Conversion, Disc\/Drum Basic Kit, 1941-1971 Willys and Jeep","description":"\u003cp\u003eUse this kit with our disc brake kit. This kit is an important safety upgrade that converts your braking system from a single reservoir to a dual reservoir system. This application can be used with disc or drum brakes. This basic kit includes a dual master cylinder for disc brakes, main frame bracket, bracket mounting kit, and mounting bolt kit. The brackets are high strength steel and made in the USA. \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0628\/5931\/3389\/files\/CJ_Dual_Res_Instructions.pdf?v=1675791066\"\u003ePDF Instructions\u003c\/a\u003e. Fits:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1941-1945 MB\u003c\/li\u003e\n\u003cli\u003e1941-1945 GPW\u003c\/li\u003e\n\u003cli\u003e1946-1949 CJ-2A\u003c\/li\u003e\n\u003cli\u003e1949-1953 CJ-3A\u003c\/li\u003e\n\u003cli\u003e1953-1964 CJ-3B\u003c\/li\u003e\n\u003cli\u003e1955-1966 CJ-5\u003c\/li\u003e\n\u003cli\u003e1950-1952 M38\u003c\/li\u003e\n\u003cli\u003e1952-1966 M38A1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNote: You will need to run new brake lines to this master cylinder. Please state the type and year of vehicle in the notes. Drum\/drum applications can be special ordered, please call. \u003c\/p\u003e","brand":"JeepsterMan","offers":[{"title":"Default Title","offer_id":44162824077549,"sku":"CJDRESBASIC","price":335.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/5931\/3389\/products\/dual-master-cylinder-conversion-discdrum-basic-kit-1941-1971-willys-and-jeep-832148.jpg?v=1762444606"},{"product_id":"master-cylinder-brake-bleeder-kit-1941-1986-willys-and-jeep-vehicles","title":"Master Cylinder Brake Bleeder Kit, 1941-1986, Willys and Jeep Vehicles","description":"\u003cp\u003eMaster cylinder brake bleeder kit. This kit allows you to bleed any master cylinder prior to installation. We recommend bleeding every master cylinder before installation. Includes to clear hose, fittings, and instructions. This will work on any master cylinder found in the Willys and Jeep vehicles.\u003c\/p\u003e","brand":"JeepsterMan","offers":[{"title":"Default Title","offer_id":44162858975469,"sku":"345","price":11.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/5931\/3389\/products\/master-cylinder-brake-bleeder-kit-1941-1986-willys-and-jeep-vehicles-173777.jpg?v=1762444607"},{"product_id":"master-cylinder-push-rod-nos-1941-1948-willys-jeep-mb-gpw-cj-2a","title":"Master Cylinder Push Rod, NOS, 1941-1965, All Willys and Jeep Vehicles","description":"\u003cp\u003eNew old stock master cylinder push rod for the frame mounted master cylinder. This push rod wears out at the tip or becomes very rusted. Your threaded rod with the eyeletted hole threads into this. These are NOS so they will have dust and dirt. Get these NOS parts while they last. Fits:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1941-1945 MB \u0026amp; GPW\u003c\/li\u003e\n\u003cli\u003e1946-1949 CJ-2A\u003c\/li\u003e\n\u003cli\u003e1948-1949 CJ-2A\u003c\/li\u003e\n\u003cli\u003e1949-1953 CJ-3A\u003c\/li\u003e\n\u003cli\u003e1953-1964 CJ-3B\u003c\/li\u003e\n\u003cli\u003e1955-1965 CJ-5 and CJ-6\u003c\/li\u003e\n\u003cli\u003e1950-1952 M38\u003c\/li\u003e\n\u003cli\u003e1952-1966 M38A1\u003c\/li\u003e\n\u003cli\u003e1948-1951 Willys Jeepster\u003c\/li\u003e\n\u003cli\u003e1946-1964 Willys Station Wagon\u003c\/li\u003e\n\u003cli\u003e1947-1964 Willys Pickup Truck\u003c\/li\u003e\n\u003cli\u003e1957-1964 FC-150 and FC-170\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JeepsterMan","offers":[{"title":"Default Title","offer_id":44317925376237,"sku":"647282","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/5931\/3389\/products\/master-cylinder-push-rod-nos-1941-1965-all-willys-and-jeep-vehicles-794673.jpg?v=1762444984"},{"product_id":"disc-brake-proportioning-valve-with-distribution-block-1941-1986-willys-and-jeep-vehicles","title":"Disc Brake Proportioning Valve with Distribution Block, 1941-1986, Willys and Jeep Vehicles","description":"\u003cp\u003eUniversal adjustable proportioning valve and distribution block all in one. Adjustable proportioning valves are essentially pressure reducing valves and are often utilized in disc\/drum, disc\/disc and drum\/drum braking systems. The valve is used to control front-to-rear brake pressure bias and will work for all types of vehicles.  Features a rotary adjustment to regulate rear brake pressure and help maintain correct brake bias between front and rear. Distribution block connects to master cylinder and distributes brake fluid to all four wheels. Includes five stainless steel fittings for 3\/16\" brake line and 3\/8-24 fittings. Light switch and wiring pigtail included. Will fit all Willys and Jeep vehicles with 3\/16\" lines. Designed for vehicles with disc brakes. \u003c\/p\u003e","brand":"JeepsterMan","offers":[{"title":"Default Title","offer_id":47408791060717,"sku":"PVC-B","price":157.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/5931\/3389\/files\/disc-brake-proportioning-valve-with-distribution-block-1941-1986-willys-and-jeep-vehicles-668578.jpg?v=1735527703"},{"product_id":"dual-master-cylinder-conversion-w-remote-reservoir-1941-1971-willys-and-jeep","title":"Dual Reservoir Master Cylinder Conversion w\/Remote Reservoir, 1948-1971, Willys and Jeep","description":"\u003cp\u003eCheckout this dual reservoir master cylinder conversion kit with remote reservoirs. This kit work with drum brakes and our disc brake conversions. This unit is a direct-fit replacement for the original single master cylinder, which used two through-bolts on the factory frame mount. Unlike current dual master cylinders on the market—many of which require extensive frame cutting and the removal of the factory bracket to install their bolt-on replacements—ours installs easily with no frame modifications needed. There's no bellhousing clearance issue, no more awkwardly filling the master cylinder from underneath, We've collaborated with top vintage Jeep enthusiasts to develop a sleek, easy-to-install design that’s not only user-friendly but also fully rebuildable. These were designed by Vintage Jeeper and tested by Vintage Jeeper.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0628\/5931\/3389\/files\/BRW405BD8A10289_001039.pdf?v=1773754684\" title=\"Dual Reservoir Installation\"\u003eInstallation Instructions\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eNote: This is meant to replace the 805223 later style master cylinder, not the A556. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDual Tandem Master Cylinder with a spade connector brake light switch preinstalled and 3\/16\" brake line connections\u003c\/li\u003e\n\u003cli\u003e2 Remote reservoir cups and lines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePainted Cast Iron Body Construction\u003c\/li\u003e\n\u003cli\u003eHardened Seal Pistons (NOT aluminum)\u003c\/li\u003e\n\u003cli\u003e3 Seals per Piston\u003c\/li\u003e\n\u003cli\u003eAll Fitting connections are sealed with Locktite Industrial Hydraulic sealer\u003c\/li\u003e\n\u003cli\u003eSpade terminal brake light switch\u003c\/li\u003e\n\u003cli\u003eChemical resistance clear reservoir lines\u003c\/li\u003e\n\u003cli\u003eUses the factory single master cylinder bolts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1941-1945 MB (with modification)\u003c\/li\u003e\n\u003cli\u003e1941-1945 GPW (with modification)\u003c\/li\u003e\n\u003cli\u003e1946-1948 Willys Jeep CJ-2A (with modification) Up To Serial #215649\u003c\/li\u003e\n\u003cli\u003e1948-1949 Willys Jeep CJ-2A (bolt on)\u003c\/li\u003e\n\u003cli\u003e1949-1953 Willys Jeep CJ-3A (bolt on)\u003c\/li\u003e\n\u003cli\u003e1953-1964 Willys Jeep CJ-3B (bolt on)\u003c\/li\u003e\n\u003cli\u003e1955-1966 Willys Jeep CJ-5 and CJ-6 (bolt on)\u003c\/li\u003e\n\u003cli\u003e1950-1952 M38 (bolt on)\u003c\/li\u003e\n\u003cli\u003e1952-1966 M38A1 (bolt on)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JeepsterMan","offers":[{"title":"Default Title","offer_id":48064025297133,"sku":"DUALRES","price":390.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/5931\/3389\/files\/dual-reservoir-master-cylinder-conversion-wremote-reservoir-1941-1971-willys-and-jeep-241875.png?v=1746611274"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/5931\/3389\/collections\/master-brake-cylinders-parts-127478.jpg?v=1742082657","url":"https:\/\/thejeepsterman.com\/fr\/collections\/willys-mb-ford-gpw-jeep-master-brake-cylinders-parts.oembed?page=2","provider":"The JeepsterMan","version":"1.0","type":"link"}