• Master Cylinder Fitting Bolt, 1941 - 1966, Willys and Jeep - The JeepsterMan
  • Master Cylinder Fitting Bolt Kit, Joe's Motor Pool, 1941 - 1966, Willys and Jeep - The JeepsterMan
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Joe's Motor Pool

Master Cylinder Outlet Fitting Bolt – OE Style – Willys Jeep & Military Models (1941–1966) Made by Joe’s Motor Pool

Master Cylinder Outlet Fitting Bolt – OE Style – Willys Jeep & Military Models (1941–1966) Made by Joe’s Motor Pool

Part #: 637605
$7.99
$11.03 USD $7.99 USD
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Eliminate leaks and restore proper brake system sealing with this high-quality outlet fitting bolt, manufactured from hardened steel using original drawings.

This premium reproduction is built to outperform lower-quality alternatives that are commonly known to leak.

⚙️ What’s Included:

  • (1) Master cylinder outlet fitting bolt

🔧 Why Replace Your Outlet Fitting Bolt?

  • Prevents brake fluid leaks at the master cylinder
  • Restores proper sealing and brake pressure
  • Hardened steel construction for durability
  • Accurate reproduction for reliable fit and function

⚠️ Important:

  • Designed to original specifications
  • Verify sealing surfaces and threads before installation
  • Recommended during brake system service or rebuild

🚙 Fits:

  • 1941–1945 Willys MB
  • 1941–1945 Ford GPW
  • 1946–1949 Willys Jeep CJ-2A
  • 1949–1953 Willys Jeep CJ-3A
  • 1953–1964 Willys Jeep CJ-3B
  • 1955–1966 Willys Jeep CJ-5
  • 1950–1952 Willys M38
  • 1952–1966 Willys M38A1
  • 1947–1964 Willys Pickup Truck
  • 1946–1964 Willys Station Wagon
  • 1948–1951 Willys VJ Jeepster

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Let customers speak for us

from 3836 reviews
Great Re-Build

Wow! Did an outstanding job on the re-build. Would highly reccomend! The Jeepster Man is the place to go for high quality parts!

David Urby
Carburetor, Rochester 2G, Rebuild Service, 1966-1971 Jeepster Commando, CJ-5, CJ-6
From Rome Italy

I Purchased many parts for a 1960 CJ,in two different Orders , Everything perfect and Fast Shipping , considering that I'm On the other site of the Globe.

Davide Rosari
Low Back Front Seat, Black, 1955-1986, Willys & Jeep CJ and Jeepster Commando
Mirror

Jamie and all the staff I have talked to have been friendly and answered all my questions all parts that I have ordered has been a five star good quality

Mike Wolfrum
Mirror, Rectangular, Metal, Driver Side, 1967-1973, Jeepster Commando and Commando
CJ2A Tub and body kit.

Very impressed with the quality. Looking forward to having it completed in Spring. Thank you for the easy transaction and quick delivery

Thor Bahl
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The unit bolted right on and lined up with the cable assembly side prefect and has just the right amount of windshield sweep. When the motor is turned off , the blades continue to the bottom of the windshield before motion stops. The motor , switch and wiring are top quality. .

Thomas Stipech
Electric Wiper Motor Conversion, 12 Volt, 1946-1964, Willys Jeepster, Station Wagon, Pickup Truck
Jeep CJ Tailgate Chains

Very happy.
I ordered these by phone, I had excellent customer service, they arrived quickly, and they were a better price than I found anywhere else.
I would highly recommend.

Avery Lanigan
Tailgate Chain and Cover Kit, 1946-1971, Willys and Jeep, Pickup Truck, CJ2A, CJ3A, CJ3B, CJ5
EXCELLENT Customer Service!!!

All of my questions were answered, and their Return Policy is VERY Accommodating to the Customer. Purchase your needs with confidence, and quality will prevail.

joe franken
Fuel Tank Hose Adapter, 1946-1964 Station Wagon and Jeepster
Disk breaks in a Willy’s!!!!

These are amazing!!! I have owned a few Jeeps but have never had one that disk breaks, the calipers are great and the rotors are heavy duty, if your in a Willy’s you need these!

Tim Lecolst
Willys and Jeep Disc Brake Conversion Kit, Dana 25, Dana 27, 1941-1971 Willys and Jeep

Very high quality. Thoughtful design. Will make the 1964 CJ stop much better and pass inspection. Will be buying more from Jeepsterman in the future.

J.S.
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Excellent

Great service, and honest staff.

Sam Hiasat Jr
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Great fulfillment

Thanks, Jeepsterman staff for your expertise. It is iffy finding the right parts for my 1973 Jeep CJ5, but you seem to have everythig I need. I will continue to use you as my #1 parts source.

Kyle Gomon
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Straight forward, great product

Matthew
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Excellent service and very fair pricing. Completely satisfied, staff knowledgeable about specific parts and applications

Greg Zahn
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Received in good order

Tub was well packed and protected and shipped very quickly!

Eugene Robinson
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