Main Bearing Set - Standard
Fits 41-71 Jeep & Willys with 4-134 engine

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Main Bearing Set - Standard
Fits 41-71 Jeep & Willys with 4-134 engine
New Complete Main Bearing Set in Standard

Replaces your burned out, scratched main bearings. Comes complete ready for install. Fits both flat head and overhead valve motor. Hightest quality guarantee.

4-134 engine

41-45 MB
41-45 GPW
46-49 CJ-2A
49-53 CJ-3A
53-64 CJ-3B
55-71 CJ-5
50-52 M38
52-66 M38A1
46-53 Truck
46-53 Station Wagon
48-51 Jeepster
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Availability: In stock

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Questions: I pulled the old bearings out of my f head jeep they are marked fm then L-010 I got a set of 010 bearings installed them (correctly) they are way to tight can barely turn it over whats up help
Question By: robert eves on Oct 6 2018 12:03 AM
I would double check your mechanics manual to make sure your tolerances are right. You can email too for help.
Answer By: Willys Jeep Parts Tech on Oct 8 2018 9:29 AM
Questions: Could the mains and rod bearings on the crank be reground to different sizes? I took the crank out and the mains are stamped at 0.10 and the rod bearings are stamped 0.20.
Question By: Henry on Oct 1 2014 12:00 AM
Yes, main bearing and rod bearing sizes can be different. They dont have any connection with one another.
Answer By: Willys Tech on Oct 2 2014 12:00 AM