Rear Main Bearing Cap Side Oil Seal Insert
Fits 41-71 Jeep & Willys with 4-134 engine

Part # 637790

New Replacement Rear Main Bearing Cap Side Oil Seal Insert

Side inserts for your rear main bearing cap.

These are part of the 800093 and 800099 rear main oil seals.

Application
4-134 engine

2 required per vehicle.

Fits:
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
57-64 FC-150
57-64 FC-170

Product Pricing Table
Part # Price
637790

$3.44

MSRP: $3.44

$3.44

MSRP: $3.44

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The 2 side seal protrude above the block when installed. Do these need to be trimmed at any point?

Willys Jeep Parts Tech:
Yes, once you have them installed you will trim to where about a 1/4" is sticking out.