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Cylinder Head Gasket
Fits 41-53 Jeep & Willys with 4-134 L engine

Part # 638540

New Cylinder Head Gasket

Seal up your leaky head. High quality reproductions of the originals.

Helpful Guides and Illustrations:
4-134 L Head Torque Sequence - Willys Jeep Cylinder Head

4-134 L engine

41-45 MB
41-45 GPW
46-49 CJ-2A
49-53 CJ-3A
50-52 M38
46-49 Truck
46-49 Station Wagon
48-49 Jeepster

Part # Price





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I have a gasket similar to this one that I bought from you 3 years ago. There are no markings on it. Does this gasket have a top or bottom side? There are no markings on the gasket.

Willys Jeep Parts Tech:
Metal side goes down.

I watched a video that stated I should put two coats of Copper Spray on the gasket before installing it on the 4-134 flathead engine. However, in that video the head gasket looked different than this one. The part number 638540 gasket appears to have a softer material over the steel layer of the gasket. So, I am hesitating putting the copper spray on this gasket. What is the proper way to prepare this gasket. Or, should I use it as it came from your store? Mitch

Willys Jeep Parts Tech:
You do not HAVE to use any sort of copper spray on these if you do not want to.
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