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Thermostat Housing Gasket
Fits 41-52 Jeep & Willys with 4-134 L engine

Part # 639650

New Replacement Thermostat Gasket (1 required per vehicle)

Properly seals thermostat housing to block. Cut and stamped like original. A must replacement!!!

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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Do you recommend gasket sealer in this location? Do you recommend a brand?

Willys Jeep Parts Tech:
I would yes, any hi-temp Permatex is good.

I have a 1848 L-head 134 engine, However the thermostat housing and head only have 2 studs to mount it. Do you sale a gasket for this?

Willys Jeep Parts Tech:
Sounds like a head off a Kaiser passenger car. You'll have to make it.
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