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Complete Engine Overhaul Gasket Set (US Made Rear Main Neporene Seal)
Fits 41-53 Jeep & Willys with 4-134 L engine

Part # 810584

Complete Engine Overhaul Gasket Set

Comes with every gasket you need to entirely overhaul and reseal your engine. If you just need to stop a few leaks or are rebuilding the entire motor these kits are the way to go.


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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Does the gasket set 810584 come with usa neoprene rear main seals, thank you

Willys Jeep Parts Tech:
Yes it does.

Is the head gasket copper?

Willys Jeep Parts Tech:
Composite with metal backing. We do carry a copper head gasket if you like as well.

Is the oil pan drain plug gasket included in this set?

Willys Jeep Parts Tech:
Yes that is correct.

Why don't you list what comes with the set?

Willys Jeep Parts Tech:
Its a complete set. If you do need us to we could email you what each gasket is.

Does this kit include the oil pan sump gasket and the 2 oil pump gaskets (cover & pump to block)?

Willys Jeep Parts Tech:
Yes, those gaskets are included in this set. Thanks

Does this come with the thermostat gasket? I don’t see it pictured.

Be the first to answer this question.

is the timing cover oil seal included? thanks

Willys Jeep Parts Tech:
Yes, that is correct.

Hi, Is the front crankshaft seal - SKU:647468- included into this gasket set? Thanks for your support Jean-Francois

Willys Jeep Parts Tech:
Yes, the 647468 seal is included in this gasket set. Thanks

Is the head gasket provided in this set copper backed? If not, is there a set available with the copper gasket? Thank you.

Willys Jeep Parts Tech:
It is a metal backed head gasket. We do sell a copper gasket by itself if you like.

does it come with valve seals

Willys Tech:
The 4-134 L head did not use valve stem 0-rings.

I have a motor from a Model 440 in my jeep, Will this gasket kit fit my 1940 L4-134?

Willys Tech:
Yes this is for the 4-134 L head engine.

Hi does this kit come with new Neoprene seals for rear mains? Thanks Pat

Willys Tech:
Yes it comes complete with rear main seals.

I see a rear main seal. What are the rope seals for?

Willys Tech:
I think it comes with both rear mains rope and neoprene.

does this have the crankshaft seals? just wondering because alot of these gasket sets that i have found online have been without them.

Willys Tech:
Yes they will have the seals in them.


Willys Tech:
Yes that is correct. It is for the 4-134 L engine.

My eng is a 1948 L Head will this kit have the rear main seal?

Willys Tech:
Yes this is the proper one for you with rear main seal.

I can't find on the site the oil pan gasket for an MB 45 which is in this set, do you sell it by the unit? Thanks

Willys Tech:
The oil pan gasket is part number: 639980

My engine is a 1941 4-134 L flat head will this gasket set work?

Willys Tech:
Yes, this is the correct one for you.
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