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NOS Valve Tappet Lifter (intake & exhaust)
Fits 41-53 Jeep & Willys with 4-134 L engine

Part # 991630

New Old Stock Valve Tappet (lifter) for Both Intake and Exhaust

Replaces your burned out, warped valve lifter. Comes complete ready for install with adjusting screw. Fits flat head motor. Highest quality available!!! New old stock - Limited amount available.

4-134 L engine

8 required per vehicle.

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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Are the lifter bases 1.28 and how much for each one

Willys Jeep Parts Tech:
Your caliper might be a hair off. I measure right at 1.38. These are NOS originals. These are sold each. Thanks!

i need 12 mushroom lifters barrel is .622 the lifter its self no adjuster is 2.440 long also will need adjuster also thanks charlie

Willys Jeep Parts Tech:
Email to try to ID what engine you have and help.

Can you buy just the top cap piece for the tappet ? Where the valve rides ?

Willys Jeep Parts Tech:
640020 is the part number.

What is the base diameter on these lifters?

Willys Jeep Parts Tech:
.625" like original.

Can you tell me what the diameter of the shaft is on these and the diameter of the bottom. Thanks Tom

Willys Jeep Parts Tech:
The diameter of the shaft comes out to 2-5/8 long and the diameter of the bottom comes out to 1-1/4" wide. Thanks

If I order ( Qty 8 ) for one vehicle ?

Willys Tech:
Yes qty 8 will do the whole vehicle.

are 4 long and 4 short? or all the same?

Willys Tech:
On the 4-134 L head the intake and exhaust tappets (lifters) were all the same.
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