Save 10% Off All Brake Parts Enter STOP10 at checkout.

FREE SHIPPING on all orders $98+ See Details

Select Your Currency
  • Africa
  • Americas
  • Asia
  • Europe
  • Oceania
Shop Kaiser Willys

Valve Stem Intake Oil Seal (O-ring)
Fits 50-71 Jeep & Willys with 4-134 F engine

Part # 800986

New Replacement Valve Stem Intake Oil Seal (4 required per vehicle)

Keeps your oil where its supposed to be. Replacement O-ring for intake.

4-134 F engine

53-64 CJ-3B
55-71 CJ-5
52-66 M38A1
50-53 Truck
50-53 Station Wagon
50-51 Jeepster

Part # Price





1 Item has been added to your cart!

Product Videos

Questions & Answers

Please Wait...

Ask Question Add Answer

All questions will be displayed after moderation. All answers will be displayed after moderation.

The seals on my motor are metal..are the ones you sell rubber or metal?

Willys Jeep Parts Tech:
These are the rubber style

Are these in the gasket sets ?

Willys Tech:
These are each. They were only used on the intake.

Are 4 of these "O" rings included in your valve grind kit?

Willys Jeep Parts Tech:
No, but they will come in the engine overhaul gasket set.

I have removed the head on my 1952 M-38A1 because of low compression on cylinders 2 & 3. I expected to find a leak between those cylinders in the head gasket but did not find anything there. After removing the head and removing all four intake valves, I find carbon build up on the intake manifold side of the valves. The seating surfaces appear brownish but not pitted of worn noticeably. I did find the o-rings under the caps around the valve stems. I do not understand their purpose. I did not find another seal at the top of the valve guides. I do not find any spec on the "valve guide to valve stem" clearance or any reference to sloppiness of same. What else should I be looking for?

Willys Jeep Parts Tech:
There are no other seals there other than those O-rings. It sounds like the issue may be the piston rings. I would take a look at those given you dont seem to have much wear on the valve. I would also check your cold clearances on your valves.
Request Catalog
THANK YOU! Your catalog request has been submitted successfully. Please note:

If your catalog does not arrive within 7-10 business days, call us Toll-Free at (888) 648-4923.

Email Subscription
THANK YOU! You have successfully subscribed to our newsletter.
Contact Form
THANK YOU! Your contact form request has been submitted successfully.
Photo Contest
SUCCESS! Your photo contest entry has been submitted!
Browser warning
The browser you are using to visit our website is no longer supported. For the best browsing experience, please visit us using a different browser.
I understand, close this message