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Neoprene Rear Main Oil Seal
Fits 41-71 Jeep & Willys with 4-134 engine

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Neoprene Rear Main Oil Seal
Fits 41-71 Jeep & Willys with 4-134 engine

New IMPROVED Replacement Rear Main Oil Seal in Neoprene.

Seal up your leaky rear main seal. Better than original rope seal. YOU WILL HAVE NO PROBLEMS WITH THE INSTALL OF THESE IMPROVED SEALS


Helpful Guides and Illustrations
Rear Main Oil Seal Installation

Application
4-134 engine

Fits:
41-45 MB
41-45 GPW
46-49 CJ-2A
49-53 CJ-3A
53-64 CJ-3B
55-71 CJ-5
50-52 M38
52-66 M38A1
46-53 Truck
46-53 Station Wagon
48-51 Jeepster

Item # Price
800093
$27.99

Availability: In stock

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Questions & Answers

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Questions: To install this seal, i have read in the Q/A that oil pan and crankshaft must be removed. However, the service manual has a note on p. 31 that reads "removal of crankshaft may be accomplished only with the engine out of vehicle"... Can you confirm this, or is it possible to install seal without pulling engine? Thanks for your help
Question By: Chris on Jan 23 2018 9:26 PM
You can do it with the engine still in. Typically you can just lower the crankshaft from the bottom. Having the vehicle on a lift is easiest.
Answer By: Willys Jeep Parts Tech on Jan 24 2018 5:59 AM
I just replaced my real seals using a device called a sneaky pete. I removed the oil pan and rear crankshaft bearing cap and seal, then used the sneaky pete to pull the new seal into place. After a few tries the sneaky pete worked.
Answer By: jim osborn on Mar 6 2018 2:40 AM
Questions: does the thin lip go toward the flywheel or the engine. A previous question about this was answered the lip goes to the inside but what do you mean by the inside? Thanks and a picture would be very helpful. I have the engine apart for so long I forgot how it came out. Thanks.
Question By: Tom Wilkinson on Oct 9 2017 7:20 PM
Lip goes towards the engine. Thanks!
Answer By: Willys Jeep Parts Tech on Oct 10 2017 5:53 AM
Questions: Can you drop the oil pan and pull the old side cap seals out and replace the new ones with out doing anything else.
Question By: Larry Hannah on Jun 16 2017 5:22 PM
Yes, to replace and install all you have to do is drop the oil pan. Thanks!
Answer By: Willys Jeep Parts Tech on Jun 17 2017 9:14 AM
Questions: Does this seal fit the 1970 225 V6 3.7l. If not can you recommend correct seal? Thank you.
Question By: JESUS M GONZALEZ on Jan 16 2017 11:08 PM
This is for the 4-134 engine only. We do offer complete engine overhaul gasket sets for the V6-225 engine part number: 948965
Answer By: Willys Jeep Parts Tech on Jan 17 2017 5:44 AM
Questions: What diameter are the side packing in this kit? Anything over .375 will not fit the military block.
Question By: Kevin DeWitt on Jan 16 2017 10:59 PM
approx. .35" like original. They are for all 4-134 engines.
Answer By: Willys Jeep Parts Tech on Jan 17 2017 5:49 AM
Questions: Should have added to my previous question, hit wrong key. How far do the side cap seals protrude on a L134?
Question By: Tom Elbert on Aug 10 2016 4:40 AM
The packings should protrude approximately 1/4" from the case. With the oil pan installed, it will force them tightly into the holes and effectively seal any openings.
Answer By: Willys Jeep Parts Tech on Aug 10 2016 5:46 AM
Questions: Do you replace this seal from oil pan, or do you have to remove bell housing?
Question By: Steven Dumas on Jul 8 2016 2:24 PM
You have to drop the oil pan and the crankshaft to install.
Answer By: Willys Jeep Parts Tech on Jul 8 2016 8:13 AM
Questions: Does the cj6 use the same seal?
Question By: alex on Jul 2 2014 12:00 AM
Yes as long as you have the 4-134 engine.
Answer By: Willys Tech on Jul 2 2014 12:00 AM
Questions: Is it necessary to remove the flywheel in order to drop the crankshaft when changing the rear main seals?
Question By: Anonymous on Jun 23 2014 12:00 AM
You will need to drop the oil pan and bearing caps for sure.
Answer By: Willys Tech on Jun 23 2014 12:00 AM
Questions: Where do the 2 round (about pencil size) rubber sticks go?
Question By: Wayne on Aug 23 2011 12:00 AM
Those are your side cap seals.
Answer By: Willys Tech on Aug 23 2011 12:00 AM
Questions: How do you get the top seal around with out removing the engine?
Question By: Eric on Apr 19 2011 12:00 AM
You just drop the oil pan and crankshaft from below.
Answer By: Willys Tech on Apr 20 2011 12:00 AM
Questions: Do you trim the side cap seals flush? Or leave some protruding? Should the main seal be flush with the cap?
Question By: Brian Myers on May 26 2016 12:09 AM
They should stick out a bit but there is a spec in the mechanics manual to fit it. Please call us toll free we can help.
Answer By: Willys Tech on May 26 2016 6:07 AM
Questions: Which side faces the flywheel? The outer lip appears thicker on one side.
Question By: RD Carlson on May 4 2016 2:48 PM
The lip should go to the inside.
Answer By: Willys Tech on May 4 2016 9:05 AM