New Replacement Oil Pump
Fits 46-71 Jeep & Willys with 4-134 engine

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New Replacement Oil Pump
Fits 46-71 Jeep & Willys with 4-134 engine
New Replacement Oil Pump

For both flat head and overhead valve gear driven motors. Guaranteed proper high volume pump for proper lubrication.

4-134 engine

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

Availability: In stock

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Questions: I have a 1957 CJ3B could you tell me if the F134 engines were originally timing chain or gear driven and what serial # did they change.
Question By: Dwayne on Mar 30 2021 5:20 PM
All 4-134 F heads were gear driven.
Answer By: Willys Jeep Parts Tech on Mar 30 2021 10:25 AM
Questions: I order a new oil pump and a gasket that goes between the oil pump and block. I also receive the cover gasket which I didn't order. Does the new pumps come without the cover gasket installed? I can't seem to tell if there is one there or not, but I don't want to remove it unless that is how it is shipped because who know what will fall out if I do.
Question By: RICHARD W HAYES on Jun 18 2020 2:24 AM
Yes, they should have the gasket on the cover plate from the manufacturer.
Answer By: Willys Jeep Parts Tech on Jun 18 2020 6:11 AM
Question By: PHIL on Jan 23 2020 10:49 PM
Yes, you should have the clearance you need to drop it.
Answer By: Willys Jeep Parts Tech on Jan 24 2020 6:02 AM
Questions: How much does it weigh ? Regards.
Question By: Federico on Dec 3 2019 8:01 PM
apprx 4 pounds unboxed.
Answer By: Willys Jeep Parts Tech on Dec 3 2019 12:29 PM
Questions: Will this pump fit a continental y112 engine? It is in a kohler genset. Thank you
Question By: mike on Jul 31 2019 12:17 AM
Unless they use the same 4-134 motor I dont believe so.
Answer By: Willys Jeep Parts Tech on Jul 31 2019 5:52 AM
Questions: Hello, Does this pump deliver a higher volume than the original?
Question By: Jack on Jul 7 2019 2:04 PM
These provide the correct amount of oil pressure for you 4-134 motor.
Answer By: Willys Jeep Parts Tech on Jul 8 2019 5:44 AM
Questions: Hi, I have a Kaiser Supersonic engine ( I believe it was a replacement ) in a 46' Cj2a with this oil pump. I need the oil pump cover gasket for this pump, and I am having trouble locating one. Do you sell the cover gasket for this pump ? Thank you, Justin
Question By: Justin on Sep 16 2018 9:57 PM
Sorry, I dont have just the cover gasket for that pump
Answer By: Willys Jeep Parts Tech on Sep 17 2018 11:54 AM
Questions: where are these made?
Question By: george brown on Sep 7 2018 7:28 PM
Answer By: Willys Jeep Parts Tech on Sep 7 2018 12:37 PM
Questions: Can the oil pump be replaced without having to pull the engine (i.e. just drop the oil pan)? If so, will the distributor need to be pulled to remove the pump?
Question By: Dave on Sep 5 2018 3:45 PM
Yes, you can pull it out. Just make sure you note the position of your rotor and notch on the oil pump when reinstalling in case it shifts.
Answer By: Willys Jeep Parts Tech on Sep 6 2018 5:40 AM
Questions: Do you have any information on how to correctly install the oil pump on an engine that has had the original pump and distributor removed?
Question By: Jude Mousel on Jul 9 2018 3:11 AM
Make sure your timing is set properly The tooth on the end of the distributor fits into the notch on the oil pump. Make sure to prime your oil pump too. If you like i can email you information on timing your motor too.
Answer By: Willys Jeep Parts Tech on Jul 9 2018 1:29 PM
Questions: I'm replacing the oil pump this replacement pump looks somewhat different bolt patterns match however there is a notch in the shaft of the original that is not in the replacement pump why is this
Question By: Terry Naylor on Jul 7 2018 12:12 AM
It will bolt right up. There are different versions used thru the years 46-71. Thanks!
Answer By: Willys Jeep Parts Tech on Jul 9 2018 1:28 PM
Questions: Are you aware of any problems that could arise with the pump or the engine if I use this pump and synthetic oil on an F-134 1962 Willys?
Question By: Isidoro Couvertier on Nov 26 2017 4:49 PM
We use 10W-30 non synthetic.
Answer By: Willys Jeep Parts Tech on Nov 27 2017 9:49 AM
Questions: 4-134 engine for 51 pickup. One drive tooth is chipped, can I replace just the gear?
Question By: Ken on Aug 29 2017 2:05 PM
No, you would need to replace entire oil pump and check your camshaft as well.
Answer By: Willys Jeep Parts Tech on Aug 29 2017 7:46 AM
Questions: i am guessing the tooth on the distributor shaft is off set along with the slot on the oil pump
Question By: james on Aug 5 2017 10:36 PM
Yes, that is correct.
Answer By: Willys Jeep Parts Tech on Aug 7 2017 5:58 AM
Questions: I bought a new pump for my L134 willys motor. The gear on the end is the wrong angle. Can I just change the gear or are the two different pumps for this motor?
Question By: Rick Reasoner on Jul 3 2017 12:10 PM
That is the difference between chain v. gear driven motor/camshaft. Please call us toll free and we can help.
Answer By: Willys Jeep Parts Tech on Jul 3 2017 5:55 AM
Questions: My CJ2A is serial number 10618. Is oil pump 80434 the correct one to purchase?
Question By: John on Jun 29 2017 5:58 PM
Its always always best to check if your chain driven or gear driven motor. Just remove the timing cover to check it. That appears early though.
Answer By: Willys Jeep Parts Tech on Jun 29 2017 12:39 PM
Questions: Do you have a rebuild kit for this pump?
Question By: James on May 19 2017 2:34 PM
No, I'm sorry. No one makes a rebuild kit for the oil pumps. Thanks!
Answer By: Willys Jeep Parts Tech on May 22 2017 5:20 AM
Questions: hellos, what is the normal pressure of this pump? thank you.
Question By: mike archambault on Sep 19 2016 8:33 PM
For the 4-134 engine minimum safe pressure is 6 psi at idle. at 2000 rpm it should be 20 psi minimum. Normal oil pressure is 35 psi at 2000 rpm.
Answer By: Willys Jeep Parts Tech on Sep 19 2016 1:35 PM
Questions: My 49 willy jeep seems to have good oil psi when cool it is at 40 psi as it warms up the psi drops to 15 and some time 0 one the gage can it has sat fore 5 years . It started rite up and runs good and sounds good no lose of power it has new oil in it 10w30 is there a way to test the oil pump are can a gage case me a falls reding when it warms up the oil psi gose up when revd up to 30
Question By: John vhal on Jun 14 2013 12:00 AM
Your oil pressure should always rise with more rpms...I would replace the gauge before you run it again to confirm you are not loosing pressure and doing damage to the engine.
Answer By: Willys Tech on Jun 14 2013 12:00 AM
Questions: I get a very (very) low flow of oil to the valves. Some what better to the gauge. Is there anyway to clean these oil lines that are in the block lines.? Can you force air in the reverse direction and hope to clean the lines?
Question By: Steve. on May 4 2013 12:00 AM
Yes you can always tank them and blow them out with compressed air after removing them.
Answer By: Willys Tech on May 6 2013 12:00 AM
Questions: can the oil pump be removed without it affecting the timming with the engine stil in the jeep.
Question By: Anonymous on Apr 25 2013 12:00 AM
Yes, as long as you slide it out and I would mark its position so you can get it to line up with the tooth of the dist.
Answer By: Willys Tech on Apr 25 2013 12:00 AM
Questions: How can I check to see if oil pump is bad
Question By: Scott on Jan 5 2012 12:00 AM
The best way to check is by your oil gauge. You can also remove it and check for any damaged teeth on your old one.
Answer By: Willys Tech on Jan 6 2012 12:00 AM
Questions: Does the oil pump drive the distributor shaft?
Question By: Anonymous on Dec 5 2011 12:00 AM
Yes. The end of your distributor shaft has a tooth that fits into the slot on the end of the oil pump.
Answer By: Willys Tech on Dec 6 2011 12:00 AM
Questions: Does this pump include any necessary mounting gaskets?
Question By: Mike on Jun 22 2011 12:00 AM
Yes that is correct.
Answer By: Willys Tech on Jun 23 2011 12:00 AM
Questions: Do you ship to Brazil?
Question By: Gernandes on Mar 24 2011 12:00 AM
Yes, we ship daily USPS and UPS international.
Answer By: Willys Tech on Mar 25 2011 12:00 AM
Questions: will this fit a belt driven
Question By: jody on Feb 25 2011 12:00 AM
I think you mean chain driven motor. This is for gear driven. The early chain driven pump part number is: 804769
Answer By: Willys Tech on Feb 28 2011 12:00 AM
Questions: Will this pump fit any 4-134 F head engine?
Question By: Randy on Nov 10 2010 12:00 AM
Yes, this is the proper replacement pump for any 4-134 engine. It is a direct bolt on pump and hi-flow.
Answer By: Willys Tech on Nov 11 2010 12:00 AM