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Replacement Water Pump with Pulley
Fits 50-66 M38, M38A1

Part # 800002

New Replacement Water Pump

Complete water pump with double groove pulley and gasket included. Ensure proper cooling of your vehicle!!!

4-134 engine

50-52 M38
52-66 M38A1

Part # Price





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What is the distance from the sealing surface to the block to the center of the forward most belt groove? Thanks

Willys Jeep Parts Tech:
3 1/2 inches

Hello. I need to know how much this water pump weighs, to calculate the shipping. Thank you so much

Willys Jeep Parts Tech:
Approx 11 pounds boxed.

Looking for a water pump for a 1953 Willy's Aero Eagle F-Head 6 cylinder. Any ideas? Thanks, Roy

Willys Jeep Parts Tech:
We can rebuild yours. Please call us toll free.

Does Kaiser Willys offer a double groove pulley for a water pump off a F-134 Hurricane from a 1953 CJ3b?

Willys Jeep Parts Tech:
A double grove pump was never used on the 3B but with that being said, this water pump will work for you if you're looking to upgrade. Thanks

Mike, is the bypass fitting as seen on the picture included with the water pump?

Willys Jeep Parts Tech:
I just checked shelf and like in the other photos we have of it doesnt appear so. I do have the fitting though part number: 7372808 or 7372810

Is this basically the same water pump that a 49 cj3a L134 uses, but with two a groove pulley? I am wanting to add a HyLo snow plow pump to mine, but don't have the double groove pulley for my generator that is typically used to drive the pump. Will this work for me, if I can find a correct belt to go to plow pump from the second groove on this water pump?

Willys Jeep Parts Tech:
They are the same yes. The only difference is the pulleys. So it should work for you.

I have a 1967 M38A1 CDN2 (Canadian 24 volt)....the water pump on it now has a 3 groove pulley and a 3 grove pulley generator.....will this work?

Willys Jeep Parts Tech:
If you are only using 2 of the belt it would work just fine.

Will this pump work on a 1946 CJ2A 134 flat head. I mainly want to know if the grooves will line up with the crankshaft pulley and is the water pump pulley a larger diameter than the stock pulley? If so, will it slow down my fan speed any (which I'd like it to do)? Last question, will my fan still space off the engine the same distance? -----Jeepfeller

Willys Jeep Parts Tech:
I do think the outside would line up. It may be alittle further out but should be fine under tension. But there is no advantage. Your better off using the original one for the CJ-2A 649844 water pump.

hi i have a 1967 jeep m38a1 CND2 will this water pump fits, my fan turns freely after hearing a grunging noise, will this fix the problem?

Willys Jeep Parts Tech:
Yes, this is a complete unit.

I have a 46 2a, L134, in understand that this pump will fit, but is there and difference in the fan bolt pattern? I use a double pulley pump to eliminate the belt flex and reduce pressure on my governor.

Willys Jeep Parts Tech:
The pattern is the same to the 4-134 and it will work.

Hi Would you be able to quote shipping price to send this pump to Rangiora 7400, Christchurch, New Zealand, Many thanks,

Willys Jeep Parts Tech:
Please email your full shipping address and the part numbers and quantities you need and we can fix you up. Thanks!

Do you have a complete power steering conversion kit? Or a parts list of what all is needed?

Willys Jeep Parts Tech:
Sorry I don't carry a complete kit.

I have a 1960 CJ5 Willys with a double pulley water pump, is this the correct one?

Willys Jeep Parts Tech:
Yes, this would be right if you have the 4-134 engine.

I am from the Philippines and I have problem with my m38 jeep regarding my water pump.I have already replaced the seal,shaft bearing and still the water leaks,I have noticed that the surface of my pump which the seal touches is not smooth by machining it does the leak of water be gone?Thank you.

Willys Tech:
If you have a rough surface on the block then you will need to smooth that out to make a good seal.

will this pump work on a '47 CJ2A with a flat head 4 and double groove pulleys

Willys Tech:
The CJ-2A never used a double groove pulley. But yes it will mount up just fine.

does this have the fitting for the heater hose?

Willys Tech:
Yes, it has a plug there.

I have a 1951 M38 with an L head 134. The water pump I removed only had a single pulley do I need this pump or the single pulley pump. On your description the single pulley isn't for the M38.

Willys Tech:
Im sure it would work fine. Originally the military were double groove though.

Good price on the dbl pulley water pump. I need one. Is it made in America?

Willys Tech:
I beleive they are Canadian made.
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