Found a less expensive MEP 802A water pump

[Coley]

After much messing around and looking for part numbers I found a replacement MEP 802A water pump for significantly cheaper than most people want. It was on Amazon. You can find it at https://www.amazon.com/gp/product/B00JLBW3BS/ref=ox_sc_sfl_title_1?ie=UTF8&psc=1&smid=A12JDR3I03IC92

It comes with gaskets for the pump, and for the thermostat.

Hope this saves folks a little $$

Coley

 

[Daybreak]

Howdy,

Good find.

MEP-802A - Onan DN2M - Lister Petter LPW2
MEP-803A - Onan DN4M - Lister Petter LPW4

The engine design has been around a long time.

 

[coxju04]

will that pump work for the 803?

 

[Guyfang]

Coxju04,

its time you hit the books. Look in the 802 and 803 parts manual and find out yourself. Good training.

 

[coxju04]

That's the game plan, but I haven't had much time to read the TM's right now, while I've been in the Middle East. I plan on hitting the books when I get home, Thanks!!

 

[jcollings]

Hey, I Was looking for the Same pump But Not available any more.

Thank you

 

[Daybreak]

Howdy,

Anyone have a source for a MEP-802/803 water pump?

The one listed above seems to be missing in action?

Coley, how did that pump work out for you? Has anyone else gotten a pump which fits and works correctly?

 

[jamawieb]

https://www.ebay.com/itm/751-41022-...ash=item1a1f8ff6d4:g:cPYAAOSwMVdYIrJo&vxp=mtr
I know this is not allowed but kind of hard to find on ebay. You can also use a 750-40621. But on this one I had to mount the temperature shutdown sensor in the port where the plug is suppose to go because where the sensor is suppose to go, is to small for the particular sensor. I have also had problems with the 751-41022 temperature shutdown sensor port and had to grind the hole bigger. Everything else on both water pumps match perfect.

 

[jcollings]

how long have you had them installed do they have good longevity?

Thank you,

 

[jamawieb]

how long have you had them installed do they have good longevity?

Thank you,

So far, I've had 800 hours on one and it's done perfect. I had another that failed at 300 because the customer's head gasket blew and he put radiator stop leak in it and caused the pump to leak.

 

[jcollings]

How many total hours were on each set?

Thank you,

 

[jamawieb]

Over 3000 when I replaced them.

 

[jcollings]

Thank you for the info........

 

[impi]

I had a similar experience re: the size of the ports in the cheap copy.I just took a tap and cut through the upper port for the temperature shut off probe, and I used a dremel with a grinding stone to sort out the issues with the temperature sensor port as I could not find a reasonably priced 5/8" tap. The bottom two ports on the 751-41022 I blocked off with 3/8 square drive brass plugs from Home depot with some Locktite 741 to make the marriage more permanent.

I flushed the whole cooling system as part of the exercise (Stuck the garden hose in one end of the radiator and left it running until the water ran clear. Also hosed some water through the cooling ports on the engine until it ran clear. Lots of nasty black sludge came out. The set definately runs cooler. Perviously it was hovering near 220 on the gauge. It now appears to be more around the 200 range under heavy load.

https://www.ebay.com/itm/751-41022-...ash=item1a1f8ff6d4:g:cPYAAOSwMVdYIrJo&vxp=mtr
I know this is not allowed but kind of hard to find on ebay. You can also use a 750-40621. But on this one I had to mount the temperature shutdown sensor in the port where the plug is suppose to go because where the sensor is suppose to go, is to small for the particular sensor. I have also had problems with the 751-41022 temperature shutdown sensor port and had to grind the hole bigger. Everything else on both water pumps match perfect.