Coolant pump

GenF-GTS · Feb 2, 2026

IdahoKTM said:
Based on the threads about failed I/C pumps on this forum, a 60-75% failure rate seems very high.

You have a nice looking pump, too bad it's not plug and play. If my pump failed, I wouldn't think twice about spending $785 vs. $450 for the OEM pump, but adding another $600 for a PCM + ??$$ for a tune makes it a deal breaker.

Not sure where you are getting a factory pump for $450 since they are

Nick797 said:
That is bad advice, mileage mismatch on PCM compared to other modules will throw a red flag to any dealer tech with a brain who doesn't want to do warranty work (99 percent of them).

For others:

GMB the OE manufacture, after a few years released the Hellcat version to the public at a fraction of the cost of the OEM one. I am sure they will do the same for the TRX in the future.

Currently the hellcat model looks like they are releasing an updated SKU (Which won't fit a TRX as they are rotated and the one connection is a 90 v a straight.) but for reference.

https://gmb.net/product/120-4510/ OLD

https://gmb.net/product/120-9040/ New

You misunderstood me, tune on the new PCM, re-install the old PCM when you need to.

OnTheReel · Feb 2, 2026

Permanent P1400 code will transfer over to the original PCM after swapping it back in anyway. Ain’t gonna fool them so you might as well go all in.

IdahoKTM · Feb 2, 2026

GenF-GTS said:
Not sure where you are getting a factory pump for $450 since they are

https://share.google/zsmfaBmtDwoNvK9xw

Nick797 · Feb 3, 2026

GenF-GTS said:
Not sure where you are getting a factory pump for $450 since they are

You misunderstood me, tune on the new PCM, re-install the old PCM when you need to.

OnTheReel said:
Permanent P1400 code will transfer over to the original PCM after swapping it back in anyway. Ain’t gonna fool them so you might as well go all in.

Exactly what OnTheReel said was my point lol.

thewrx · Feb 5, 2026

You could go with an ewp pump….

MurderedCat · Feb 5, 2026

thewrx said:
You could go with an ewp pump….

?

UnloosedChewtoy · Feb 5, 2026

thewrx said:
You could go with an ewp pump….

MurderedCat said:
?

If we're going to start throwing out generic pumps, there are several to choose from. The CWA400 is designed to fit our trucks physically and specifically, just needs electrical work (and a tune if you don't want a CEL, I believe).

EDIT: What I mean is other pumps would need an adapter plate, drilling, or other work to securely mount. Unless you believe in the zip tie method, of course.