CAT Pumps 4000 PSI (4.0 GPM) Replacement Triplex Plunger Pressure Washer Pump

CAT Pumps 4000 PSI (4.0 GPM) Replacement Triplex Plunger Pressure Washer Pump

Marsoni

M251S

$403.67

Get it in 3 business days with 1 day shipping. Friday, May 29

CAT Pumps 4000 PSI (4.0 GPM) Replacement Triplex Plunger Pressure Washer PumpThis Cat Pumps Pressure Washer Pump provides a fast changeover, even in the field. Pre plumbed and pre tested. Fits 4 bolt engine face plates. Bolts not included; use existing bolts from old pump to install new pump. High Quality Replacement For Worn Out Pumps Easily replace pump without replacing your pressure washer Triplex pump can be rebuilt to save money and extend pump life Powerful And Versatile Will push 4. 0 GPM @ 4000 PSI Easy Direct Mount

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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This kit is great. I bought this because I know that the seller paired the cutting tool to be the perfect size and it was! Not just that, but the hole cutter was well done and cut thru the 3 layers - laminate, plywood and particle board with ease. The only thing that I would do different, is go to 3" next time. 2" was very tight when running the 2 @ 120 volt cord ends through the cap.

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Reviewed in the United States on December 5, 2025

Verified Purchase

Tmach

San Leandro, US

★★★★★ 5

Very sturdy under desk mount

Color: Black, Size: Width up to 13.4''

I'm using this with an Asus Prime micro-ATX case on a sit/stand desk, and it works beautifully. It's expandable, so it would have no trouble with a full ATX case. The PC is well supported and there is no wobble whatsoever even when the desk is moving between sitting and standing positions. Highly recommended.

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Reviewed in the United States on May 13, 2026