Skip to content

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

Marsoni M251S
Sale price$403.67
Pay 4 payments of $100.92 a month.Shop Pay
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
Easy Shipping

Quick Dispatch:

Your CAT Pumps 4000 PSI (4.0 GPM) Replacement Triplex Plunger Pressure Washer Pump orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your CAT Pumps 4000 PSI (4.0 GPM) Replacement Triplex Plunger Pressure Washer Pump ships.

Need Help?
Questions about CAT Pumps 4000 PSI (4.0 GPM) Replacement Triplex Plunger Pressure Washer Pump, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for CAT Pumps 4000 PSI (4.0 GPM) Replacement Triplex Plunger Pressure Washer Pump in your area.

Get Shipping Estimates

Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 883 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
I
Verified Purchase
Iesha
Phoenix, US
★★★★★ 5
Purple suite
Color: Lavender Purple, Size: 16, Color: Lavender Purple, Size: 16
Love it was perfect. The color was nice it was soft and the size was perfect . I bought the purple one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
A
Verified Purchase
Autumn Osborne
West Palm Beach, US
★★★★★ 1
The suit was ripped badly
Color: Ivory, Size: 6
It had rips all through
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 23, 2026
L
Verified Purchase
Laverne W.
Cuba, US
★★★★★ 4
Not quite right for me!
Color: Sage Green, Size: 16
It’s not as high quality as I thought it would be 🤷🏾‍♀️
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
N
Verified Purchase
nikkiey
Lexington, US
★★★★★ 5
Runs small
Color: Beige, Size: 6
Runs small
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
D
Verified Purchase
Donna
Chelsea, US
★★★★★ 5
Mock shirt for everyday wear.
Color: Gray Green, Lotus Pink, Sky Blue, Size: X-Large
Love how soft the fabric is and wears very well. Very happy with purchase and have bought other colors as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026

recommand products