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Pressure-Pro Slap Happy CAT 3DX 2500 PSI 2.9 GPM Replacement Pump w/ Plumbing Kit

Pressure-Pro Pressure Washers and Accessories
Model: SLP3DX29GS1-057
(Based on expert analysis, manufacturer ratings and customer reviews)
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5
1 Review
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Why Repair A Worn Out Pump?
"Slap" on a new one at a Slap Happy price
Get a great quality replacement assembly for less than a repair

CAT Brand Pump Assembly With Built-In Unloader
Adjustable pressure allows you to suit the spray to the job

Plumbing Included- Ready To Install
Comes with unloader, pressure relief valve,
Pressure washer hose plug, and garden hose inlet w/ filter

Powerful And Versatile
Ideal for 5 to 6.5 HP engines
Will push up to 2.9 gallons per minute at 2500 PSI

Be Sure To Measure Flange Bolt Holes & Shaft Accurately!
There is a 25% restock fee on returned pumps

Pump Brand
Pump Type
Triplex Plunger
Rated PSI
2500 PSI
Made in USA
10.7 Pounds
Product Length
7.99 Inches
Product Width
7.75 Inches
Product Height
6.29 Inches
Consumer Warranty
5 Years
Commercial Warranty
5 Years
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  2 Questions
Q: hi Bill, will this pump work turning in either direction or is it just one way, if just one is it clock or counter clock ways, also what is the minimum rpm that the jump can run at. thank you jeff b
by Jeff on June 16, 2012

A: I have checked with CAT's tech support on this and am being told it can turn either way. Normal rotation is the shaft turning toward the manifold. If the pump is run in reverse the oil needs to be filled to the top of the sight glass. The minimum RPM is 100.
by Brian, Product Expert

Q: Hi,will this pump fit a 5.5hp honda engine. thanks Lou
by Lou from Tennessee on August 16, 2011

A: This pump mounts to a 3/4" engine shaft. More than likely your 5.5hp engine does have a 3/4" shaft, however you should confirm it before making the purchase. All engines that size will have either a 3/4" or 7/8" diameter shaft. Although the size difference is minimal, it makes a huge difference in determining the compatibility of a pump.
by Brian, Product Expert

Pressure-Pro SLP3DX29GS1-057 Reviews & Ratings
1 Review  Sort by 
Tim M.
Purchased from Pressure Washers Direct
Purchased 9/29/12
5 out of 55 out of 55 out of 55 out of 55 out of 5
Easy Replacement
This kit includes a bolting plate that fits the Honda GC160, 5 HP bolting flange perfectly. It's a 10 minute job and you are ready to go.

The pump can be mounted upside down. Swap the oil drain and fill plug (30 sec) if you need the alternate orientation. Wouldn't fit in the normal as-delivered orientation on my pressure washer. Nothing in the instruction sheet, but saw a commercially built pressure washer with the CAT pump upside down, and CAT customer service emailed me back to say the... more
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