Face Book
Pin It
Reddit
Tweet This
Email This Page
Print This Page
Cat Pumps 4PPX25GSI
Cat Pumps 4PPX25GSI
Cat Pumps 4PPX25GSI
Cat Pumps 4PPX25GSI
Cat Pumps 4PPX25GSI
Hover to zoom
1 of 2
Cat Pumps 4PPX25GSI
Cat Pumps 4PPX25GSI

CAT Pumps 3300 PSI 2.5 GPM (3/4" Shaft) Triplex Pressure Washer Pump w/ Adjustable Unloader

Model:

4PPX25GSI

Write A Review
$346.00
Free Shipping
  Learn More About Free Freight
Free Shipping
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
Factory-Direct
Ships in 4-7 Business Days

CAT Pumps 3300 PSI 2.5 GPM (3/4
CAT Pumps 3300 PSI 2.5 GPM (3/4" Shaft) Triplex Pressure Washer Pump w/ Adjustable Unloader
Model: 4PPX25GSI
$346.00
Accessories
Features
Specifications
Reviews
Product Q&A
How-To Articles
Manuals

Recommended Accessories

Power Equipment Direct expert image
Expert Recommended Accessories Selected by Jim, our Expert
Optional Accessories 5
$23.00
In-Stock
$27.99
Factory-Direct
$27.00
In-Stock
$32.00
In-Stock
$14.00
Factory-Direct

Features

Grade

Professional

Style

Gas

Inflow

3/8" Threaded (Female)

Outflow

3/8" Threaded (Male)

  • CAT Brand Triplex Plunger Replacement Pump
  • Durable & long lasting; advanced design for smooth liquid flow
  • 3/8" NPT female inlet, 3/8" NPT male outlet; 140°F maximum water temperature
  • Concentric Solid Ceramic Plungers
  • Ceramic runs cooler, lasts longer; assures true wear surface
  • Specially formulated seals deliver extended seal life
  • Stacked Valve Design
  • Makes servicing easy
  • Ultra-Compact 3/4" Hollow-Shafted Pump
  • Designed for direct mounting to gas engine
  • Integral Pressure Unloader
  • Standard built-in bypass controls pressure & protects the pump
  • 1/4" Fixed Chemical Injector Hose Barb
  • Allows addition of pressure washer safe soap to the water flow
  • Be Sure To Measure The Shaft & Flange Bolt Holes Accurately!
  • There is a 25% restock fee for returned pumps
  • See the Owner's Manual (under the Specs tab) for dimensions
  • Pump ships bare so you'll need to re-use your connectors & siphon tube or purchase them separately
  • Please Call Us For Sizing Assistance w/ Information Below:
  • 1. Age of Pump and Model # (must be no more than 15-yrs old)
  • 2. Is the pump Vertical or Horizontal
  • 3. Shaft Size - 3/4", 7/8" (vertical ONLY), 1", or Belt Drive XXmm
  • 4. Engine Brand and HP (model # if available would be helpful)
  • ***Shaft Size Measurements Must Be Precise***

Specifications

4PPX25GSI
specs product image PID-10092
General Information
Product Category
Pressure Washer Pumps
Overview
Product Category
Pressure Washer Pumps
Weight
10.7 Pounds
Consumer Warranty
2 Years
Product Length
8.03 Inches
Product Width
7.83 Inches
Product Height
6.61 Inches
Accessories
Pump Brand
CAT
Pump Type
Triplex Plunger
Shaft Size
3/4
Pump Design
Horizontal
Adjustable Pressure
Yes
Accessory Grade
Professional
Accessory Style
Gas
Inflow
3/8" Threaded (Female)
Outflow
3/8" Threaded (Male)
Maximum GPM Learn More
Maximum GPM
Gallon per Minute
2.5
Rated PSI
3300 PSI
Chemical Injections
Sold Separately

Reviews

(5)
Cat Pumps 4PPX25GSI Reviews & Ratings
Verified Buyer
Verified Buyer
Not As Advertised
By Amr M. 
Grove city, Ohio
Purchased 09/14/2021 | 
Review Posted 10/08/2021 
Pump sent was used and the wrong model number even when adjusted it never hit rated psi
Amr M. Recommends This
Was this review helpful?
Expert Response
First and foremost thank you for your purchase of the CAT Pumps 3300 PSI 2.5 GPM Triplex Pressure Washer Pump w/ Adjustable Unloader. We appreciate you taking the time to provide us with your feedback and we can certainly understand your aggravation.
We apologize for any issue you may be having and would like to help rectify the situation. If you could please send some images of the pump and describe the issue to service@pressurewashersdirect.com, we will be able to review and confirm the pump for you.

We appreciate your business and apologize for any inconvenience.
Dale, the Power Equipment Expert
Dale V.
Power Equipment Expert
Rating Breakdown
Features
3/5
icon-review-marker
Quality
1/5
icon-review-marker
Performance
1/5
icon-review-marker
Value
1/5
icon-review-marker
Verified Buyer
Verified Buyer
Exact Replacement For My 10 Year Old Cat Pump
By Highmark L. 
Conestoga, Pennsylvania
Purchased 04/14/2021 | 
Review Posted 05/13/2021 
Simple install, works like expected. New life for my 10 yr old machine.
Highmark L. Recommends This
Was this review helpful?
Rating Breakdown
Features
4/5
icon-review-marker
Quality
4/5
icon-review-marker
Performance
4/5
icon-review-marker
Value
4/5
icon-review-marker
Verified Buyer
Verified Buyer
Does Not Have The Pressure Output Specified Could Could Not Pinp
By Chau N. 
Splendora, Texas
Purchased 07/18/2020 | 
Review Posted 08/20/2020 
Installed went well but pressure output was very weak.
Chau N. Recommends This
Was this review helpful?
Rating Breakdown
Features
5/5
icon-review-marker
Quality
5/5
icon-review-marker
Performance
2/5
icon-review-marker
Value
5/5
icon-review-marker
Pros:
Features
Verified Buyer
Verified Buyer
Good Pump
By John G. 
Cumming, Georgia
Purchased 02/03/2020 | 
Review Posted 02/28/2020 
Replaced a CAT 3DX that failed. This pump has similar specs and is working great.
John G. Recommends This
Was this review helpful?
Rating Breakdown
Features
4/5
icon-review-marker
Quality
4/5
icon-review-marker
Performance
4/5
icon-review-marker
Value
4/5
icon-review-marker
Pros:
Quiet, Reliable, High Quality, Id Buy It Again
Verified Buyer
Verified Buyer
Very Smooth Working Pressure.
By Matt S. 
Stanford, Kentucky
Purchased 02/23/2018 | 
Review Posted 03/20/2018 
Good pump, had to remount engine to get it to fit on the cart.
Doesn’t seem to put out quite as much pressure as the previous 3300 psi AAA pump that was on it. But it’s got a smoother pressure through the wand. Smooth transitions on the unloader. Well worth the money.
Matt S. Recommends This
Was this review helpful?
Rating Breakdown
Features
5/5
icon-review-marker
Quality
5/5
icon-review-marker
Performance
5/5
icon-review-marker
Value
5/5
icon-review-marker
Pros:
Durable, Price, Reliable, High Quality
Cons:
Bad Instructions

Product Q&A

(2)
Expert avatar photo
Product Questions Answered by Jim, the Pressure Washer Expert
I have a 6hp, 3450rpm, 3/4 shaft motor. will this motor work with this pump rated at 3400rpm. Or can you recommend a single phase motor for this pump. Thanks.
Wayne 
from Virginia 
January 06, 2016
can the 4PPX25GSI pump fit the northstar gsx 160 pressure washer
Nelson 
from California 
August 06, 2015

How-To Articles

How To Pick The Perfect Replacement Pressure Washer Pump
How To Pick The Perfect Replacement Pressure Washer Pump
If your pressure washer turns on, but won't pressurize water, don't give up on ...
How to Replace the Pump on a Pressure Washer
How to Replace the Pump on a Pressure Washer
Pressure washer pumps can be burned out in many ways. It's more common than you...
Power Equipment How-To Library
Power Equipment How-To Library
Articles, Tips and Buying Guides from Our Experts

Manuals

 
Media Gallery
CAT Pumps 3300 PSI 2.5 GPM (3/4" Shaft) Triplex Pressure Washer Pump w/ Adjustable Unloader
Cat Pumps 4PPX25GSI
Cat Pumps 4PPX25GSI
Cat Pumps 4PPX25GSI
Customer Review Images