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The AR 2800 psi 2.5 gpm 7/8" hollow shaft vertical replacement pressure washer pump w/ unloader is available for purchase today.

Read AR RMW2.5G28 reviews before checking out.


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AR 2800 PSI 2.5 GPM 7/8" Hollow Shaft Vertical Replacement Pressure Washer Pump w/ Unloader

(Based on expert analysis, manufacturer ratings and customer reviews)
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5
11 Reviews
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  • Features
  • Specs
  • 2
    Q&A 
  • 11
    Reviews
  • Articles
  • Shipping
  • Accessories
Grade
Style
Inflow
3/4
3/4" Threaded (Female)
Outflow
22m Threaded (Male)
22m Threaded (Male)
High Quality Replacement For Worn Out Pumps
Fits many homeowner-type pressure washers (not Karcher)

Vertical Axial Cam Pump With Unloader
Mounts under engine; direct drive for convenience and durability
Built-in pressure control valve; 140 degree max temperature

Standard Matching Gasoline Mounting Flange
Convenient connection to 7/8" gas engine flange
7/8" hollow shaft spins at 3400 rpm
Bore diameter 12mm; Stroke 9.7 mm
Includes unloader & chemical injection
4.3 HP pump; Crankshaft ID Stamp 5

Powerful And Versatile
Will push 2.5 GPM @ 2800 PSI- ideal for 5 to 6.5 HP engines
Water inlet 3/4" Female garden hose; outlet: 22MM Male thread

Installation Details: (see installation drawings)
7" Overall height; 5.5" from top to center of output connection
6" from top to center of input connection;
2" from center of input to center of output connection

Please Measure Shaft And Flange Bolt Holes Carefully!
There is a 25% restock fee on returned pumps


Need Help? Ask Our Snow Blower Experts.
Pump
Pump Brand
AR
Pump Type
Axial Cam
Adjustable Pressure
No
Chemical Injection
Siphon Tube
Accessories
Accessory Grade
Prosumer
Accessory Style
Gas
Inflow
3/4" Threaded (Female)
Outflow
22m Threaded (Male)
Rated PSI
2800 PSI
Overview
Weight
7.7 Pounds
Product Length
6 1/4 Inches
Product Width
9 1/4 Inches
Product Height
5 7/8 Inches
Consumer Warranty
1 Year
Model
RMW2.5G28

*Ask Brian about the AR RMW2.5G28. Sorry, no repair questions:


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  2 Questions
Q: What replacement pump would I get for a Troy Built (020344) power washer.? 2800 psi
by Bruce from Ohio on June 14, 2015

A: In order to make sure it is compatible with you machine you need to be sure of a few things.
1. Engine shaft diameter size
2. What is the HP or CC of your motor
3. The number of bolt holes your pump has
4. Whether your pump is horizontally or vertically mounted
After knowing those things we can better assist you in which replacement pump is right for you.

by Brian, Product Expert
Q: What replacement pump do you recommend for my Gas powered Huskey Pressure washer. The original pump is a 2.3 GPM / 2600 PSI pump. And it is attached to a vertical shaft Honda motor.

Will the AR 2800 PSI 2.5-GPM 7/8" Hollow Shaft Vertical Replacement Pressure Washer Pump w/unloader fit this?

Also is this a better quality pump than the one it originally came with? The one it came with worked perfect three times and never worked again. I do not need another like that!

Thank you.

by Todd on February 25, 2012

A: This AR pump model RMW2.5G28 should be compatible with your machine. However, you would need to verify that your engine has a 7/8" vertical shaft and the current pump uses 3 bolts to attach the pump.

As long as your current set up meets these specs then this pump will work.
by Brian, Product Expert
AR RMW2.5G28 Reviews & Ratings
Overall Rating
Features
5/5
Quality
5/5
Performance
5/5
Value
5/5
Overall
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5
Pros
I'd Buy It Again (1)
High Quality (1)
Exceeded Expectations (1)
Price (1)
Cons
None to display.
100% of respondents would recommend this product to a friend
11 Reviews  Sort by 
 
William P.
Thurmont, MD
Purchased from Pressure Washers Direct
Purchased 6/10/16
Most Helpful Positive Review
REVIEWED
JUL.
28
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Ar2800 Psi 2.5gpm Hollow Shaft Vertical Replacement Pump
So far so good. I have a TroyBilt washer with a Honda 160cc motor. I had it stored for a few years, but not properly. The pump would not produce any pressure. I researched and found PW Direct. I ordered the pump with a little more pressure. It arrived fast and well packaged.

The inlet and outlet lines now face to the front of the machine, which I actually prefer. It is easy tilting the machine back to install the hoses. First attempt would stall the motor.

I emailed customer... more
William Recommends This AR Product
Was this review helpful?
00
Bruce W.
Purchased from Pressure Washers Direct
Purchased 5/8/16
REVIEWED
JUN.
23
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Good Replacement
Wore out the cheap plastic pump that came on a Troy-Built 2200 psi pressure washer. Found this pump as a replacement. It bolted right in place no problems.

It is the limit of what I would put onto a 5 Hp engine. Engine is working hard with a 1.3 gpm tip.
Bruce Recommends This AR Product
Was this review helpful?
00
Doug D.
Vincennes, IN
Purchased from Pressure Washers Direct
Purchased 3/9/16
REVIEWED
APR.
21
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Just What I Needed
Got the part ordered and delivered in a fast and efficient manner. Works as it should.
Doug Recommends This AR Product
Was this review helpful?
00
Robert C.
Thomaston, AL
Purchased from Pressure Washers Direct
Purchased 3/2/16
Total Reviews
3 Reviews
REVIEWED
APR.
15
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Pump Works
This pump works as advertised.
Robert Recommends This AR Product
Was this review helpful?
00
Isaac C.
Tilden, TX
Purchased from Pressure Washers Direct
Purchased 1/12/16
REVIEWED
FEB.
03
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Excellent Website
Website provides excellent information in selecting correct pump to avoid common mistakes in pump selection.
Isaac Recommends This AR Product
Isaac's Experience With Pressure Washers Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"Good customer support and information on avoiding mistakes in choosing the correct pump."
 more
Was this review helpful?
00
Johnnie B.
Hephzibah, GA
Purchased from Pressure Washers Direct
Purchased 10/16/15
REVIEWED
NOV.
09
2015
4 out of 54 out of 54 out of 54 out of 54 out of 5
Great Pump
Pump works great. Service was exceptional.

I highly recommend this site!
Johnnie Recommends This AR Product
Was this review helpful?
00
Howie
REVIEWED
JUL.
23
2012
5 out of 55 out of 55 out of 55 out of 55 out of 5
Replacement Pump
This was my first purchase from Pressure Washers Direct. Pump arrived in a few days. It was exactly as described on the web site. Quick and easy to install. Great Job PWD.
Was this review helpful?
40
Tom H.
South Pittsburg, TN
Purchased from Pressure Washers Direct
Purchased 7/3/13
REVIEWED
JUL.
31
2013
4 out of 54 out of 54 out of 54 out of 54 out of 5
Easy To Install
I received my replacement pump on time as you predicted, it was easy to install.

I have well water instead of city water which makes a big difference in the pressure and it took it just a few minutes to get caught up (pressure wise) but when it did, it was on and never let up. It did an excellent job. I am very pleased so far.

I have yet to put it through the paces of cleaning the siding on my house but that is coming up soon. It is still brand new and only time will tell- but so far, I... more
Tom Recommends This AR Product
Was this review helpful?
30
John W.
Marryville, TN
Purchased from Pressure Washers Direct
Purchased 4/6/15
REVIEWED
MAY.
19
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Direct Replacement
The pump identical in fit to the factory model. All components connected without a problem. In use the pump has good performance.
John Recommends This AR Product
Was this review helpful?
00
Jim Nason
Simsbury, CT
Purchased from Pressure Washers Direct
Purchased 8/17/14
REVIEWED
SEP.
07
2014
5 out of 55 out of 55 out of 55 out of 55 out of 5
Works Well
The unloader valve took a few minutes to wake up, but once it did, the pump worked fine on my Honda 5.5 horsepower engine,
Jim Recommends This AR Product
Was this review helpful?
00
Karen F.
Yorktown, VA
Purchased from Pressure Washers Direct
Purchased 8/5/14
REVIEWED
AUG.
16
2014
5 out of 55 out of 55 out of 55 out of 55 out of 5
Excellent Quality, Fast Shipping!
Excellent Quality, Fast Shipping! I bought it twice! Plus more items.
Pros: Price, Exceeded Expectations, High Quality, I'd Buy It Again
Karen Recommends This AR Product
Karen's Experience With Pressure Washers Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"Quality Price, Best Price I found around."
 more
Was this review helpful?
00
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