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The Pressure-Pro fully plumbed cat 66 dx 4000 psi 4 gpm replacement pump w/ pulsar ez plumbing kit is available for purchase today.

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Pressure-Pro Fully Plumbed CAT 66 DX 4000 PSI 4 GPM Replacement Pump w/ Pulsar EZ Plumbing Kit

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Pressure-Pro Pressure Washers and AccessoriesModel: SLP66DX40-308
(Based on expert analysis, manufacturer ratings and customer reviews)

4.9 out of 54.9 out of 54.9 out of 54.9 out of 54.9 out of 5
11 Reviews
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  • Features
  • Specs
  • 2
    Q&A 
  • 11
    Reviews
  • Articles
  • Shipping
  • Accessories
Grade
Style
Why Repair A Worn Out Pump?
Fully Plumbed are ready to go - 4 bolts off - 4 bolts on.
Get a great quality replacement assembly for less than a repair

CAT Brand Pump Assembly Is Ready To Install
Comes with unloader, pressure relief valve,
pressure washer hose plug, and garden hose inlet w/ filter

Pulsar EZ Unloader
Eliminates back pressure when pulling a manual start engine
Adjust the pressure to suit the task at hand

Powerful And Versatile
Ideal for 9 to 13 HP engines
Will push 4 gallons per minute up to 4000 PSI

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


Need Help? Ask Our Snow Blower Experts.
Pump
Pump Brand
Cat
Pump Type
Triplex Plunger
Adjustable Pressure
Yes
Accessories
Accessory Grade
Professional
Accessory Style
Gas
Rated PSI
4000 PSI
Overview
Made in USA
Yes
Weight
26.15 Pounds
Product Length
10 Inches
Product Width
9.96 Inches
Product Height
8.5 Inches
Consumer Warranty
5 Years
Commercial Warranty
5 Years
Model
SLP66DX40-308

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  2 Questions
Q: I am looking for a pump to fit a Honda GX340 .
by Dennis Lillrose from Michigan on March 08, 2016

A: You have chosen a perfect pump to go on your Honda GX340 engine. This is fully plumbed meaning the inlet and outlet fittings, unloader, external bypass, and thermal relief valve are already installed so all you will have to do is bolt on the new pump, set the unloader, and you are ready to go!
by Brian, Product Expert
Q: What is the difference between the replacement pump cat 66 dx and the 67 dx 4000 psi pumps ?
by Cullen Bryant from South Carolina on March 02, 2015

A: The 66DX pump is a much higher quality pump. The unit has external bypass, allowing the pump to run cooler and provide a longer service life. Both pumps will fit the Honda GX390.
by Brian, Product Expert
Pressure-Pro SLP66DX40-308 Reviews & Ratings
Overall Rating
Features
5/5
Quality
5/5
Performance
5/5
Value
5/5
Overall
4.9 out of 54.9 out of 54.9 out of 54.9 out of 54.9 out of 5
Pros
I'd Buy It Again (1)
High Quality (1)
Exceeded Expectations (1)
Easy To Use (1)
Cons
Clearance Less Than 18 A... (1)
100% of respondents would recommend this product to a friend
11 Reviews  Sort by 
 
Brian, the Pressure Washer Expert
Pressure Washer Expert

Product Expert
Total Reviews
122 Reviews
Total Helpful Votes
5401 Helpful Votes
Pressure Washers Direct Recommended

As we said in the "Better" recommendation, both these pumps would be a good choice for a replacement or upgrade to a high quality pressure washer.

The triplex pump can push more water, and push it harder than axial cam pumps; and the ceramic plungers run cooler so they last longer. They can also be rebuilt, which protects your investment.

Be sure to check the installation guide for each pump and measure carefully to make sure it will fit your unit properly.
Brian Recommends This Model
Was this review helpful?
249
Paul W.
Jeffersonville, IN
Purchased from Pressure Washers Direct
Purchased 3/3/16
Total Reviews
2 Reviews
Most Helpful Positive Review
REVIEWED
MAR.
30
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Another Great Cat Product
Purchased to replace a worn out pump. Bolted right up. It came full of fluid and with a new keyway for the engine!

Great product and purchased from a great company. Always willing to answer your questions! Thanks!
Paul Recommends This Pressure-Pro Product
Paul's Experience With Pressure Washers Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"Website is great. They always answer your questions and they always have the best price. What more could you ask for? Thanks for all your help. Next on the list is a concrete surface cleaner."
 more
Brian, the Pressure Washer Expert
Product Expert
Paul,
You are very welcome- we appreciate your business!
Was this review helpful?
10
Mike S.
Springtown, TX
Purchased from Pressure Washers Direct
Purchased 6/21/16
Total Reviews
2 Reviews
REVIEWED
AUG.
05
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great Pump
The only complaint I have is that the pump itself comes with a male quick connect and my old pump had a female. The problem is that moving the wand while using it, it starts leaking and will change this out to a female connect at the pump.

My pump has worked great, I do notice that I get some mist out of the plastic port on the back, if I set it down for a few minutes, guess it suppose to do that and wish the pump came with a female quick connect on the pump instead of a male. I just... more
Mike Recommends This Pressure-Pro Product
Brian, the Pressure Washer Expert
Product Expert
Mike,
There may be an o-ring or washer that may be the shape of the old pump, and isn't making a tight seal with the new pump connections. A new connector may help clear up the misting issue.
more
Was this review helpful?
00
Mike S.
Springtown, TX
Purchased from Pressure Washers Direct
Purchased 6/21/16
Total Reviews
2 Reviews
REVIEWED
JUL.
16
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Replacement Pump
I replaced my Karcher pump with this CAT pump and can notice the difference. The pump cost more than my Honda motor and Karcher unit, but I believe it is worth it,.

Time will tell, only used it for a short period, but very pleased.
Pros: Easy To Use, Exceeded Expectations, High Quality, I'd Buy It Again
Cons: Clearance Less Than 18 After I Moved Honda Motor
Mike Recommends This Pressure-Pro Product
Mike's Experience With Pressure Washers Direct
Web Site
5/5

Service
5/5

Shipping
4/5
"Works great, no problems, long owed it just a short time, but researched the pump before I purchased it, reviews on this pump were good."
 more
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00
Emil V.
Wanaque, NJ
Purchased from Pressure Washers Direct
Purchased 3/12/16
REVIEWED
APR.
13
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great Pump
The only thing wrong is the little screw that goes through the side of the pump and sits in the groove of the shaft. It's way too small. I had to buy one at the hardware store 3 times the size they give you to make it work.
Emil Recommends This Pressure-Pro Product
Was this review helpful?
00
Tom
Dwight, NE
Purchased from Pressure Washers Direct
Purchased 7/24/12
Total Helpful Votes
11 Helpful Votes
REVIEWED
AUG.
21
2012
5 out of 55 out of 55 out of 55 out of 55 out of 5
Good Product
Great company, fast delivery, good product.

Made my power washer a super washer.
Was this review helpful?
110
Ron N.
Aliceville, AL
Purchased from Pressure Washers Direct
Purchased 6/1/15
REVIEWED
JUN.
25
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Quality Replacement Pump
I ordered this pump to replace one that needed rebuilding. We had it unboxed and installed in just a few minutes. It works great with good pressure.
Ron Recommends This Pressure-Pro Product
Was this review helpful?
70
Ernest R.
Manning, SC
Purchased from Pressure Washers Direct
Purchased 6/15/15
Total Reviews
2 Reviews
REVIEWED
JUL.
09
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Happy Customer!
I recently purchased the CAT 66 DX 4000 PSI pump and injector system replacing the original pump and injector system on my Generac pressure washer.

There was a huge difference in the Cat performance, they will cost a little more but very much worth it!! I ran a Cat pump on my previous pressure washer for 20 plus years. Cat is the only way to go!! Your service tech dept. is great too!
Ernest Recommends This Pressure-Pro Product
Was this review helpful?
30
Bruce D.
Neshanic Station, NJ
Purchased from Pressure Washers Direct
Purchased 3/24/15
REVIEWED
APR.
14
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Replacement Pump
The purchase of the new pump has turned a marginal tool into a very useful tool. It shipped quickly and was easily installed. I would order from Pressure Washer Direct again when the need arises.
Bruce Recommends This Pressure-Pro Product
Bruce's Experience With Pressure Washers Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"Yes"
 more
Was this review helpful?
42
Russell B.
Springdale, AR
Purchased from Pressure Washers Direct
Purchased 4/21/15
REVIEWED
JUN.
27
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great Pump
I purchased this as a replacement for a worn out Karcher pump. It was an easy bolt on replacement. Fit the Honda GX390 engine perfectly. Works like a champ, and lasts longer.
Russell Recommends This Pressure-Pro Product
Was this review helpful?
32
Dick L.
Martins Ferry, OH
Purchased from Pressure Washers Direct
Purchased 9/21/15
REVIEWED
NOV.
24
2015
4 out of 54 out of 54 out of 54 out of 54 out of 5
Got It Too Late In Season To Use
I cannot use it until spring of 2016 so I don't know if it is going to work with my 11 hp Honda or not.

After I bought it I found out that it should have a 15 hp. engine to properly work. I hope this not the case because then I have wasted my money.
Dick Recommends This Pressure-Pro Product
Brian, the Pressure Washer Expert
Product Expert
Dick,
The folks at Pressure-Pro that put this fully-plumbed kit together tell us that it works great on 9 to 13 HP engines. If your original pump was rated close to 4 GPM and 4000 PSI you shouldn't have a problem.

If you ordered the wrong pump, please give us a call, toll free, at 866-618-9274 to arrange a return. There is a 25% restock fee on unused, returned pumps. You may want to review our Return Policy through this link, or the link at the bottom of our website.

Once you use the pump it can't be returned, but it's still covered by a 1 year Factory Warranty that will expire on 9/25/16. Waiting until Spring of 2016 to install and test the pump will waste about half of your warranty coverage- you may want to take advantage of a mild day and test it out before then.
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01
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