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General Pump Professional 4.0 Orifice Turbo Nozzle

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General Pump Pressure Washers and Accessories
Model: YR51K40-A
(Based on expert analysis, manufacturer ratings and customer reviews)

4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5
30 Reviews
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GPM 1000 PSI 1200 PSI 1250 PSI 1300 PSI 1500 PSI 1800 PSI 2000 PSI 2100 PSI 2200 PSI
2 4 3.5 3.5 3.5 3.5 3 3 3 3
2.5 5 4.5 4.5 4.5 4 3.5 3.5 3.5 3.5
3 6 5.5 5.5 5.5 5 4.5 4.5 4 4
3.5 7 6.5 6.5 6 5.5 5 5 5 4.5
4 8 7.5 7 7 6.5 6 5.5 5.5 5.5

GPM 2300 PSI 2400 PSI 2500 PSI 3000 PSI 3200 PSI 3500 PSI 4000 PSI 5000 PSI
2 2.5 2.5 2.5 2.5 2 2 2 2
2.5 3.5 3 3 3 3 2.5 2.5 2
3 4 4 4 3.5 3.5 3 3 2.5
3.5 4.5 4.5 4.5 4 4 3.5 3.5 3
4 5.5 5 5 4.5 4.5 4.5 4 3.5

Match your pressure washer's PSI and GPM in blue. The correct orifice size will be listed in the grey area.
  • Features
  • Specs
  • 4
    Q&A 
  • 30
    Reviews
  • Articles
  • Shipping
  • Accessories
Grade
Style
Inflow
1/4
1/4" Snap Coupler (Male)
Outflow
Rotary Spray
Rotary Spray
Increases Cleaning Speed by 50%
For blasting and removing stubborn and encrusted stains
High-pressure pencil jet rotating at 3000 RPMs

Quick-Connection Plug Included
Included one male 1/4" plug with Quick Connect (AL-PLUG 1/4mB)
Simply snap turbo nozzle into your 1/4" quick-connect lance

Pressure Rating
Maximum pressure of 5100 PSI (350 Bars)
Minimum pressure needed is 2600 PSI
Maximum temperature of 212F

Compatibility
Fits most professional-grade gas power washers
NOT designed for electric or consumer-grade pressure washers

Shock-Resistant
Internal stabilization springs protect ceramic nozzle from damage
This Product is a Kit and contains the following items
1 x AR 1/4" Quick-Connect Plug (1/4" Male End) (AL-PLUG1/4MB)
1 x General Pump 4.0 Orifice Turbo Nozzle (Professional Gas) (YR51K40)


Accessories
Accessory Grade
Professional
Accessory Style
Gas
Inflow
1/4" Snap Coupler (Male)
Outflow
Rotary Spray
Rated PSI
5100 PSI
Overview
Weight
1 Pound
Product Length
4 Inches
Product Width
2 Inches
Product Height
2 Inches
Consumer Warranty
30 Days
Model
YR51K40-A
Download Documents
No documents available at this time
Need Help? Ask Our Experts.
View Accessories For This Product
Read Reviews
How-To Library
YR51K40 Specs
Accessories
Accessory Grade
Professional
Accessory Style
Gas
Inflow
1/4" Snap Coupler (Male)
Outflow
Rotary Spray
Rated PSI
5100 PSI
Overview
Weight
1 Pound
Product Length
4 Inches
Product Width
2 Inches
Product Height
2 Inches
Consumer Warranty
30 Days
AL-PLUG1/4MB Specs
Accessories
Accessory Grade
Prosumer
Accessory Style
Gas
Inflow
1/4" Threaded (Male)
Outflow
1/4" Snap Coupler (Male)
Rated PSI
4000 PSI
Overview
Weight
0.1 Pounds
Consumer Warranty
1 Year
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  4 Questions
Q: For turbo nozzle you have the comment: Will not fit Simpson or Generac spray wands

Do you mean the gun because it has a M22 connection or it won't fit the was with quick release at the end.

Thanks,

by Eric from South Carolina on April 25, 2015

A: No, that is a mistake on our website. This unit will fit those models. The issue is the Generac and Simpson quick connect couplers are to shallow to accept the standard 1/4" quick connect plugs. However, the plug being used with this will fit those units.
by Brian, Product Expert
Q: Hello Bill, I have a honda gx340 11hp petrol motor couple to a nilfisk/gerni pump 35l/min at 250bar (9.23Gal/m 3600psi) Can you suggest a turbo nozzle for this unit..?


by Mal from Hawaii on March 30, 2012

A: You would need a 10.0 size nozzle. I am posting a link below to the nozzle we carry on our site in this size:

10.0 Shark Turbo Nozzle
by Brian, Product Expert
Q: Is a 4.0 orifice on a General Pump turbo nozzle correct for a Simpson PS4240H-SP pressure washer? Does the Simpson PS4240H-SP come with a 1/4" quick connect on the lance?
by Rod from California on October 08, 2011

A: Yes, the 4.0 size orifice is the correct size for that pressure washer. In regards to the lance, yes it comes with a standard 1/4" quick connect connection on the end of the lance.
by Brian, Product Expert
Q: How do I find out what GPM my machine is? What is GPM?
by Jeffrey Helwig from New Hampshire on August 04, 2011

A: The gpm is the max gallons per minute that the pump is capable of putting out. This rating should be listed on the pump and/or frame of the pressure washer.
by Brian, Product Expert
General Pump YR51K40-A Reviews & Ratings
Overall Rating
Features
4/5
Quality
4/5
Performance
4/5
Value
4/5
Overall
4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5
Pros
I'd Buy It Again (7)
Fast (6)
Easy To Use (5)
High Quality (5)
Price (2)
Cons
Durability (2)
Expensive (1)
None (1)
Unreliable (1)
Low Quality (1)
92% of respondents would recommend this product to a friend
30 Reviews  Sort by 
 
Brian, the Pressure Washer Expert
Pressure Washer Expert

Product Expert
Total Reviews
122 Reviews
Total Helpful Votes
6347 Helpful Votes
Pressure Washers Direct Recommended

It's the next step up from our Better recommendation.

The big daddy of turbo nozzles. We have been selling this one since the beginning and it's a favorite year after year for our customers. The nozzle can handle up to 5100PSI And 212 F

The 4.0 orifice is fairly popular, since you want to maximize all the pressure in your washer.

Regardless, you will have to determine the correct orifice size nozzle to purchase based off of your pressure washer's psi and gpm ratings.

Just... more
Brian Recommends This Model
Was this review helpful?
478
John E.
Purchased from Pressure Washers Direct
Purchased 5/24/17
Total Reviews
2 Reviews
Most Helpful Positive Review
REVIEWED
JUN.
17
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Worth Every Penny!
This nozzle does a fantastic job of cleaning, it is FAST, and does NOT leave the little swirl marks like cheaper nozzles.

I got it to clean a concrete parking pad in front of my garage. My house is in the woods, the concrete was almost black from tree sap and dirt. I had put off cleaning it because last time I did it was an all day project. I was hoping this nozzle would help, and did it ever!

I also got a pivoting wand, and adjusted it so it was pointing almost perfectly straight... more
Pros: Fast, High Quality, Easy To Use, Exceeded Expectations
John Recommends This General Pump Product
Was this review helpful?
10
Ray T.
Eureka Springs, AR
Purchased from Pressure Washers Direct
Purchased 5/11/17
Most Helpful Critical Review
REVIEWED
MAY.
11
2017
1 out of 51 out of 51 out of 51 out of 51 out of 5
Product Did Not Work
Product did not work from the very first use.
Cons: Low Quality, Unreliable
Brian, the Pressure Washer Expert
Product Expert
Ray,
Our records show that your nozzle was delivered on 3/31, and when you called us on 5/11 we ordered a replacement nozzle the very same day since you were within the 90 day warranty period. You will get an email with the tracking information as soon as it ships.

We appreciate your business, and apologize for any inconvenience.
more
Was this review helpful?
11
Mark C.
Portage, MI
Purchased from Pressure Washers Direct
Purchased 4/11/17
Total Reviews
2 Reviews
REVIEWED
MAY.
03
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Buy It!!!!!!!!
Buy this!!!!! It save so much time. I used this to clean side walks and driveway that turn black and green. They are bright white now.

Really I can't say enough of how much time it saves and how much better the sidewalks turned out.
Pros: I'd Buy It Again, High Quality, Fast, Exceeded Expectations
Cons: None
Mark Recommends This General Pump Product
Was this review helpful?
10
Christopher H.
Perrineville, NJ
Purchased from Pressure Washers Direct
Purchased 5/30/17
Total Reviews
2 Reviews
REVIEWED
JUN.
22
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Yes, Yes, And Yes
Worth the money. Use this on my 4200psi 4gpm, just awesome power. Only problem is once i get started, I can't stop!
Pros: I'd Buy It Again, Fast, Easy To Use
Cons: Expensive
Christopher Recommends This General Pump Product
Was this review helpful?
00
John C.
Cleveland, OH
Purchased from Pressure Washers Direct
Purchased 6/20/13
Total Helpful Votes
13 Helpful Votes
REVIEWED
AUG.
26
2013
5 out of 55 out of 55 out of 55 out of 55 out of 5
3rd Use
On the 3rd time using the nozzle stopped working. Called and they sent me another one with no problems.
Pros: Easy To Use, Price, Light Weight, I'd Buy It Again
Cons: Durability
John Recommends This General Pump Product
Brian, the Pressure Washer Expert
Product Expert
John,
There's a little disk inside that spins under the pressure, and it can get jammed by a piece of grit from your water supply. If it happens again, you can back-flush the nozzle with water to try and dislodge the jam, or carefully clear it with a thin piece of wire or paperclip.

It helps to regularly check and clear the filter screen where your garden hose attaches to the pressure washer; and try not to lay the wand down where dirt can get into the nozzle.
more
Was this review helpful?
135
Stephen B.
Mercer Island, WA
Purchased from Pressure Washers Direct
Purchased 6/4/14
REVIEWED
JUN.
26
2014
5 out of 55 out of 55 out of 55 out of 55 out of 5
Awesome!
I bought this to compliment my BE 4000 PSI Pressure Washer. Works much better than the tips included.
Pros: I'd Buy It Again, Easy To Use, Price, High Quality
Stephen Recommends This General Pump Product
Was this review helpful?
60
Russ
Purchased from Pressure Washers Direct
Purchased 3/25/14
REVIEWED
JUN.
06
2014
5 out of 55 out of 55 out of 55 out of 55 out of 5
Do It Right The First Time
Great product to clean gum, grease etc. Never use anything else.

Cut your time by more than 1/2. But make sure you select the correct Orifice size to really make a difference. I had been using a 1/2 size bigger for a year and was impressed, but once I got it dialed in it made all the difference.

Keep a rebuild kit on had though, you'll need it. Great product.
Pros: I'd Buy It Again, Fast, High Quality
Cons: Durability
Russ Recommends This General Pump Product
Was this review helpful?
93
Vincent J.
Camden, AR
Purchased from Pressure Washers Direct
Purchased 4/10/11
REVIEWED
MAY.
05
2011
5 out of 55 out of 55 out of 55 out of 55 out of 5
Awesome
This thing is awesome. If you're serious about saving time then this is for you.

Don't know what I did without it.
Was this review helpful?
93
James R.
Surrency, GA
Purchased from Pressure Washers Direct
Purchased 2/9/13
Total Reviews
2 Reviews
Total Helpful Votes
14 Helpful Votes
REVIEWED
FEB.
15
2013
5 out of 55 out of 55 out of 55 out of 55 out of 5
Does A Super Good Job
Got the 4.0 General turbo nozzle today. It arrived on schedule, as has the Dewalt 3800 3.5 GPM washer.

This nozzle does a super good job. It's too early to tell if it will hold up, but if so I will stay with this one.
Was this review helpful?
61
Robert
REVIEWED
MAR.
12
2012
1 out of 51 out of 51 out of 51 out of 51 out of 5
Sale Pricing Is Not Lying
I tried to buy the Turbo Spray nozzle for the advertise price of $69.99 for the 3.5 orifice size but was on the 4.0 orifice page. When I went to the 3.5 orifice size page, the price was $79.99.

So, I called the company and explained that I could not find the 3.5 orifice size for $69.99. I explained that the 4.0 orifice was listed for $69.99 and they said, well its more money for a bigger size. I said that it is not a bigger size. Its actually smaller. when they finally understood what I... more
Brian, the Pressure Washer Expert
Product Expert
Robert,
The price for the 3.5 AR Pro Turbo nozzle is $79.99. The price for the General Pump 4.0 Pro Turbo nozzle is on sale for $69.99, thanks to an arrangement with the folks at General Pump.

Our arrangement with General Pump will not affect the pricing for AR products, they are different brands.

It's like apples and oranges; different brands can have different pricing. Nozzle pricing within the same brand will usually change by the grade, since a better grade uses heavier duty, more expensive components.

We're sorry we couldn't explain this to you in a way you could understand. You may want to check "How To Pick The Perfect Rotary Turbo Nozzle" in our How-To Library for more information.
more
Was this review helpful?
95
Bob T.
Dartmouth, MA
Purchased from Pressure Washers Direct
Purchased 5/11/11
Total Reviews
2 Reviews
Total Helpful Votes
10 Helpful Votes
REVIEWED
MAY.
19
2011
5 out of 55 out of 55 out of 55 out of 55 out of 5
Perfect For My 3500 Psi
Just stripped some concrete of gum and dirt. The results were phenomenal!

You took the homework out of selecting the proper rotary tip for my unit with your menu. I cannot thank you enough!
Was this review helpful?
40
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