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General Pump Professional 4.0 Orifice Turbo Nozzle

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

4.7 out of 54.7 out of 54.7 out of 54.7 out of 54.7 out of 5
26 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 
  • 26
    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)


Need Help? Ask Our Snow Blower Experts.
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 Snow Blower 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
4.7 out of 54.7 out of 54.7 out of 54.7 out of 54.7 out of 5
Pros
I'd Buy It Again (5)
High Quality (3)
Easy To Use (3)
Fast (3)
Price (2)
Cons
Durability (2)
95% of respondents would recommend this product to a friend
26 Reviews  Sort by 
 
Brian, the Pressure Washer Expert
Pressure Washer Expert

Product Expert
Total Reviews
122 Reviews
Total Helpful Votes
5402 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?
407
David M.
Hot Springs, AR
Purchased from Pressure Washers Direct
Purchased 8/26/16
Total Reviews
2 Reviews
Most Helpful Positive Review
REVIEWED
SEP.
21
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Powerful !!
Works great! Increased the cleaning power! Works Great!
David Recommends This General Pump Product
Was this review helpful?
10
Michael F.
Belvidere, NJ
Purchased from Pressure Washers Direct
Purchased 7/2/16
Most Helpful Critical Review
REVIEWED
JUL.
28
2016
1 out of 51 out of 51 out of 51 out of 51 out of 5
Dissatisfied With Nozzle
Purchased turbo nozzle and was very impressed with how it was working. Worked what I thought was great for 5 houses. Then it stopped spinning i assume hard water deposits. I soaked it with wd40 several times. No luck.

Purchased another one and on the first day my employee didn't click the nozzle fully in and it flew out when we activated it. The second nozzle stopped working when it hit the ground. Now I have 2 nozzles that don't work.

Now I had the opportunity to check the houses I... more
Brian, the Pressure Washer Expert
Product Expert
Michael,
Turbo nozzles are very good at removing dirt & stains from nooks and crannies in durable surfaces like concrete and pavers since they produce a powerful, focused spray. They are usually too strong for softer surfaces like brick and vinyl.

They also work well blasting seaweed off metal pontoons, and getting crud off farm machinery- these are all fairly close up situations.

They really aren't the best at surfaces far away, unless you're after a specific area and then follow up with the regular nozzles- different tools for different purposes.

Turbo nozzles should always be started with the wand facing downward- this prevents the spinning disc inside from getting jammed. I know you didn't mean to shoot it into the ground but turbo nozzles, especially the ones with ceramic inserts, can be damaged by rough treatment.

You may want to check our How-To Library for tips on how to get the best results in various cleaning situations.
more
Was this review helpful?
10
Alexander C.
Purchased from Pressure Washers Direct
Purchased 9/16/16
REVIEWED
OCT.
25
2016
4 out of 54 out of 54 out of 54 out of 54 out of 5
Not As Powerful As 0, But Still Has Its Uses
Works well, but definitely not as powerful as the 0. I was hoping that it would be as powerful, as I bought this to remove an incorrectly installed waterproofing membrane on my foundation. Getting the old one off required a massive amount of power. my 0 could do it, but my next size up, 15 did nothing.

This worked for the looser stuff and was definitely much faster, but the hard stuff I still needed my 0.

i also tried this on a small part of my deck just to see how well it worked, and... more
Alexander Recommends This General Pump Product
Alexander's Experience With Pressure Washers Direct
Web Site
5/5

Service
4/5

Shipping
5/5
"Your site was really helpful in that it had both content and reviews with which to choose the right part for my application. Thanks!"
 more
Brian, the Pressure Washer Expert
Product Expert
Alexander,
You are very welcome- I'm glad we could help!
Was this review helpful?
10
Theresa M.
Hesperus, CO
Purchased from Pressure Washers Direct
Purchased 10/21/16
Total Reviews
2 Reviews
REVIEWED
NOV.
17
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Excellent Nozzle, Worth The Money
Don't know what makes this work so good, but it does. Use it to wash livestock trailers out and it cleans them very fast and very efficiently!!

With the pressure and volume it does great!!
Pros: I'd Buy It Again, Fast, High Quality
Theresa Recommends This General Pump Product
Brian, the Pressure Washer Expert
Product Expert
Theresa,
There is a small disk with a tiny offset hole inside the nozzle head. The water pressure makes the disk turn very, very fast. The concentrated, spinning stream of water gets into nooks and crannies, scrubbing durable surfaces.

Please be careful using a turbo nozzle on any painted finishes- if you get too close you can damage the paint. Testing in an inconspicuous area will let you gauge how far away to stand for best results.
more
Theresa's Experience With Pressure Washers Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"The information, shipping and what appears to be excellent customer service was excellent and very prompt."
 more
Was this review helpful?
00
Joseph L.
Purchased from Pressure Washers Direct
Purchased 6/12/16
REVIEWED
JUL.
07
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Works Great
Used it for the 1st time, had great results.

Great service, very happy with my purchase.
Joseph Recommends This General Pump Product
Was this review helpful?
11
Michael I.
Cedar Springs, MI
Purchased from Pressure Washers Direct
Purchased 5/24/16
REVIEWED
JUN.
17
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Well Worth It
I've always wanted a turbo nozzle for the pressure washer I purchased from you two years ago. And finally broke down and bought one, and couldn't be happier.

The son of a gun works well for concrete, decks and vehicles ( adjust pressure of course). Another tool well worth having.
Michael Recommends This General Pump Product
Michael's Experience With Pressure Washers Direct
Web Site
4/5

Service
4/5

Shipping
4/5
"I love the product I purchased through Direct, but didn't like the was it was shipped in a bag. I work for a large delivery service and I know how rough the packages get tossed around. I would have preferred it been packed in a box with bubble wrap."
 more
Brian, the Pressure Washer Expert
Product Expert
Michael,
I will make sure our warehouse manager sees your comment; since you're in the business you know wrapping and boxing the nozzle will add to the cost.
Was this review helpful?
11
Steve A.
Mobile, AL
Purchased from Pressure Washers Direct
Purchased 5/21/15
Total Reviews
2 Reviews
REVIEWED
MAR.
26
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Turbo Nozzle Is The Man!
I bought the General Pump Turbo Nozzle to go with my new pressure washer and it is awesome.

A must-have accessory, especially for concrete pressure washing like sidewalks, driveways, garage floors, patios, etc. It makes pressure washing these items a breeze.
Steve Recommends This General Pump Product
Steve's Experience With Pressure Washers Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"Quick shipping, excellent seller. Informative emails as well."
 more
Was this review helpful?
01
Leo V.
Brookshire, TX
Total Reviews
2 Reviews
REVIEWED
FEB.
01
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Quality Product
Works great. Works better for large areas of concrete than anything else.
Leo Recommends This General Pump Product
Was this review helpful?
04
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
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?
83
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
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