Westinghouse WPX3800 Heavy Duty 3800-PSI 3.6-GPM Cold Water Gas Pressure washer with 5 Spray Tips

Name: Westinghouse WPX3800 Heavy Duty 3800-PSI 3.6-GPM Cold Water Gas Pressure washer with 5 Spray Tips
Brand: Westinghouse
SKU: 5021139129
Price: 629 USD
Availability: InStock
Rating: 4.5 (530 reviews)

4.5

530

At a Glance

Gas

Heavy Duty: 2800 or more

3800 PSI

Pickup

Unavailable

Shipping

Sat, Sep 5

149 available

Delivery

Thu, Sep 10

149 available

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The Westinghouse WPX3800 gas powered pressure washer, with 3800 PSI and 3.6 GPM, is designed to tackle your toughest cleaning jobs with ease. Built with a powerful 4-Stroke OHV Westinghouse engine and a commercial grade triplex brass head pump, it’s meant for powerful heavy duty cleaning. With 5 interchangeable nozzle tips, the WPX3800 has the versatility to handle a variety of situations and surfaces including brick, stone, concrete, wood, aluminum and iron. The 1.3 gallon fuel tank and the high profile pneumatic tires offer easy mobility and maneuverability, allowing you to get into those hard-to-reach places with the toughest grime. Make all your deep-cleaning projects easier than ever before with the Westinghouse WPX3800 pressure washer.

Delivers 3800 PSI of pressure and 3.6 GPM of water flow
5 quick-change nozzle tips: 0°, 15°, 25°, 40°, soap applicator
Commercial grade triplex brass head pump with oil lubrication
COMMERCIAL GRADE PERFORMANCE: 3800 PSI and 3.6 GPM of powerful, deep cleaning water pressure perfect for decks, sidewalks, siding, fences, railings, garage floors, exterior walls, cars and patio furniture with an easy-to-fill 1.3 gallon gas tank
INCLUDES WHAT YOU NEED: 35 foot abrasion resistant Super-Flex hose with lightweight high pressure spray gun and 5 quick connect nozzles (0, 15, 25, 40 degree & Soap) that are compatible with pressure washer accessories such as surface cleaners, undercarriage cleaners, and foam cannons with M22 fittings
POWERFUL WESTINGHOUSE ENGINE: Heavy duty gas powered 274cc 4-Stroke Westinghouse OHV horizontal shaft engine with recoil start - long lasting, commercial grade triplex brass head pump provides 3.6 gallons of water a minute
READY TO ROLL: Tough steel frame construction with 10" high profile pneumatic tires that provide easy transportation and maneuverability; Comes with engine oil, tools, and quick start guide to get you started in minutes
A NAME YOU CAN TRUST: All Westinghouse pressure washers are functionally tested in the factory and may contain minimum residual oil and/or fuel odor; Backed by 3 year limited manufacturer service, labor and parts coverage

General
Start Type	Manual/Pull start	Color/Finish Family	Black
Wheel Material	Rubber	Pump Type	Triplex
Wheel Type	Pneumatic flat-free	Usage	Heavy-duty
Hose Material	Thermoplastic nylon	Type	Pressure washer
Package Contents	Oil, Oil Funnel, Nozzle Tips, Hose, Pro-Style Wand, Wheels	Grade	Commercial/Residential
Nozzle Type	Pro style tips with quick disconnect	Power Source	Gas
Manufacturer Color/Finish	Blue	Series Name	WPX3800 Heavy Duty

Dimensions
Height (Inches)	28	Engine Oil Capacity (oz.)	32
Hose Diameter	5/16-in	Width (Inches)	21
Hose Length (Feet)	35	Depth (Inches)	34
Wheel Diameter (Inches)	10	Battery Amp Hours	0
Cord Length (Feet)	0	Weight (lbs.)	91
Fuel Capacity (Gallons)	1.3	Amperage	0

Features
Adjustable Wand	Yes	Water Temperature	Cold
Soap Applicator Included	No	Variable PSI	No
Integrated Storage	Yes	Flow Rate (GPM)	3.6
Wheels Included	Yes	Number of Batteries Included	0
Pressure Rating (PSI)	3800	Includes Surface Cleaner	No
Interchangeable Wands	Yes	Brushless	No
Engine Brand	Westinghouse	Quick Connect Tips	Yes
Corded/Cordless	Cordless	Number of Spray Tips Included	5
Engine Horsepower	0	Lowe's Exclusive	No
Reconditioned	No	Battery Recharge Time (Hours)	0
Engine Displacement (Cu. Centimeters)	274	Chemical/Detergent Injection	Yes
Water Tank	No	Battery Run Time (Hours)	0
Engine Oil Included	Yes	Recommended Engine Oil	10W-30
Engine Torque (Foot/lbs.)	0	Detergent Tank Options	Single tank

Warranty
Warranty	3-year limited

Certifications
CA Residents: Prop 65 Warning(s)	Prop 65 WARNING(S) -	CARB Compliant	No
Safety Listing	Not safety listed

Miscellaneous
UNSPSC	47121800

Check out the Best Selling Pressure Washers on Lowes.com

Review

4.5 out of 5

530 Reviews

90% Recommend this product

Ratings may include incentivized customer reviews.

Read All Reviews

+ 34

What Customers Are Saying

Customers overwhelmingly praise the pressure washer for its exceptional 3800 PSI power and 3.6 GPM flow, with many noting it cuts cleaning time by 60-75% on driveways, decks, and exteriors. Assembly takes under 15 minutes with clear instructions and intuitive design. Reviewers consistently highlight solid build quality, robust triplex pump, and multiple nozzles for versatility. A few report engine starting difficulty and isolated mechanical issues like loose pump bolts, but the vast majority remain highly satisfied and would recommend it.

Customer review summary generated by AI, including incentivized reviews.

530 Customer Reviews

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Great but hard to restart

First start is ok but very hard to pull they should of had an electric starter on this size. One trick if you run it have to stop it the next time you start it put the throttle half way till it starts. All the other problems you read about with loose bolts have been fixed you can see different color pant marker on each bolt meaning they now have multiple people check each bolt.

SmashAugust 21, 2026
From WPX3800 Heavy Duty 3800-PSI 3.6-GPM Cold Water Gas Pressure washer with 5 Spray Tips

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Looks extremely well built

Would Recommend

Just received my new 3800 psi pressure washer everything looks extremely well built haven't been able to use it yet cause just got it but I'm looking forward to seeing how it works in the future

JRM PasadenaAugust 14, 2026

From westinghouse.com

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86d2VzdGluZ2hvdXNlcG9ydGFibGVwb3dlcg/1ba03580-96f8-5b5a-997c-13dba9514328

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https://photos-us.bazaarvoice.com/photo/2/cGhvdG86d2VzdGluZ2hvdXNlcG9ydGFibGVwb3dlcg/dc9b172a-c792-5abf-ac26-a508c5f07724

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86d2VzdGluZ2hvdXNlcG9ydGFibGVwb3dlcg/d46e89fe-6819-5373-baa4-53ff00bf9d70

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86d2VzdGluZ2hvdXNlcG9ydGFibGVwb3dlcg/6949ecad-7628-5607-ac33-b8055c01d94a

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86d2VzdGluZ2hvdXNlcG9ydGFibGVwb3dlcg/0b5ff427-607b-59cc-90ef-4b16429a8aca

Quick cleaning

Would Recommend

My patio needed this so badly! Really enjoyed the speed of cleaning house exterior. Easy to use. Just wear earplugs!

jibber15August 8, 2026

From westinghouse.com

Clean House

Bought this recently to power was some areas of my house. Works great. Very happy with my purchase.

GWO1August 6, 2026

From westinghouse.com

review

Would Not Recommend

my exhaust manifold gasket melted other wise it works

pcrk3rJuly 29, 2026

From westinghouse.com

Response from eComm

Hello, thank you for letting us know about this. We are genuinely sorry to hear about it. I have passed your feedback along to our quality control tea...

eCommAugust 25, 2026

Economical trustworthy

Would Recommend

I bought this a month ago and it’s been very good pressure. Washer starts first pull every time it does an amazing job at cleaning.

RCFLYERJRJuly 26, 2026

From westinghouse.com

Nice Upgrade for Me

Would Recommend

I bought the WPX3800 as an upgrade from my previous pressure washer, specifically because I wanted higher water flow. Going from 2.4 to 3.6 gallons per minute doesn't sound dramatic on paper, but it's a 50 percent jump, and you feel it immediately in how fast surfaces rinse clean. I've put it through three different jobs so far: soft washing the house exterior, cleaning a wooden deck, and power washing concrete. It handled all three well, which is really the selling point, since most machines a...

rjcarpenterjrJuly 23, 2026

From westinghouse.com

Cleans well

Would Recommend

I bought this a year ago. It has been a good pressure washer so far. I have had a bit of an issue recently with what I believe to be the unloader valve. Hopefully I can get this fixed.

RG2026July 17, 2026

From westinghouse.com

Started right up, easy to use. Had yo adjust the crank pulley but all good now.

PvllprssrwshngJuly 14, 2026

From westinghouse.com

Good Item

I'm just disappointed that a few bolts were lying around, but overall, a good choice. The pressure is fine and good and okay, and I'm still expecting good things from this.

Jeff0202July 12, 2026

From westinghouse.com

4 Questions

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		Ratings	530
		Usage	Heavy-duty
		Pressure Rating (PSI)	3800
		Engine Brand	Westinghouse
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