Westinghouse Universal 16" Pressure Washer Undercarriage Cleaner and Water Broom Attachment - 4400 PSI, 1/4" Connector - for Gas and Electric Pressure Washers
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Availability:
In Stock.
Arrives
Jul 26 – Jul 27
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Style: Undercarriage Cleaner
Features
- Dual function undercarriage cleaner and water broom; The undercarriage cleaner removes dirt, oil, salt, fuel and more from the exposed underside of trucks, cars, SUVs, RVs, trailers and more; Water broom mode is great for removing debris from flat surfaces like garage floors, driveways, pavements, and patios
- The Westinghouse PWUC 16 has 4 nozzles, max 4400 PSI and can be used for both cold water and hot water up to 194 F; All parts have M22 1/4" quick connectors for easy use and is compatible with most gas and electric pressure washers
- Protect, clean and extend the life of your vehicles by keeping undercarriage parts free of dirt and damaging corrosion; Keeps your outside surfaces and walkways clean and safe from dirt, mud and oils that could be a hazard
- Not only is it super effective for cleaning wide surfaces and hard to reach areas, its ergonomically designed for easy and comfortable use; The long, curved extension wand allows you to easily reach under vehicles, and durable right-sized wheels make it very maneuverable
- Light, durable and versatile, this attachment includes a 180-day customer warranty from Westinghouse, known for providing quality products to Americans for over 100 years
Description
Now you can easily care for the important undercarriage of your vehicle which is exposed to salt, oils, and grime. No wash is complete without the Westinghouse PWUC 16” Water Broom/Undercarriage Washer. Dual function designed for easy and ergonomic cleaning of undercarriages to keep them clean and corrosion-free and for easily keeping flat surfaces like garage floors, driveways and walkways clean and safe. So after you knock all the gunk and grime off your car, truck, SUV RV, or trailer you can easily blast it off your driveway. Done and done. This powerful dual-function 16-inch pressure washer attachment has a total of 4 nozzles with a maximum pressure of 4,400 PSI. Easy All parts have M22 1/4" quick connectors for easy use and is compatible with most gas and electric pressure washers. Light, durable and versatile, this attachment includes a 180-day customer warranty from Westinghouse, known for providing quality products to Americans for over 100 years.
Brand: Westinghouse
Power Source: manual
Color: Black
Item Weight: 4 Pounds
Hose Length: 35 Feet
Specification Met: CE, CSA
Product Dimensions: 16.9"L x 5.1"W x 5.1"H
Maximum Pressure: 4400 Pound per Square Inch
UPC:
Number of Items: 1
Item Weight: 4 Pounds
Hose Length: 35 Feet
Item Dimensions L x W x H: 16.9"L x 5.1"W x 5.1"H
Power Source: manual
Maximum Pressure: 4400 Pound per Square Inch
Specification Met: CE, CSA
Color: Black
Brand Name: Westinghouse
Model Number: PWUC
UPC: 850032657358
Manufacturer Warranty Description: 180-Day Limited Warranty
Manufacturer Part Number: PWUC
Unit Count: 1.0 Count
Item Type Name: Pressure Washer Accessories
Manufacturer: Westinghouse Outdoor Power Equipment
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jul 26 – Jul 27
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Style: 3400 Max PSI
I bought this pressure washer after considering a plethora of different makes and models, including the option of electric vs. gas powered. I am glad I chose gas, and I'm glad I chose this Westinghouse WPX3400. I chose gas because it is much more powerful than electric, and I chose Westinghouse because they have a decent reputation, and the WPX3400 because that was the best "Max Pressure to Cost" ratio. I have used at least a half-dozen different pressure washers, mostly gas-powered, but never owned my own. Now that I have a property that I need to maintain myself, I believe it was WELL WORTH the price of this machine to be able to take on the significant number of tasks and projects that would require a Pressure Washer. The assembly was simple. Just a couple nuts and bolts to screw in (clearly labeled in the manual with pictures), and the top handle just slides on - no tools or bolts required. Great design. Starting Up: I thought that this Pressure Washer was a little flaky on the VERY FIRST USE. It took several pulls to start, and it stalled out on me. However, EVERY USE after the first, it has started up on the FIRST PULL! Seriously. If you buy this, expect your first startup to be a little rocky, but just let it do its thing - it'll either stall or you'll power it down... After the first use, expect every single use to start on the first pull, every time. That's how good I feel about this machine, after a small sample size of uses (~20 times). CAVEAT: If you are going to own and care for a Pressure Washer, you need to understand how to do things the right way. What I wrote above, about this machine starting up smooth every single time (from the second use on), will only be true if you care for the machine correctly. First, get yourself some 4-stroke engine oil as well as some "pump protector". Both of these items should be in the single-digit dollar amount. You will want these on hand because at some point you will need to: 1. Add more oil (or change the oil), and 2. Clean it thoroughly and protect the engine if storing it for any length of time. Second, read the manual in entirety, it's not long. If you're one of those people who throws away the manual without glancing at it and says "I got this", nobody thinks you're cool, and you might miss a potential quirk unique to a machine that will ruin your investment if you don't know about it. I won't summarize the manual here but I will touch upon two key things you need to be sure of before buying/using a gas powered machine like this WPX3400. - Be liberal with the "sample oil" included inside the box. I'd say use about 3/4 of the entire bottle, if not more. Use the dipstick to check the fill reading, and keep adding a few pours until it's at the right fill. - Connect your garden hose to the outdoor spigot and run the water for a few minutes before connecting it to the WPX3400. You want the hose full of water and not have any air pockets spurting out. Once the flowing end of the hose is pouring solidly, turn the spigot back off. - With the spigot turned off, connect the other end of the hose to the WPX3400. Go back and turn the spigot back on. With water now flowing directly to the machine, follow the startup procedure written in the manual, the basics being: Turn Power On; Turn Fuel Valve to On Position; Make sure engine is in "Choke" position; and give the ripcord a solid tug. If it doesn't start by the fourth or fifth pull, turn the water off and reassess. A few other helpful tips: - Once you get the machine running for the first time, don't worry about a stall or some slight oil burn. You want that first use to be continuous water spraying for several minutes. - On each successive Power Washing Session - you ALWAYS want to have the water spraying out of the nozzle at all times. If you need to let go of the nozzle trigger for any reason, try to get your finger back on that trigger as soon as you can. Ideally, you want to be continuously spraying water from the nozzle the entire time you are washing. Yes, this might seem like a waste of fresh water, but this is how you care for your investment. Instead of letting go of the trigger, move the nozzle away from your target and spray at the ground or into the air, and keep doing so until you are ready to spray your target area again. - If you know that you'll need to stop spraying for longer than 20-30 seconds, STOP what you are doing and TURN THE ENGINE OFF. - That might sound a little crazy, but this will preserve the engine life and performance. - Don't ever leave the engine running without spraying through a pressurized nozzle for more than 30 seconds. - If you need to stop your work for longer than that, turn off the engine; move the fuel switch to off and the engine switch back to "choke", then turn the water off at the Spigot. Disconnect the hose from the WPX3400, then pull the trigger on the nozzle to release any remaining pressure. - Do not attempt to change the spray nozzle until you have released all pressure.
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Reviewed in the United States on June 3, 2024 by Vintage Troisi
Style: 3400 Max PSI
It was very quick and easy to assembly. Bought it for my driveway, RV pad and very long sidewalk. It works very well just as described in the instructions...easy to start, easy to use and made the cleaing job much easier
Reviewed in the United States on February 2, 2026 by Mark R
Style: Undercarriage Cleaner
Assembly is fast and easy. Small and light but works well. love the solid wheels!
Reviewed in the United States on January 30, 2026 by Michael LaVoie
Style: 3400 Max PSI
The size, functionality, and chassis orientation are very good, and the no-flat wheels are a nice option. As well, assembly is quick and very straight-forward, and the product appears sturdy after assembly. I would prefer a 50' rubber hose with M22 fittings (which I bought separately) to the 25' PVC hose which comes with it, but this is a preference rather than a requirement. Also, the spray gun seems a bit less sturdy than I expected but should work fine for my needs. Besides the above commentary, the packaging was very secure.
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Reviewed in the United States on January 3, 2026 by Lori A Kemp
Style: 3400 Max PSI
This item is still new to us, but was easy to put together and cranked up easily. We used it already on the front porch and it did a great job. It has enough power to etch the concrete so you have to be mindful of the nozzles used. This is a relief as our old one (electric) didn’t have much power of course. We look forward to using this for our projects around the house.
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Reviewed in the United States on December 31, 2025 by Lendi R Stuber Lendi R Stuber
Style: 3400 Max PSI
The pressure water arrives on schedule with no damage. It took me approx. 10 min to assemble the unit. I washed my driveway and walkway to my front door. The unit runs smooth and not as noisy as I expected from any pressure water wash unit. It took me almost 3 hours to completely clean the entire section at the front of the house and the unit ran w/o any problem. I am very pleased for now. The unit is very well built and easy to assemble and operate. I ran it for almost 3 hours nonstop and there was absolutely no trip or auto stop like my old pressure water wash unit. the spray wand is solid but light weight makes it a whole lot easier for me to controI. I will update my review after every 6 months to see if the unit can maintain its performance. The pressure water arrives on schedule with no damage. It took me approx. 10 min to assemble the unit. I washed my driveway and walkway to my front door. The unit runs smooth and not as noisy as I expected from any pressure water wash unit. It took me almost 3 hours to completely clean the entire section at the front of the house and the unit ran w/o any problem. I am very pleased for now. The unit is very well built and easy to assemble and operate. I ran it for almost 3 hours nonstop and there was absolutely no trip or auto stop like my old pressure water wash unit. the spray wand is solid but light weight makes it a whole lot easier for me to controI. I will update my review after every 6 months to see if the unit can maintain its performance. The pressure water arrives on schedule with no damage. It took me approx. 10 min to assemble the unit. I washed my driveway and walkway to my front door. The unit runs smooth and not as noisy as I expected from any pressure water wash unit. It took me almost 3 hours to completely clean the entire section at the front of the house and the unit ran w/o any problem. I am very pleased for now. The unit is very well built and easy to assemble and operate. I ran it for almost 3 hours nonstop and there was absolutely no trip or auto stop like my old pressure water wash unit. the spray wand is solid but light weight makes it a whole lot easier for me to controI. I will update my review after every 6 months to see if the unit can maintain its performance. The pressure water arrives on schedule with no damage. It took me approx. 10 min to assemble the unit. I washed my driveway and walkway to my front door. The unit runs smooth and not as noisy as I expected from any pressure water wash unit. It took me almost 3 hours to completely clean the entire section at the front of the house and the unit ran w/o any problem. I am very pleased for now. The unit is very well built and easy to assemble and operate. I ran it for almost 3 hours nonstop and there was absolutely no trip or auto stop like my old pressure water wash unit. the spray wand is solid but light weight makes it a whole lot easier for me to controI. I will update my review after every 6 months to see if the unit can maintain its performance.
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Reviewed in the United States on September 14, 2025 by Amy Pham
Style: Undercarriage Cleaner
Did a great job washing undercarriage of both cars, easy to use and set up!
Reviewed in the United States on February 13, 2026 by Myzith