RIDGE WASHER Pressure Washer Undercarriage Cleaner, 16 Inch Under Car Washer with Chemical Injector Bottle, Undercarriage Power Washer with Straight Extension Wand, 4000 PSI
Original price was: $57.99.$45.59Current price is: $45.59.
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Price: $57.99 - $45.59
(as of Mar 31, 2026 21:12:10 UTC – Details)
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RIDGE WASHER
Focus on Heavy-duty Pressure Washer Accessories
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WARM TIPS: If you want to rinse under the undercarriage car washer’s dirt with clean water, please remove chemical bottle first, it allows for faster cleaning; If you want to wash the underside of under car pressure washer attachment with chemical bottles, please install it
STURDY CHEMICAL BOTTLE: Chemical bottle’s made of more wear-resistant and sturdy material. During you use ridge washer undercarriage cleaner, even if bottle is dropped on the ground, and will not break easily, extending usage times
MULTIPLE USAGE SCENARIOS: Power washer undercarriage cleaner’s convenient to clean and avoid crawling under a vehicle. Undercarriage pressure washer’s applicable to clean road grime, oil and under cars, trucks, SUVs, commercial-size vehicles and trailers widely, provides convenience to your life
SUITABLE WORKING PRESSURE: Please make sure your working pressure is HIGHER than 1000 PSI. Under car cleaner’s working pressure range is 1000 PSI to 4000 PSI, it can work better when the pressure’s 2500 PSI or higher. Please make sure your power washer’s pressure valus is appropriate before using car underbody washer
PACKAGE INCLUDE: 1 pcs 16 inch undercarriage washer, 2 pcs 15.7 inch straight extension wand, 1pcs 15.7 inch curved wand, 1pcs chemical bottle, 1pcs black nozzle and 1pcs wash mitt.Their size larger than the same type of under car
Austin –
Not great for low gpm washers but can be greatly improved
Great product. It comes with 4.0 orifice nozzles installed so lower Gpm pressure washers cannot run at a high pressure but still allows soap to be drawn. I have a 1200 psi 1.8 gpm pressure washers so I asked google the ideal orifice size needed for the highest pressure while still being able to create a Venturi effect to pull soap. Google said to use 4 2.0 orifice nozzles. Once I replaced the nozzles I get about 200 psi instead of 50 and I can still draw soap. If you have a similar situation I recommend switching out your nozzles with a different size, however, I would ask an AI the ideal size for your washer (double check the results because it could be wrong). It’s very easy to use otherwise and will work for almost and washer. The price is also amazing; it comes with a soap injector which is extremely useful for states that have enormous amounts of salt thrown on the roads in the winter. I use a salt eliminator and it soaps amazingly through this. Also the wheels are about 5” in diameter so if your car or whatever your using it for is lower than that your cooked.
A. –
Beats laying on the ground
Right out of the box one of the extensions leaked foam and water. Rearranged and the same one leaks. I use a Ryobi 1800 pressure washer, it works fine and did what it should. This isn’t the cleaner that has the replaceable nozzles but it did fine with the foaming action. I ended up mixing more product than water. I’m sure with a dedicated chassis cleaner It would step up the cleaning properties. I have purchased salty captain chassis flush for the next time.
Sam –
Well made and serves its purpose well
Well made and was super easy to put together. Comes with a soap dispenser and separate nozzle as well. This fits and worked great with our pressure washer.
Evan Johanson –
Lack of proper information made this a return
While the description of this product says that it will work with a pressure washer between 1400 and 3400 PSI what it doesn’t tell you is that you need a pressure washer that does 4 gallons per minute at 3400 PSI if you don’t have a heavy duty 4 GPM 3400psi pressure washer then all you will get is a weak 800 PSI stream out of thr jets. The nozzle jets are a 4 GPM rated opening so not effective with a lighter more residential pressure washer I don’t consider this a fault of the seller as all the products I see don’t list what GPM your pressure washer should have alongside the minimum to maximum rated PSI
J Robb –
Car Wash Style Undercarriage Cleaning at Home
For context, I rate products on a simple scale: 5 stars means I love it, 4 stars means I like it, 3 stars is okay, 2 stars means I didn’t like it, and 1 star means I hated it or think it’s unsafe.This undercarriage cleaner for pressure washers is the bees knees. It gives you the same effect you get at those car wash places with the ultimate wash packages. It’s such a great idea to give people the ability to do virtually the same thing at home.It hooks up to the pressure washer easily and is made from quality components. You can rinse the undercarriage with just water, or use the included chemical injector bottle that works like a car wash foam cannon to apply your cleaning solution, which is perfect. The bottle has a metal ball weighted straw which is great. The manifold lets you adjust heating of solution to water that comes out. The device has quick connects. The wheels roll smoothly, and the four individual spray nozzles do a great job covering the underside of the vehicle evenly.This is one of those tools where you use it once and immediately think you should have owned it years ago. It works exactly as intended and makes cleaning the undercarriage fast and easy.Easy 5 stars.
Thousandaire –
Very handy, well made of quality materials
This Ridge Washer pressure washer undercarriage cleaner that I ordered and received is a very useful tool for cleaning the underside of cars, vans, trucks, etc. Every piece of material used in making this product, along with the included accessories appears to be made of rust free material. A magnet was used to test every inch of this product and no attraction was noted. This means that there is no steel in this product or its accessories. Having stainless steel nozzles and extension wands is great. Only high quality products such as this include these accessory items in stainless steel. All of the nozzles and extension wands fit well and were easy to attach and detach. The wheels appear to have quality bearings as they rolled easily. This product may also be useful for cleaning decks and walkways by turning it upside down and having the four nozzles point and spray downward. I haven’t yet tried this, but hope to when the weather warms up. This is really a great value for such a high quality product.I hope you find this review to be helpful.
Savvy Shopper –
Great design.
Works well. Great design. Materials are good. Foam cannon for undercarriage is a great way to apply soap. I use this on my sedan. I want to get a larger one for my truck.
moogie14 –
Powerful Undercarriage Cleaner — Deep Clean Without the Backache!
This pressure washer undercarriage cleaner has completely changed how I wash my vehicle! The 16″ wide design makes it easy to reach hard-to-clean spots under the car that I used to miss with a regular wand. It connects quickly to my pressure washer, and the straight extension wand gives great reach, so I don’t have to crouch or guess where the spray is hitting.The chemical injector bottle is a game-changer — mix your favorite cleaner, and it dispenses evenly while blasting away dirt, mud, and grime. Even after weeks of road dust and winter salt buildup, the undercarriage came out looking much cleaner and fresher with a single pass.The build feels solid, and the spray pressure is strong and consistent (up to 4000 PSI), which makes cleaning efficient and satisfying. Whether you’re prepping for a car show, maintaining a work truck, or want a spotless underside, this tool gets the job done without the usual aches and frustration.If you want a better, easier way to clean under your vehicle, this undercarriage washer is worth every penny. Highly recommended!
Mr. A. W. MacMillan –
Useless for under-carriage foaming, due to the orifice size on the nozzles.