RIDGE WASHER Pressure Washer Undercarriage Cleaner with Foam Cannon — 16.1" Wand, 1500–4000 PSI Compatible

RIDGE WASHER Pressure Washer Undercarriage Cleaner with Foam Cannon is a complete underbody cleaning kit that attaches to most gas and electric pressure washers to blast away road grime, oil and salt without crawling under the vehicle.

Keep the underside of cars, trucks and trailers free of corrosive buildup and dirt with a purpose-built undercarriage wand and foam lance. This kit bundles a 16.1" undercarriage washer, two straight extension wands, one curved wand, a foam cannon, a black spray nozzle and four larger brass undercarriage spray tips. Designed for use with pressure between 1500–4000 PSI (optimal around 2500 PSI+), it saves time and reduces physical strain compared with manual scraping or getting beneath a vehicle.

How do I connect the RIDGE WASHER to my existing pressure washer?

There are three practical connection methods so you can match your setup and cleaning needs. Choose the stainless steel small-aperture nozzle for simple spray-only undercarriage work, or the brass large-aperture nozzle when using the foam cannon to avoid leakage. Follow the wand and gun thread fittings on your washer; adapters may be needed for uncommon fittings.

• Option 1: Pressure washer gun → pressure washer wand → undercarriage attachment (stainless small nozzle).
• Option 2: Pressure washer gun → foam cannon → wand → undercarriage cleaner (brass large nozzle for foam).
• Option 3: Foam lance attached directly to black soap nozzle tip for concentrated foam application.

What pressure and flow conditions work best with this undercarriage cleaner?

The RIDGE WASHER performs across a broad range but requires at least 1500 PSI to operate safely and effectively. For the most efficient removal of stubborn grime, aim for 2500 PSI or higher and a compatible flow rate. Running below the minimum pressure increases the chance of ineffective cleaning and can lead to leaks when paired with the foam cannon and smaller nozzles.

• Acceptable range: 1500–4000 PSI.
• Recommended: 2500 PSI or above for heavy buildup.
• Confirm your washer’s flow rate and nozzle compatibility to maintain seal integrity.

Which surfaces and vehicles is this undercarriage washer suitable for?

This undercarriage tool is built for a wide set of vehicles and heavy equipment, making it a versatile choice for home garages, small fleets and detailing shops. It reaches across axles, frame rails and around suspension components without requiring you to lie under the vehicle. Use with appropriate soaps and degreasers through the foam cannon for improved loosening of oil and road film.

• Works on cars, SUVs, trucks, trailers and commercial vehicles.
• Foam cannon helps dissolve oil, road salt and grime before rinse.
• Long wands and curved section access hard-to-reach areas safely from the side.

Who is this for? The RIDGE WASHER kit is ideal for vehicle owners and detailers who want a safer, faster way to clean undercarriages without ramps or lying on the ground. It’s also well-suited to fleet managers and weekend mechanics who need a durable, multi-connection tool that pairs with common pressure washers. If you frequently remove road salt, grease or mud from under vehicles and prefer using foam for pretreatment, this kit provides the attachments and spray options to streamline the job.

Package contents: 1 × 16.1" undercarriage washer, 2 × 15.7" straight extension wands, 1 × 15.7" curved wand, 1 × foam cannon, 1 × black pressure washer spray nozzle, 4 × brass undercarriage sprayer nozzles (larger than typical tips).

Warm tips: For simultaneous foam and undercarriage use, attach the brass large-aperture nozzle to avoid leakage; the small-diameter stainless nozzle can cause leaks at the foam cannon junction. Ensure your washer exceeds 1500 PSI before use.