16" Undercarriage Cleaner Pressure Washer Attachment – 4000 PSI Under Car Washer, Converts to Surface Cleaner

SKU: 85.400.062
Regular price $123.75
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Clean the underside of your vehicle without crawling underneath, jacking it up, or using ramps. This 16" undercarriage cleaner attaches to your pressure washer in seconds and blasts road salt, mud, and grime off the frame, wheel wells, and undercarriage in one pass. Remove the 90° elbow and it reconfigures into a surface cleaner for driveways, patios, and sidewalks — one attachment, two jobs.

  • NO CRAWLING, NO JACKS — Slide the low-profile bar under your vehicle on swivel casters and rinse the undercarriage standing up, without lifting the car.
  • 16" WIDE, 4-NOZZLE SPRAY BAR — Four nozzles fire across the full 16-inch width, covering more of the chassis, frame rails, and wheel wells per pass than a single wand.
  • 4000 PSI, 1500–4000 PSI COMPATIBLE — Works with most residential and commercial pressure washers rated between 1500 and 4000 PSI, 4.0–8.0 GPM.
  • CONVERTS TO A SURFACE CLEANER — Remove the 90° elbow and thread the nozzle directly onto the bar to switch from upward undercarriage spray to downward driveway, patio, or sidewalk cleaning.
  • DURABLE ALUMINUM CONSTRUCTION — Corrosion-resistant frame built to hold up against the same road salt and grime it's designed to rinse away, rated for water up to 140°F.
  • QUICK-CONNECT SETUP — 1/4" quick-connect inlet attaches directly to your existing pressure washer wand — no tools required.
  • Vendor BE Power Equipment
  • Product Weight 3.5 lb
  • max gpm 8
  • min gpm 4
  • number of nozzles 4
  • psi range 1500 - 4000
  • type Undercarriage cleaner
  • vendor part number 85.400.062

There is $8.95 charge for delivery under $75.00 Orders. Additional charges will be imposed by our couriers for delivery to remote area, a surcharge may be levied to cover carriage to these areas.

For direct-to-consumer products, the shipping fee may need to be estimated based on the delivery address. Please call for a shipping estimate.


Undercarriage Cleaning, Without the Crawling

A 16" spray bar built to rinse road salt and grime from the underside of your vehicle from a standing position — and reconfigure into a driveway and patio cleaner when you're done.

Person standing and sliding the undercarriage cleaner bar beneath a parked vehicle

Clean Underneath Without Crawling Underneath

Slide the low-profile 16" bar under your vehicle and rinse road salt, mud, and grime off the undercarriage while standing up — no jack, no ramps, no lying on the ground.

Close-up of the 16-inch spray bar with four nozzles firing an upward fan spray

16" Wide, Four Nozzles Strong

Four 065 MEG nozzles fire across the full 16-inch bar, rated up to 4,000 PSI, so each pass covers more of the frame, wheel wells, and undercarriage than a single wand.

Close-up of a swivel caster wheel on the undercarriage cleaner bar

Glides In on Swivel Casters

Smooth-rolling caster wheels let the bar move side to side and front to back under the vehicle, so you get even coverage without wrestling the attachment into place.

Two-panel comparison showing the 90-degree elbow attached for upward spray and removed for downward spray

One Attachment, Two Jobs

Remove the 90° elbow and thread the nozzle directly onto the bar, and the same attachment sprays downward — ready to rinse driveways, patios, and sidewalks.

Close-up of the aluminum spray bar and quick-connect inlet fitting

Built From Corrosion-Resistant Aluminum

The aluminum frame and 1/4" quick-connect inlet are built to handle the same road salt and grime this attachment is designed to rinse away. Compatible with pressure washers rated 1,500–4,000 PSI, 4.0–8.0 GPM, and water up to 140°F.

FAQ

What's the difference between undercarriage mode and surface mode?

With the 90° elbow attached, the nozzles face upward for cleaning the undercarriage. Remove the elbow and thread the nozzle directly onto the bar, and the nozzles face downward for cleaning driveways, patios, and sidewalks.

What pressure washer do I need to run this?

This attachment is compatible with pressure washers rated 1,500–4,000 PSI and 4.0–8.0 GPM.

Can I use hot water with this attachment?

You can use it with cold and mildly hot water temperatures up to 140°F (60°C).

How do I switch between undercarriage and surface cleaning modes?

Remove the 90° elbow fitting and thread the nozzle directly onto the bar to switch from upward (undercarriage) spray to downward (surface) spray. No tools are required, but it is a manual swap rather than a flip-switch adjustment.

How often should I clean my undercarriage?

In winter or after driving on salted or muddy roads, aim for every 1–2 weeks. Outside of those conditions, less frequent cleaning is generally sufficient.