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Ridgid 32992 steel air switch for drain cleaners

Ridgid

Ridgid 32992 air switch steel for K-375R K-380 K-3800 K-40 K-400 K-40B K-6200 K-750 K-7500 K-750R

SKU CH-MHZV-DHVQ5

Steel air switch controls compatible Ridgid drain cleaning machines including K-375R, K-380, K-3800, K-40, K-400, K-40B, K-6200, K-750, K-7500 and K-750R models

  • Product typeHydraulic Tool Accessories
  • Steel construction resists wear on drain-cleaning jobs
  • Air-switch design gives hands-free machine control
  • Fits Ridgid K-375R K-380 K-3800 K-40 K-400 K-40B K-6200 K-750 K-7500 K-750R
  • Direct replacement for Grainger 1ATH5 2AER4 2AER5 4CX03 4CX14 5LC09
  • Impact-rated no so suited for standard cleaning tasks

Ridgid 32992 Air Switch for Drain Cleaners

The Ridgid 32992 is a steel air switch built to control compatible Ridgid drain cleaning machines. It serves as a direct replacement component for service technicians and plumbers maintaining K-375R, K-380, K-3800, K-40, K-400, K-40B, K-6200, K-750, K-7500 or K-750R units. The accessory carries part number 32992 and is rated for impact use in hydraulic tool applications.

Replaces Worn Switches on Listed K-Series Machines

This switch restores pneumatic control when the original unit fails or shows inconsistent actuation. The upgrade is worth it when the machine no longer responds reliably to foot-pedal input during drain clearing jobs. It fits the exact Grainger part numbers 1ATH5, 2AER4, 2AER5, 4CX03, 4CX14 and 5LC09 without modification. No other cleaner models are supported by this part.

Pneumatic Interface Limits Operation

The switch operates solely through air pressure signalling and cannot be used with electrically controlled or wireless trigger systems. It requires a functioning air hose and foot pedal assembly already present on the machine. Builders needing electronic speed control or remote operation will find this accessory incompatible with those requirements. The steel housing resists corrosion but does not alter the machine's native pneumatic logic.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $43.99
Pricier than about 64% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameRIDGID
Product typeHydraulic Tool Accessories

Questions about this item

Does the 32992 steel air switch mount directly on a K-400 drain cleaner?

The 32992 steel air switch is compatible with the K-400 and the full list of Ridgid drain cleaning machines including K-375R, K-380, K-3800, K-40, K-40B, K-6200, K-750, K-7500 and K-750R.

What is the correct way to thread the air switch onto the machine so it seals?

Apply pipe-thread sealant to the male threads, hand-tighten the steel air switch into the machine's air port, then give a final quarter-turn with a wrench; over-tightening cracks the housing and causes leaks.

When should the 32992 air switch be replaced during routine drain-cleaner maintenance?

Replace the steel air switch if the actuator sticks, air hisses at the fitting, or the machine fails to start reliably after 3 to 4 heavy-use seasons.

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