Air brake knob adapter for 2.25" diameter knobs - SINGLE

The female side of this adapter (5/8" x 11 thread) fits standard threaded MV3 part control valves, commonly found on most trucks. Not compatible with air brake knobs that install with a roll-pin.

Sold SINGLE. Knobs and jam nuts not included.

The male end of this adapter is a 1/2" x 13 thread - compatible with our round gear shift knobs.