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Bendix · Air System
101112
In stock · ships from Knoxville
This is a trailer spring brake valve (SR‑4 style) that controls both the parking and emergency brake functions.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 6 applications
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All confirmed applications for this part number.
Freightliner
International
Kenworth
Peterbilt
Other applications
Freightliner
International
Kenworth
Peterbilt
Other applications
SR‑4 trailer spring brake valve. Typically mounted on the trailer reservoir with 3/4″ NPT thread. Compatible with trailers pulled by the listed tractor makes/models.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 11 of 11.
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It uses the trailer’s service reservoirs to release the spring brakes, and has an integral anti‑compound feature that prevents the service and spring brakes from applying at the same time. You replace it when the valve leaks air, fails to hold the parking brake, or causes the brakes to drag.
Part Number: 101112
VALVE, SR4
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside air system
