Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.

Dayton Parts · Air System
AV101112
In stock · ships from Knoxville
The AV101112 is a spring brake control valve (SR-4 style) designed for trailer air brake systems.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 1 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Other applications
Other applications
Direct replacement for Bendix SR-4 valves; fits many heavy-duty trailer makes and models equipped with air brakes. Verify port sizes and reservoir thread match.
Part data verified against 4 catalog sources
Numbers this part supersedes or interchanges with. Showing 16 of 17.
Different year, make, or config? Get a confirmation against your truck in under a minute.
It controls both parking and emergency brake functions by using the trailer's service reservoirs to release the spring brakes. The valve includes integral pressure protection and check valves to isolate reservoir failures, preventing automatic spring brake application. It replaces old PR-3 and SR-2 valves and features anti-compounding to prevent simultaneous service and spring brake application.
Part Number: AV101112
NEW SPRINGBRAKE CONTROL VALVE
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside air system