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.
Haldex · Air System
KN32011
In stock · ships from Knoxville
This is a quick release valve for heavy-duty 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.
Universal fit
This is a universal quick release valve suitable for many heavy-duty trucks and trailers. Aftermarket sellers commonly reference Kenworth T660, Peterbilt 379, and Volvo VNL 670 Gen 1 & 2 (1996‑2019), but always verify against the vehicle’s air system requirements and service manual.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 12 of 12.
Different year, make, or config? Get a confirmation against your truck in under a minute.
It rapidly exhausts air from the brake chambers when the driver releases the brake pedal, which helps prevent brake drag and speeds up release timing. The valve body is made of durable engineering-grade composite that resists corrosion and weather, and it uses an oil-resistant diaphragm for longer service life. You would replace this valve if it is leaking, sticking, or causing slow brake release.
Part Number: KN32011
VALVE QUICK RELEASE
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside air system
