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.

Knox Trailers · Brakes & Wheel End
T30
In stock · ships from Knoxville
A Type 30 brake chamber is a pneumatic actuator used in heavy-duty air brake systems.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
We don't publish fitment for this part yet. Rather than guess, get it confirmed against your truck in under a minute.
It converts compressed air into mechanical force to apply the brakes when the pedal is pressed. This size is commonly found on drive axles and trailer axles. Replacement is necessary when the chamber develops air leaks, the internal diaphragm tears, or the push rod stroke exceeds the legal adjustment limit, which can lead to reduced braking performance or safety violations.
Part Number: T30
BRAKE CHAMBER TYPE 30
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside brakes & wheel end