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Sirco · Brakes & Wheel End
C442BR
In stock · ships from Knoxville
This is a Sirco right-hand S-camshaft for heavy-duty truck and trailer air brake systems.
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Other applications
Other applications
Right-hand camshaft; requires a 28-spline slack adjuster (manual or automatic). Verify the overall length (17-5/16 in.) and journal diameter (1-1/2 in.) match your existing camshaft. Fits many truck and trailer axles that use the Meritor Q-style brake configuration.
Part data verified against 3 catalog sources
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It sits inside the brake spider, transferring rotational force from the slack adjuster into the spreading motion that presses the brake shoes against the drum when the brakes are applied. Forged from steel and induction-hardened, it's built for direct replacement on Meritor 'Q' and 'Q Plus' 16.5-inch brakes with 28-spline slack adjusters. You’d replace this camshaft if the original splines are worn, the cam head is scored, or as part of a complete brake overhaul.
Part Number: C442BR
CAMSHAFT, RH 1.50X17-3/8
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside brakes & wheel end
