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Post Onsite · Engine
WC528L
In stock · ships from Knoxville
This is a left-hand (driver side) S‑camshaft for heavy‑duty air drum brakes, typically found on truck or trailer axles.
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.
When the service brakes are applied, the slack adjuster rotates the camshaft, and the S‑shaped head pushes the brake shoes outward against the drum. Over time, wear on the splines or cam head can cause uneven braking or excessive slack, making replacement necessary to maintain safe stopping performance. The “LH” marking indicates it is intended for the left side of the axle, working opposite a matching right‑hand camshaft.
Part Number: WC528L
CAMSHAFT,LH
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
