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Euclid · Brakes & Wheel End
E581
In stock · ships from Knoxville
This is a camshaft spacer washer (sometimes called a thrust washer or shim) for S‑cam drum brakes on heavy‑duty trucks and trailers.
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Exact vehicle models are not documented by the manufacturer; the washer is designed for any S‑cam brake with a 1‑1/2 inch diameter shaft. Confirm camshaft size before ordering.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 16 of 20.
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It slides onto the brake camshaft to set end play, provide a wear surface, and keep components properly aligned. Replacement is typical when the washer is worn, corroded, or during a brake overhaul to maintain correct camshaft clearance and avoid brake drag or uneven wear. It fits 1‑1/2 inch diameter camshafts and is common in Class 8 commercial vehicle air brake systems.
Part Number: E581
CAMSHAFT WASHER
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside brakes & wheel end