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Euclid · Brakes & Wheel End
E612
In stock · ships from Knoxville
The E612 is a manual slack adjuster for heavy-duty truck and trailer air brake systems.
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Universal fit
Designed for S-cam air brake systems with 1.5" diameter, 10-spline camshafts. The arm length can be set to 5", 6", or 7" to match the specific axle geometry. Always verify required arm length and spline before installation.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 15 of 15.
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It connects the brake chamber pushrod to the S-camshaft, turning linear pushrod motion into the rotational force needed to spread the brake shoes. Unlike automatic adjusters, it must be periodically adjusted to maintain proper brake stroke and clearance. This model fits a 1.5-inch diameter camshaft with 10 splines and offers an adjustable arm length of 5, 6, or 7 inches, making it a versatile service replacement for many commercial vehicles.
Part Number: E612
10 SPLINE SLACK ADJ
Unit: ea
Dealer: Post Onsite
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Parts commonly needed alongside brakes & wheel end