Product Description
The Bendix M12WKR25-222N Right-Hand S-Cam Brake Camshaft is a heavy-duty replacement component designed for compatible lowboy trailers and commercial trailer drum brake systems. Engineered for Spicer brake assemblies, this camshaft converts the rotational movement of the slack adjuster into mechanical force that spreads the brake shoes against the brake drum.
Featuring a 22.25-inch under-head length, 1.5-inch spline diameter, and 28-spline configuration, the M12WKR25-222N provides the specific dimensions needed for compatible right-hand brake installations. Its durable steel construction is designed to withstand repeated braking cycles and demanding commercial trailer operating conditions.
A worn, bent, damaged, or excessively corroded S-camshaft can contribute to uneven brake shoe movement, inconsistent braking, and premature component wear. Replacing a damaged camshaft with the correct configuration helps restore proper brake operation.
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Genuine Bendix replacement S-cam brake camshaft
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Manufacturer Part Number: M12WKR25-222N
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Right-hand configuration
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Clockwise (CW) camshaft rotation
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Designed for compatible lowboy trailer brake systems
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Spicer brake compatibility
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Brake size: Approximately 12.25 inches
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Under-head camshaft length: 22.25 inches
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Head-to-retaining-ring-groove length: 22 inches
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Spline diameter: 1.50 inches
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Spline count: 28
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Camshaft journal diameter: Approximately 1.625 inches
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Heavy-duty construction for commercial trailer braking systems
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New replacement component
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Manufactured in the United States
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Sold individually
The M12WKR25-222N is designed for compatible Spicer S-cam brake assemblies. Its clockwise rotation and specific shaft dimensions distinguish it from other S-camshafts used in commercial vehicles.
Before ordering, verify the original camshaft part number, brake assembly manufacturer, rotation direction, shaft length, journal diameter, and spline configuration. Right-hand and left-hand S-camshafts are not interchangeable.
Specifications are supported by Bendix distributor listings from FinditParts, FleetPride, and JIT Truck Parts.
