Product Description
The KC71-378 Brake Magnet Kit is a heavy-duty replacement magnet designed for 12-1/4" electric trailer brake assemblies used on 8,000–12,000 lb axles. Compatible with popular brands like Dexter, Carter, Lippert, AL-KO, and Rockwell, this magnet delivers consistent braking force and fits both self-adjusting and manual-style assemblies. Includes a pre-wired magnet with lead wires.
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Brake Size: 12-1/4” diameter
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Axle Capacity: 8K–16K electric drum brake axles
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Compatibility: Dexter, Carter, Lippert, Rockwell, AL-KO
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Includes: Brake magnet with lead wires
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Fits: Left or Right Brake Assemblies
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Mounting Hardware: Sold separately
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Condition: New, boxed or bulk
Interchangeable Part Numbers:
KC71-378, 71-378, K71-378-00, 77M-1210
Upgrade your trailer’s braking performance with the KC71-378 Electric Brake Magnet Kit, designed to replace worn-out magnets on 12-1/4" brake assemblies for 8K–12K axles. Whether you're running Dexter, Lippert, Carter, Rockwell, or AL-KO setups, this heavy-duty magnet is built to OEM specs and provides strong, responsive braking in demanding conditions.
Universal fit for most 12-1/4" electric brakes
Installs on left or right side of the brake assembly
Perfect for goosenecks, lowboys, flatbeds, and heavy cargo trailers
Wired and ready to install – quick and easy replacement
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Part Number: KC71-378
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Replaces: 71-378, K71-378-00, 77M-1210
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Brake Size: 12-1/4" Electric Brake Assemblies
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Fits Axle Ratings: 8,000 lb – 16,000 lb
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Application: Universal – Dexter, Lippert, Carter, Rockwell, AL-KO
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Includes: Brake magnet with pigtail lead
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Side: Fits left or right
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Condition: New
