Keep your trailer stopping with confidence. This Lippert factory-replacement brake magnet kit covers everything you need to restore proper electromagnetic braking action on 10-inch electric drum brake assemblies -- magnet, wiring leads, clip, and spring all in one box.
Electric trailer drum brakes rely on a precisely wound electromagnet to engage the brake shoes. Over time, magnets wear against the drum surface, lose magnetism, or develop open circuits in the coil winding. When stopping power drops off or a brake controller fault is detected, the magnet is typically the first component to inspect and replace.
Lippert part 46-0812 is the correct service kit for 10-inch Lippert-branded electric brake assemblies. Everything needed to swap the magnet is included -- no hunting down individual clips or sourcing wire leads separately.
Includes the magnet, green lead wires, retainer clip, and spring -- all OEM Lippert components in a single package.
Sized and calibrated specifically for 10-inch electric drum brake assemblies used on trailers, fifth wheels, and travel trailers.
Pre-attached green lead wires simplify identification and connection to the brake controller wiring harness during installation.
The retainer clip and return spring are included so the full magnet assembly can be reinstalled without sourcing additional hardware.
When the brake controller sends current through the wiring harness, it energizes the electromagnet housed in the brake backing plate. The energized magnet is drawn against the rotating drum surface, which causes it to pivot on its pivot pin and actuate the brake shoes outward against the drum. The force applied to the shoes -- and therefore stopping power -- is directly proportional to the strength of the magnetic field, which depends on the condition of the magnet coil and the air gap between magnet and drum.
A worn or damaged magnet produces weak or uneven braking, causes the brake controller to report a short or open circuit, or results in one axle braking harder than another. Replacing the magnet with a fresh OEM-spec unit restores correct operation without the cost of a full brake assembly replacement.
Replacing a brake magnet is a straightforward service job for anyone comfortable working on trailer running gear. The general process involves removing the wheel and drum, unclipping the old magnet from its pivot pin, disconnecting the lead wires, and reversing the steps with the new magnet. The retainer clip and spring included in this kit secure the magnet body to the backing plate pivot.
Magnet Kit for Lippert / Dexter Electric BrakesFits Lippert / Dexter 10" x 2.25" Electric Brakes, 3,500 lb axles