Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.
Dexter · Brakes & Wheel End
K71-104
In stock · ships from Knoxville
This is a brake magnet kit for electric trailer brakes. It creates a magnetic field when voltage is applied, causing the magnet to stick to the rotating armature surface inside the brake drum, which actuates the brake shoes.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 2 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Capacity
Other applications
Capacity
Other applications
Kit includes both a pre-July 2016 magnet spring (046-080-00) and a post-July 2016 spring (046-175-00). Verify the production date of your brake assembly to select the correct spring.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 4 of 4.
Different year, make, or config? Get a confirmation against your truck in under a minute.
The kit is designed for 10-inch diameter Dexter brake assemblies with a 3,500 lb capacity. Over time, the magnet face wears down or the coil fails, leading to weak or uneven braking; replacing the magnet restores proper brake performance. The kit includes the magnet, clip, and two spring options to cover different production dates.
Part Number: K71-104
BRAKE MAGNET, 10 3.5K
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside brakes & wheel end
