FOUR Electric Brake Magnet Kit for Dexter Lippert 7.2K to 15k Trailer Axle
A four-magnet replacement set for compatible Dexter, LCI and Rockwell GD-style 12-1/4-inch electric trailer brakes. Comparable in application to Dexter K71-378-00 where brake dimensions and configuration match.
Key Measurements & Specs
| Specification | Detail |
|---|---|
| Part Number / SKU | 77M-1210-LOT4 |
| Product Type | Replacement electric trailer brake magnet kit |
| Package Quantity | Four complete magnet sets |
| Brake Diameter | 12-1/4 inches |
| Axle Rating Range | 7,200–15,000 lb axle applications where brake configuration matches |
| Magnet Dimensions | Approximately 4 inches long × 2-1/2 inches wide × 1 inch high |
| Wire Configuration | Two-wire electrical connection |
| Wire Length | Approximately 42-inch encased wire with 5-inch exposed leads |
| Reference Number | Comparable in application to Dexter K71-378-00 |
Fitment / Application
| Category | Details |
|---|---|
| Brake System | Electric drum trailer brakes |
| Brake Size | Compatible 12-1/4-inch brake assemblies |
| Dexter Applications | Compatible with applicable Dexter 12-1/4-inch electric brakes, including 7.2K, 8K, 9K, 10K GD, 10K HD, 12K and 15K configurations. |
| Additional Applications | Intended for compatible LCI and Rockwell GD-style brake assemblies where the magnet dimensions, mounting spring and retaining clip match. |
| Production Reference | Commonly used with applicable Dexter 12-1/4-inch brake assemblies manufactured after June 1992. |
| Brake Widths | Application may include 12-1/4 × 2-1/2-inch, 12-1/4 × 3-3/8-inch, 12-1/4 × 4-inch and 12-1/4 × 5-inch brake configurations. |
| Fitment Verification | Verify brake diameter, shoe width, axle rating, magnet dimensions, mounting configuration and existing wire arrangement before ordering. |
Features
Four Complete Magnet Sets
Includes four magnets, four mounting springs and four retainer clips for servicing up to four compatible electric brake assemblies.
Wide 12-1/4-Inch Brake Compatibility
Designed for compatible heavy-duty 12-1/4-inch electric trailer brake applications across multiple axle capacities and brake widths.
Two-Wire Connection
Each magnet uses a two-wire electrical configuration for integration with compatible electric drum brake wiring.
Extended Encased Wiring
Approximately 42 inches of encased wire with 5-inch leads provides usable routing length for compatible brake assemblies.
Application Reference to K71-378-00
Comparable in application to Dexter K71-378-00 when the brake dimensions, mounting components and electrical configuration match.
Straightforward Component Assembly
Supplied with the magnet mounting springs and retaining clips needed to secure each included magnet in a compatible brake assembly.
Included Components
| Quantity | Included Item |
|---|---|
| 4 | Electric trailer brake magnets with attached two-wire leads |
| 4 | Magnet mounting springs |
| 4 | Magnet retainer clips |
