Brake Magnet Kit — Fits Dexter 12¼" Brakes (1992–Present)
Part Number: 77M-1210
Fits all Dexter 12¼" electric brakes after 1992.
Also fits most 12,000 lb trailer axles using 12¼" brake assemblies.
Includes brake magnet, new spring, and clip.
Wire color may vary — see notes below.
Fitment
| Compatible With |
| • Dexter 12¼" Electric Brakes (1992–Present) • 7.2K, 8K, 10K, 12K, 15K Brake Systems • 12¼" × 2.5" through 12¼" × 5" brake assemblies • Most 12,000 lb trailer axles • Direct replacement for older Dexter red-wire magnets |
Important Notes
- 2017+ Standardization: Dexter and Rockwell 12¼" brake drums now use the same magnet.
- We are working through existing stock; as inventory rotates, all shipments will use the newer Red/Black wire magnet.
- Fits Dexter axles only.
- Wire color may vary as old inventory sells down.
In the Box
| Item | Qty |
| Brake Magnet | 1 |
| Spring | 1 |
| Retaining Clip | 1 |
Specifications
| Spec | Details |
| Brake Size | 12¼" |
| Compatibility | 7.2K–15K Dexter / Rockwell brake systems |
| Wire Leads | 2-wire lead, color varies |
| Dimensions | Standard Dexter 12¼" magnet footprint |
R & P Carriages • 270 E Jackson Street • Seneca, IL
Family-owned • Installers on staff • Over 200 trailers in inventory
Thank you for supporting a small business!
Shipping
We ship quickly and carefully, with tracking provided on every order. Most items ship the same or next business day. Your parts will arrive safely and on time, ready to use.
Returns & Guarantee
Your satisfaction is guaranteed. Returns, refunds, and exchanges are accepted — no hassle. We stand behind every part we sell, so you can purchase with confidence.
Committed to Customer Service
At R and P Carriages, we believe in treating our customers like family. Whether you need a small replacement part or a complete trailer service, we’re here to help with friendly, expert support every step of the way.
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