Complete 12" x 2" Electric Brake Drum & Bearing Kit for One 8-Lug Trailer Axle
Complete one-axle trailer brake and hub service kit with 12" x 2" brake drum assemblies, bearings, seals, brake components, backing plates, and listed hardware for compatible 5,200 lb, 6,000 lb, and 7,000 lb trailer axles.
Overview
This R&P Carriages one-axle service kit is built for trailer owners repairing or refreshing a compatible 8-lug electric brake axle. It includes the major brake, hub, bearing, seal, and backing plate components listed below, making it a practical repair solution when worn bearings, grooved drums, weak magnets, or tired brake hardware have affected trailer braking performance.
R&P Service Insight
When a bearing failure damages the hub drum or the brake assembly, replacing only one small part often leaves other worn components behind. In shop use, a complete axle-side refresh can save time and help restore braking function more cleanly.
- One-Axle Coverage: Kit is listed for one axle with two complete brake drum and hub assemblies.
- Brake Wear Fix: New shoes, magnets, springs, hardware, and backing plates help address common worn-brake problems.
- Drum Surface Matters: Grooved or worn magnet surfaces can reduce brake magnet bite, even with new magnets installed.
R&P Knowledge Hub
Compatibility: Listed for compatible 5,200 lb, 6,000 lb, and 7,000 lb trailer axles using 12" x 2" brakes, 8-bolt wheels, and #42 spindle dimensions.
Vehicle / System Fit: Trailer electric brake axles, including compatible torsion and leaf spring axle setups where all measurements and mounting points match.
Installation Notes: Verify brake size, wheel bolt pattern, spindle type, inner and outer bearing numbers, seal size, brake flange mounting, and axle rating before ordering or installing.
Performance Insight: Refreshing the drum, bearings, seals, brake shoes, magnets, springs, and backing plate assembly together helps correct multiple wear points in one service job.
Brand & Fitment Note
Selling Brand: R&P Carriages
Application Reference: Axle capacity, spindle, bearing, brake size, and wheel configuration references in this listing describe compatibility targets only.
What This Means: This listing is for an R&P Carriages curated trailer axle brake, drum, hub, bearing, seal, and backing plate service kit, not a guaranteed OEM-branded axle assembly.
Before Ordering: Verify measurements, spindle style, bearing numbers, seal ID, brake flange pattern, wheel bolt pattern, brake size, and included components before installation.
R&P Repair Insight
This kit is intended for axle service where the existing hub drums, bearings, seals, brake shoes, magnets, or brake hardware are worn or damaged. It does not replace the axle tube, springs, suspension hardware, or unrelated axle structure.
- Spindle Check: Confirm your axle uses a #42 spindle before ordering.
- Bearing Check: Match your current bearing numbers to 14125A outer bearings and 25580 inner bearings.
- Seal Check: The kit information lists both 2.25" ID and 2.125" ID seals; verify which seal your axle requires during service.
Features
Complete One-Axle Brake Refresh
Includes the major drum, hub, bearing, seal, brake shoe, magnet, spring, hardware, and backing plate components listed for one compatible trailer axle.
12" x 2" Electric Brake Setup
Designed around 12" x 2" electric trailer brake assemblies for compatible 5,200 lb, 6,000 lb, and 7,000 lb axle applications.
8-Lug Drum & Hub Assemblies
Kit includes two brake drum and hub assemblies for 8-bolt wheel applications where the spindle, bearings, seals, and brake size match.
Shop-Friendly Service Solution
Useful when worn bearings, grooved drums, weak magnets, or tired brake hardware make a full assembly refresh more practical than replacing one small part at a time.
Specifications
| Specification | Detail |
|---|---|
| Part Number | 568183-B-IMP |
| Brand | R&P Carriages |
| Product Type | Trailer brake drum, hub, bearing, seal, and backing plate service kit |
| Application | Compatible trailer electric brake axles |
| Brake Size | 12" x 2" |
| Wheel Configuration | 8-bolt wheel / 8-lug drum applications |
| Spindle Fit | #42 spindle |
| Outer Bearing | 14125A, 1.25" ID |
| Inner Bearing | 25580, 1.75" ID |
| Dust Cap | 2.72" OD |
| Seals Listed | #10-36 / 2.25" ID and 2.125" ID seals listed; verify the correct seal size for your axle |
| Lug Nuts Listed | 9/16-18 lug nuts |
| Brake Mounting Bolts Listed | (10) 3/8" fine thread bolts |
Fitment / Application
| Category | Details |
|---|---|
| Vehicle / System | Trailer electric brake axle system |
| Primary Fit | 5,200 lb, 6,000 lb, and 7,000 lb axles where the listed brake size, spindle, bearing, seal, and wheel configuration match |
| Secondary Fit | Compatible torsion and leaf spring axle applications |
| Notes | Verify 12" x 2" brake size, 8-lug drum fit, #42 spindle, bearing numbers, seal size, brake flange mounting, and axle rating before ordering. |
Included Components
| Quantity | Item |
|---|---|
| 2 | Complete brake drum and hub assemblies for one axle |
| Included | 14125A outer bearings, 1.25" ID |
| Included | 25580 inner bearings, 1.75" ID |
| Included | Seals, including 2.25" ID and 2.125" ID seal options listed for axle fit verification |
| Included | Dust caps, 2.72" OD |
| Included | 12" x 2" brake shoes |
| Included | New brake magnets |
| Included | Brake springs and brake hardware |
| Included | New brake backing plates |
| 10 | 3/8" fine thread brake mounting bolts |
| Listed | 9/16-18 lug nuts; confirm quantity before installation |
