Dexter 12-1/4" x 3-3/8" Hydraulic Brake Assembly – 10,000 lb General Duty – Left Hand – 7 Bolt
Genuine Dexter 12-1/4" x 3-3/8" hydraulic brake backing plate assembly designed for 9,000–10,000 lb general duty trailer axles. Left-hand configuration (driver side). Mounts to a 7-bolt brake flange and is intended for heavy-duty hydraulic drum brake systems.
Designed for use with hydraulic surge or electric-over-hydraulic actuator systems. This assembly is not compatible with electric drum brake systems.
Features
- 12-1/4" diameter x 3-3/8" wide brake assembly
- Designed for 9,000–10,000 lb general duty axles
- Hydraulic duo-servo design
- Left-hand (driver side) orientation
- 7-bolt mounting flange configuration
- Genuine Dexter component
R&P Knowledge Hub
Hydraulic brake assemblies use fluid pressure from a surge actuator or electric-over-hydraulic system to expand the brake shoes against the drum surface.
The duo-servo design provides self-energizing braking in both forward and reverse directions, improving stopping performance under heavy loads. These 10K general duty assemblies mount to a 7-bolt brake flange and are typically serviced as complete units.
Before ordering, confirm brake size (12-1/4" x 3-3/8"), axle rating, 7-bolt flange configuration, and correct side.
Specifications
| Specification | Detail |
| Manufacturer | Dexter |
| Brake Diameter | 12-1/4 Inches |
| Brake Width | 3-3/8 Inches |
| Axle Capacity | 9,000–10,000 lbs (General Duty) |
| Mounting Pattern | 7 Bolt Flange |
| Orientation | Left Hand (Driver Side) |
| Brake Type | Hydraulic Duo-Servo |
Verify specifications before installation.
