Match the part number, measurements and connection points that apply to your trailer.
| Hub Face | Measure hub face to hub face. |
|---|---|
| Spring Center | Measure mounting centers and confirm perch configuration. |
| Capacity | Match the required axle rating. |
| Brakes | Confirm brake type and flange configuration. |
Complete set of two genuine Dexter 12-1/4" x 3-3/8" hydraulic brake backing plate assembliesfor 8,000 lb trailer axles. Includes one left-hand (driver side) and one right-hand (passenger side)brake assembly.
Designed for heavy-duty hydraulic drum brake systems using surge or electric-over-hydraulicactuators. Mounts to standard 4-bolt brake flanges.
These assemblies are for hydraulic systems only and cannot be used with electric brake systems.
Hydraulic brake assemblies use fluid pressure from a surge actuator or electric-over-hydraulicsystem to expand the brake shoes against the drum surface.
The duo-servo design provides self-energizing braking in both forward and reverse directions,which improves stopping performance under heavy loads. Because brake assemblies are side-specific,a complete axle requires both a left and right unit — this listing includes both.
Before ordering, verify brake size (12-1/4" x 3-3/8"), axle rating (8,000 lb),and 4-bolt flange configuration.
| Specification | Detail |
| Manufacturer | Dexter |
| Brake Diameter | 12-1/4 Inches |
| Brake Width | 3-3/8 Inches |
| Axle Capacity | 8,000 lbs |
| Mounting Pattern | 4 Bolt Flange |
| Configuration | Left & Right Pair |
| Brake Type | Hydraulic Duo-Servo |
Verify specifications before installation.
Selected from R&P customer feedback for Trailer Axle / Running Gear products and related trailer service.
“Got me the axle I needed right away with custom spring perch setting.”
“Had a trailer made to my needs.ken was able to get it done and at a price that was very acceptable.i have bought parts there for 2 other trailers and always in stock”
“Quality work. Staff is polite. Great job welding a project for me. Didn't even want to charge me, so I bought them a case of Corona. They were ecstatic. I ever need a welding or like that R&P Carriages is #1 !!!!!”
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