At a Glance
- >1 – Left Hand Hydraulic Brake Backing Plate (023-398-00)
- >1 – Right Hand Hydraulic Brake Backing Plate (023-399-00)
- >8 – Mounting Nuts
- >8 – Washers
- >7" diameter x 1-3/4" wide brake assemblies
- Brand: Dexter
- SKU: 023-3989-RL
Before You Order
Match the part number, measurements and connection points that apply to your trailer.
Fitment Check
| 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. |
Product Details
2 Dexter 7" x 1-3/4" Hydraulic Brake Backing Plates – 2,000-2,500 lb Axle – Left & Right
Part Numbers: 023-398-00 (Left) | 023-399-00 (Right)
Complete set of two 7" x 1-3/4" hydraulic uni-servo brake backing plate assembliesfor 2,000–2,500 lb trailer axles. Includes one left-hand (driver side) and oneright-hand (passenger side) brake assembly.
Common replacement for boat, snowmobile, and light-duty utility trailers.Designed for hydraulic drum brake systems only. Cannot be used with electric brake systems.
Included
- 1 – Left Hand Hydraulic Brake Backing Plate (023-398-00)
- 1 – Right Hand Hydraulic Brake Backing Plate (023-399-00)
- 8 – Mounting Nuts
- 8 – Washers
R&P Knowledge Hub
Hydraulic backing plates are actuated by brake fluid pressure from a surge actuator or master cylinder.They are not compatible with electric brake controllers or electric drum brake systems.
Uni-servo hydraulic brakes are commonly used on 2,000–2,500 lb axlesfound on marine and powersport trailers. Brake assemblies are side-specific,so a complete axle requires both a left and right assembly — this kit provides both.Always confirm brake size (7" x 1-3/4"), axle capacity, and mounting flange configuration before ordering.
Features
- 7" diameter x 1-3/4" wide brake assemblies
- Designed for 2,000–2,500 lb axle applications
- Hydraulic drum brake operation (not electric)
- Includes both left and right side assemblies
- Common boat and snowmobile trailer application
- Made in the USA
Specifications
| Specification | Detail |
| Manufacturer | Dexter |
| Brake Size | 7" x 1-3/4" |
| Axle Rating | 2,000–2,500 lb |
| Brake Type | Hydraulic Uni-Servo |
| Configuration | Left & Right Pair |
Verify specifications before installation.
