Mon–Fri 9:00 AM–5:00 PM CST  |  Sat 9:00 AM–3:00 PM  |  Sun Closed  |  Call or Text 815-357-3292  •  Free Shipping on Most Orders  •  Real-Time Rates When Applicable  •  Upgrade Delivery at Checkout  |  Ships Next Business Day Monday–Friday  |  We install what we sell — parts backed by real trailer service.  |  Need fitment help? Send us your trailer part photos and we will help you match it right.  |  How are we doing? Leave a review → Mon–Fri 9:00 AM–5:00 PM CST  |  Sat 9:00 AM–3:00 PM  |  Sun Closed  |  Call or Text 815-357-3292  •  Free Shipping on Most Orders  •  Real-Time Rates When Applicable  •  Upgrade Delivery at Checkout  |  Ships Next Business Day Monday–Friday  |  We install what we sell — parts backed by real trailer service.  |  Need fitment help? Send us your trailer part photos and we will help you match it right.  |  How are we doing? Leave a review →
FAMILY OWNED & OPERATED

Dexter 12-1/4 x 3-3/8 8K Axle RIGHT Hydraulic Backing Plate Trailer RV Camper (023-403-00)

$482.55
Most items ship free — select items ship for $6.39
Only 2 left
Not Sure It Fits? Ask a Pro
R & P Carriages

Dexter 12.25" x 3.375" Hydraulic Brake Assembly – 8,000 lb Axle – Right Hand – 4 Bolt

Part Number: 023-403-00

Genuine Dexter 12.25" x 3.375" hydraulic brake backing plate assembly designed for 8,000 lb trailer axles. Right-hand configuration (passenger side). Mounts to a 4-bolt brake flange and is used with hydraulic surge or electric-over-hydraulic brake systems.

This assembly is intended for hydraulic drum brake systems only and cannot be used with electric brake systems.

Features

  • 12.25" diameter x 3.375" wide brake assembly
  • Designed for 8,000 lb axle applications
  • Hydraulic duo-servo design
  • Right-hand (passenger side) orientation
  • 4-bolt mounting flange configuration
  • Genuine Dexter component

R&P Knowledge Hub

Hydraulic trailer 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, which improves stopping efficiency under heavy loads. Brake assemblies are side-specific and must match the correct left or right orientation.

Before ordering, verify brake size (12.25" x 3.375"), axle rating (8,000 lb), 4-bolt flange configuration, and proper side.

Specifications

Specification Detail
Manufacturer Dexter
Brake Diameter 12.25 Inches
Brake Width 3.375 Inches
Axle Capacity 8,000 lbs
Mounting Pattern 4 Bolt Flange
Orientation Right Hand (Passenger Side)
Brake Type Hydraulic Duo-Servo

Verify specifications before installation.

023-403-00, Dexter 12.25 x 3.375 hydraulic brake, 8000 lb trailer brake, 4 bolt hydraulic brake assembly, right hand duo servo brake
R & P Carriages Baseball Field Advertising Sign