Dexter K23‑439 Electric Brake Assembly – 12‑1/4″ × 4″, Right Side, 10,000 lb

Give your trailer dependable stopping power with the Dexter K23‑439 Electric Brake Assembly, a heavy‑duty right‑hand (passenger side) unit built for 10,000 lb axle systems. This OEM electric brake features self‑adjusting action, robust construction, and compatibility with standard mounting patterns.

Key Features:

• OEM Dexter Part #: K23‑439 (023‑439‑00)
  Genuine Dexter electric brake kit for right side (passenger side) installation. 

• Electric Drum Brake Design
  Uses electric actuation, integrating with standard trailer brake controllers. 

• Forward Self‑Adjusting (FSA)
  Automatically maintains proper shoe clearance without manual adjustment.

• Cast Backing Plate Construction
  Durable backing and components for long service life. 

• 7‑Bolt Mounting Pattern
  Designed to mount on 7‑hole brake flanges common in 10K axles. 

Specifications:

• Part Number: K23‑439 / 023‑439‑00

• Brake Type: Electric drum brake assembly

• Side / Orientation: Right side (passenger)

• Brake Size: 12‑1/4″ × 4″ (diameter × width) 

• Axle Capacity (per pair): 10,000 lb (i.e. ~5,000 lb per wheel) 

• Mounting Pattern: 7 bolt flange (7 holes) 

• Adjustment Type: Forward Self‑Adjusting (FSA)

• Magnet / Shoe Width: 4″ wide shoes / drum width 

Compatibility / Application

The Dexter K23‑439 brake assembly is ideal for:

• Trailers using 10,000 lb Dexter axles

• Heavy duty cargo, enclosed, or equipment trailers

• Projects or repairs needing the right‑side brake

• Brake system upgrades or full brake kits

Ensure matching left side brake, proper wiring, and mounting geometry before ordering.