Dexter K23‑428 Electric Brake Assembly – 12‑1/4″ × 2‑1/2″, Left Side, 7,200 lb

Provide dependable braking for your trailer with the Dexter K23‑428 Electric Brake Assembly — a driver‑side (left-hand) unit made for 7,200 lb axle systems. This OEM electric brake delivers consistent performance and is built to the specifications Dexter supports for manual adjust setups.

Key Features:

• OEM Dexter Part #: K23‑428 (023‑428‑00)
  Factory‑spec left-hand electric brake assembly. 

• Electric Drum Brake Design
  Uses electric actuation for compatible integration with most trailer brake controllers. 

• Manual Adjustment Mechanism
  Requires periodic manual adjustment to maintain proper shoe clearance.

• Painted Cast Steel Backing Plate
  Durable construction with a protective finish against corrosion. 

• 4‑Bolt Mounting Flange
  Standard 4-hole flange for mounting on compatible brake flanges. 

Specifications:

• Part Number: K23‑428 / 023‑428‑00 

• Brake Type: Electric drum brake assembly 

• Orientation / Side: Left-hand (driver’s side)

• Brake Size: 12‑1/4″ (diameter) × 2‑1/2″ (shoe width) 

• Axle Capacity (per pair): 7,200 lb (i.e. ~3,600 lb per wheel)

• Mounting Bolt Flange Pattern: 4 bolts 

• Wheel Size Compatibility: 15″ and up (drum compatible wheel size) 

• Adjustment Type: Manual adjust 

• Mount Side / Hand: Left (driver side) 

Trailer Compatibility

The Dexter K23‑428 electric brake is suitable for:

• Trailers using 7,200 lb Dexter (or compatible) axle systems

• Enclosed / cargo trailers, utility trailers, flatbeds needing left-side brake

• Retrofit or repair situations requiring a direct replacement of the driver-side brake assembly
  

Be sure to pair it with the matching right‑hand brake (e.g. K23‑429) and confirm your bolt pattern, drum size, and wiring setup before installing.