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12.25" x 5" Brake Backing Plate SelfAdjust Electric Trailer Left Side 15000 Cap (023-446-00)

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R & P Carriages

Dexter 12-1/4" x 5" Electric Brake Assembly – 15,000 lb Axle – Self-Adjusting – Left Hand

Part Number: 023-446-00

Genuine Dexter 12-1/4" x 5" electric trailer brake assembly designed for heavy-duty 15,000 lb axle applications. Left-hand configuration (driver side). Forward self-adjusting and built for commercial and high-capacity trailer systems.

All brake components are fully pre-assembled on the backing plate for efficient installation and complete brake replacement.

Features

  • 12-1/4" diameter x 5" wide brake assembly
  • Designed for 15,000 lb axle applications
  • Electric drum brake operation
  • Forward self-adjusting mechanism
  • Left-hand (driver side) orientation
  • Pre-assembled backing plate design
  • Genuine Dexter component

R&P Knowledge Hub

Electric brake assemblies operate through a brake controller that energizes the magnet, engaging the drum surface and expanding the brake shoes.

Forward self-adjusting systems automatically maintain proper shoe-to-drum clearance during forward travel, reducing routine manual adjustment requirements.

12-1/4" x 5" assemblies are used on 15K heavy-duty axles commonly found on equipment trailers, commercial haulers, and high-capacity applications. Always verify brake size, axle rating, mounting flange configuration, and correct left-hand orientation before ordering.

Specifications

Specification Detail
Manufacturer Dexter
Brake Diameter 12-1/4 Inches
Brake Width 5 Inches
Axle Capacity 15,000 lbs
Orientation Left Hand (Driver Side)
Adjustment Type Forward Self-Adjusting
Brake Type Electric Drum Brake

Verify specifications before installation.

023-446-00, Dexter 12.25 x 5 electric brake, 15000 lb trailer brake, 15K axle electric brake assembly, self adjusting brake left hand driver side
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