10K Heavy Duty Trailer Brake - Left Hand Backing Plate - 12.25 x 4 Brake Shoe

Compatible Brands: Dexter

Part Number: K23-438-00 (023-438-00)

Capacity: 10,000 lb per pair (10K HD)

Orientation: Left side (driver’s side)

Brake Type: Electric, self-adjusting (Rear self-adjusting)

Backing Plate: Cast, 7-bolt mounting pattern

Drum Size Compatibility: 12-1/4″ diameter × 4″ wide shoes

• Direct replacement for Dexter part K23-438-00—perfect fit for 10K heavy-duty axles
• Self-adjusting mechanism keeps shoe-to-drum clearance optimal, reducing manual maintenance
• 7-bolt flange ensures secure mounting to axle flange; confirm your axle uses 7 bolts before ordering
• Robust cast backing plate — more durable than stamped versions

• Replacing a single left hand brake assembly on 10K heavy-duty Dexter axles
• Quick and simple swap when paired with its left-side counterpart (K23-439-00)
• Trailers needing reliable, low-maintenance braking systems