Dexter K23-450-00 12-1/4 x 3-3/8 LH Electric Trailer Brake Assembly, 9K-10K GD Self-Adjusting

The Dexter K23-450-00 is a complete 12-1/4 inch x 3-3/8 inch electric forward self-adjust brake assembly built for 9,000-10,000 lb general duty (GD) trailer axles. This is the left-hand (LH) side assembly, engineered as a direct, ready-to-install unit rather than a collection of loose parts, making it a straightforward replacement when a trailer's electric brake needs to be swapped out.

As a self-adjusting design, the K23-450-00 automatically compensates for shoe wear during forward travel, helping maintain consistent stopping performance and reducing the need for manual adjustment compared to non-self-adjusting brake assemblies. Because it is electric, it is intended for trailers running an electric brake system rather than a hydraulic (surge) setup.

This part is side-specific: the K23-450-00 is the LH (left-hand) assembly only. Trailers with brakes on both axle ends require the matching right-hand assembly, Dexter part K23-451-00, sold separately. Always confirm which side you are ordering for before installing, since the LH and RH assemblies are not interchangeable.

Specifications

• Brand: Dexter
• Manufacturer Part Number: K23-450-00
• Product Category: Trailer Drum Brakes
• Brake Size: 12-1/4 inches x 3-3/8 inches
• Side: Left Hand (LH)
• Brake Type: Electric
• Adjustment Type: Forward Self-Adjusting
• Duty Rating: 9,000-10,000 lb General Duty (9K-10K GD)
• Weight: 20.15 pounds
• UPC: 876983002016
• Included Accessory: Funnel

Fitment

Fits trailer axles rated for 9,000-10,000 lb general duty (GD) service using a 12-1/4 inch x 3-3/8 inch electric brake. Left-hand (LH) side only; use K23-451-00 for the right-hand side.

Replaces (OEM)

No OEM cross-reference numbers are listed for this part.

Frequently Asked Questions

What size is the Dexter K23-450-00 brake assembly? It is a 12-1/4 inch x 3-3/8 inch electric brake assembly, sized for 9,000-10,000 lb general duty (GD) trailer axles.

Is K23-450-00 a left-side or right-side brake? K23-450-00 is the left-hand (LH) brake assembly. For the right-hand side, order the matching Dexter part K23-451-00 instead.

Does this brake self-adjust? Yes, the K23-450-00 is a forward self-adjusting electric brake assembly, so it automatically compensates for shoe wear during forward travel.

What duty rating is the K23-450-00 designed for? This assembly is rated for 9,000 to 10,000 lb general duty (GD) trailer axles.

How much does the Dexter K23-450-00 weigh? It weighs 20.15 pounds.

Is the K23-450-00 a complete brake assembly or just individual parts? It is a complete electric forward self-adjust brake assembly, ready for installation rather than a set of individual loose components.

What comes in the box with the K23-450-00? The package includes the complete brake assembly along with a funnel.

What brand makes the K23-450-00 brake assembly? This is a genuine Dexter part, identified by Dexter part number K23-450-00.

Can I install K23-450-00 on the right side of my trailer? No. K23-450-00 is built for the left-hand (LH) side only; the right-hand side requires Dexter part K23-451-00.

Is the K23-450-00 an electric or hydraulic brake? It is an electric brake assembly, intended for trailers with an electric brake system.

What is the UPC for the Dexter K23-450-00? The UPC for this brake assembly is 876983002016.