Dexter K23-451-00 12-1/4 Inch x 3-3/8 Inch Electric Trailer Brake Assembly, Right Hand/Passenger Side, 9,000-10,000 lb Axles

The Dexter K23-451-00 is a complete 12-1/4 inch x 3-3/8 inch electric forward self-adjusting brake assembly built for 9,000 to 10,000 lb general duty (9K-10K GD) trailer axles. This is the right hand, passenger side brake -- a matching left hand (driver side) assembly is sold under a separate Dexter part number, so be sure you are ordering the side that matches your axle position.

The assembly ships fully built as a complete unit rather than a collection of loose parts, so it installs directly onto a compatible 7-bolt pattern axle flange without needing to source and assemble individual brake components. It uses an electric magnet to actuate the shoes, with the magnet wire lead colored yellow for easy identification during wiring. The self-adjusting design automatically compensates for shoe wear as the brake is used, helping maintain consistent stopping performance without manual adjustment. Rated at 10,000 lbs of capacity per pair, this brake is intended for use on 9,000 to 10,000 lb capacity trailer axles.

Each kit includes the assembled brake unit and an instruction sheet for installation; mounting hardware is not included and should be sourced separately or reused from the axle flange. Dexter builds this brake assembly in the USA.

Specifications

• Brand: Dexter
• Manufacturer Part Number: K23-451-00
• Side: Right Hand (Passenger Side)
• Brake Size: 12-1/4 inches x 3-3/8 inches
• Axle Capacity: 9,000 to 10,000 pounds
• Bolt Pattern: 7-bolt
• Rated Capacity: 10,000 pounds per pair
• Brake Type: Electric, forward self-adjusting
• Duty Rating: General duty (9K-10K GD)
• Magnet Wire Color: Yellow
• Weight: 20.15 pounds
• Package Dimensions: 13 x 13 x 6 inches
• UPC: 876983002023
• Mounting Hardware: Not included

Fitment

Fits 9,000 to 10,000 lb capacity trailer axles with a 7-bolt mounting pattern. This is the right hand (passenger side) brake assembly; a left hand (driver side) version is available as a separate Dexter part number.

Frequently Asked Questions

What size is the Dexter K23-451-00 brake assembly? The K23-451-00 is a 12-1/4 inch x 3-3/8 inch electric trailer brake assembly.

What axle capacity does the K23-451-00 fit? It fits 9,000 to 10,000 lb capacity trailer axles with a 7-bolt mounting pattern, and is rated for 10,000 lbs of capacity per pair.

Is K23-451-00 a right-hand or left-hand brake? K23-451-00 is the right hand, passenger side brake assembly. A left hand, driver side version is sold under a separate Dexter part number, so confirm you order the correct side for your axle.

Does this kit include mounting hardware? No, mounting hardware is not included with the Dexter K23-451-00 brake assembly.

How much does the K23-451-00 brake assembly weigh? The Dexter K23-451-00 weighs 20.15 pounds.

What color is the electromagnet wire on this brake? The electromagnet on the K23-451-00 has a yellow wire lead.

Is the K23-451-00 self-adjusting? Yes, it is a forward self-adjusting electric brake assembly that automatically compensates for shoe wear.

What duty rating is the K23-451-00 brake? It carries a 9K-10K general duty (GD) rating.

What comes in the box with this brake kit? The K23-451-00 kit includes the fully assembled electric brake unit and an instruction sheet; mounting hardware is not included.

Is K23-451-00 a genuine Dexter part? Yes, K23-451-00 is a genuine Dexter brake assembly, not an aftermarket equivalent.

What is the UPC for the Dexter K23-451-00 brake assembly? The UPC for the K23-451-00 is 876983002023.

Where is the K23-451-00 brake assembly made? Dexter manufactures the K23-451-00 brake assembly in the USA.