Dexter 12 Inch x 2 Inch Right Hand Hydraulic Brake Assembly K23-343-00, 7000 lb Free-Backing, 5-Bolt

The Dexter K23-343-00 is a complete 12 inch x 2 inch right hand (passenger side) hydraulic drum brake assembly built for Dexter 7,000 lb trailer axles. This is a Free Backing design with a single servo and single plunger coming from the wheel cylinder, which is the most common style used on Dexter hydraulic drum brake axles. The assembly is engineered for a 7,000 lb capacity per axle pair and mounts using a 5-bolt pattern (mounting bolts not included). It is sized to work with 12 inch hubs and drums, making it a direct fit for trailer owners replacing worn or damaged hydraulic brake components on their Dexter 7K axle.

Because this is the right hand (passenger side) unit, it should be paired with the corresponding left hand assembly (a separate part number) for a complete axle brake set. As a complete assembly, the K23-343-00 simplifies replacement by supplying the full hydraulic brake mechanism rather than individual components, reducing the need to source and match separate parts.

Specifications

• Brand: Dexter
• Manufacturer Part Number: K23-343-00
• Product Type: Hydraulic Drum Brake Assembly
• Brake Position: Right Hand (Passenger Side)
• Brake Size: 12 inches x 2 inches
• Capacity: 7,000 pounds per axle pair
• Brake Design: Free Backing, single servo, single plunger
• Mounting: 5-bolt (mounting bolts not included)
• Hub/Drum Compatibility: 12 inch hub/drum
• Product Dimensions: 13 x 13 x 3 inches
• Weight: 16 pounds
• UPC: 876983002856

Fitment

• Dexter 7,000 lb hydraulic drum brake axles using 12 inch x 2 inch Free Backing right hand brakes

Replaces (OEM)

• No OEM cross-reference numbers available

Frequently Asked Questions

Which side does the K23-343-00 fit? The K23-343-00 is the right hand (passenger side) brake assembly. The matching left hand assembly for the other side of the axle carries a different Dexter part number.

What size drum brake is this? This is a 12 inch x 2 inch hydraulic drum brake assembly, sized to work with 12 inch hubs and drums.

What weight capacity is this brake rated for? The K23-343-00 is built for a 7,000 pound capacity per axle pair, matching Dexter's 7K hydraulic drum brake axles.

Is this a complete brake assembly or just individual parts? The K23-343-00 is a complete hydraulic brake assembly, not individual components, which simplifies replacement on a Dexter 7,000 lb axle.

What type of servo design does the K23-343-00 use? It uses a Free Backing design with a single servo and a single plunger coming from the wheel cylinder, the most common style on Dexter hydraulic drum brakes.

How does the brake mount to the axle? The K23-343-00 uses a 5-bolt mounting pattern; mounting bolts are not included with the assembly.

How much does the K23-343-00 weigh? This Dexter brake assembly weighs 16 pounds.

What are the overall dimensions of the packaged assembly? The K23-343-00 has product dimensions of 13 x 13 x 3 inches.

Do I need to buy a left hand assembly separately? Yes, since the K23-343-00 is the right hand (passenger side) unit only, the left hand side of the axle requires a separate Dexter part number.

Will this fit a 12 inch hub and drum setup? Yes, the K23-343-00 is designed for use with 12 inch hubs and drums on Dexter 7,000 lb hydraulic brake axles.

What brand is this brake assembly? This is a genuine Dexter brake assembly, part number K23-343-00.