K23-438/439 Electric Trailer Brake 12.25 x 4” 7 Holes (Yellow wire)

K23-438/439 Electric Trailer Brake

The electric trailer brake K23-438 is fully assembled and aims to replace the electric trailer brake assembly. 12-1/4 x 4 inch drum size. Suitable for the left side of the trailer, with a 10000 pound axle. Self adjustable for better performance and braking power.

• Brake Style:Electric
• Drum Size:12-1/4 x 4 inches
• Brake Fit:Left
• Capacity:10,000 lbs.
• Bolt Hole Pattern:7
• Self Adjusting:Yes
• Dexter Number:K23-438-00
• Note:Requires electric brake controller (sold separately)
• MPN: K23-438

 

Types of Electric Brake

86435 L/R 10`Electric Brake	86435-S L/R 10`Electric Brake(self-adjusted)	86437 L/R 12`Electric Brake
86437-S L/R 12`Electric Brake (self-adjusted)	86439 L/R 12`Electric Brake (heavy duty) 7K	K23-438/439 12.25 x 4” Electric brake7 holes(Yellow wire)
K23-442/443 12.25 x 5” Electric brake7 holes (Black wire)	K23-446/447 12.25 x 5” Electric brake7 holes (blue wire)	K23-450/451 12.25 x 3-3/8” Electric brake7 holes (Yellow wire)

Reasons Why Brake Hardware Should Be Replaced 

1. Worn, weak return spring s will cause the brake lining s to drag against the drum and cause premature brake failure.
2. Hold-down spring s will lose their tension and allow the brake shoes to wobble or ride up against the face of the brake drum, causing premature lining failure.
3. A frozen adjusting screw will not allow shoes to be adjusted properly.
4. Rubber dust plugs will crack with age and allow dirt to contaminate linings. (Not shown.)
5. A stretched self-adjusting cable prevents the self-adjusting lever from properly aligning the shoes. (Not shown or illustrated.)

 

The Importance of High-quality Towing and Electric Braking 

It is likely that you have realized that in the appropriate time frame, to completely stop the vehicle and its trailer, more than just the tractor's brakes are required. Considering the weight and speed of the trailer, it is obvious that the trailer also needs to tilt using its braking force.This is achieved through the brakes of the trailer, which can be one of two types: surge (mechanical or hydraulic), which relies on inertia for automatic deceleration, or electric brakes that require electrical connection to the towing vehicle to operate. The principle behind the surge (also known as override or overspeed) brake is simple.The coupling includes a sliding shaft connected to the tow ball. Due to vehicle deceleration, the axle slides when pushed and applies pressure directly to the mechanical linkage (mechanical brake) or the linkage connected to the hydraulic cylinder, thereby generating hydraulic pressure on the braking system (hydraulic brake). These often appear on camping trailers or boat trailers.The electric trailer brake generates wear and slows down the trailer by activating the electromagnetic brake drum. When the surge brake operates independently, the electric trailer brake must be connected to the power supply of the towing vehicle and adjusted by the brake control unit or electric brake controller.