K23-442/443 Trailer Electric Brake 12.25 x 5” 7 Holes

K23-442/443 Electric Brake

12-1/4" x 5" Driver's-side electric trailer brake assembly fits 12,000-lb axles. Mounting flange has 7-bolt pattern. Self-adjusting brakes require little maintenance. Fits 15" or larger wheels.

Features:

• Electric brakes are easier to install and offer more user control than hydraulic brakes
  • Requires only an electric brake controller (sold separately) - no actuator or hydraulic lines necessary
• Self-adjusting brakes automatically adjust to deliver optimum performance and braking power
  • No need for manual brake adjustments
  • Proper adjustment leads to better brake efficiency and less wear on your tow vehicle's brakes
• Mounting bolts and hardware sold separately

Specs:

• Application: most standard hub-and-drum assemblies, including Dexter and Lippert (LCI)
• Configuration: left hand (driver's side)
• Dimensions: 12-1/4" diameter x 5" wide
• Mounting flange bolt pattern: 7 bolt
• Wheel size: 15" or larger
• Axle rating: 12,000 lbs
• Limited 5-year warranty

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)

Brake Assembly Parts

Take a look at the major parts that make up a brake assembly:

• Reactor Spring
• Actuating Arm
• Shoe Hold-Down Spring
• Primary Shoe
• Adjuster
• Adjuster Spring
• Magnet
• Secondary Shoe

How To Test Trailer Brake Magnets

Steps for Visual Inspection:1. If any coil can be seen on the center of the magnet, the magnet is worn out and should be replaced2. Take a straight edge tool and lay it across the top of the magnet. The edge of the magnet should be parallel to the straight edge all the way across. Any pitting or changes in the magnet's surface indicate abnormal wear and the magnet should be replaced.3. Inspect the magnet for grease or oil residue, if any is found replace the magnet.Testing:A multimeter that reads amps and ohms will be needed to test trailer brake magnets. The Raydafon can also be used as it has test functions built in. To test with a multimeter you will connect the ammeter inline with the blue wire exiting the back of the brake controller or use the brake controllers diagnostic readings. If the amperage is greater than the specified amount (see table below), replace the magnet or magnets. If the reading is less than the specified amount, the leads are bad and the magnet or magnets should be replaced.