Electric Trailer Brake Assembly
Dexter 12-1/4" x 2-1/2" Electric Trailer Forward Self-Adjust Brake - Left Hand
Left-hand Dexter electric forward self-adjusting brake assembly for compatible 7,200-8,000 lb trailer axle applications. Built for 12-1/4" x 2-1/2" brake setups using the correct 4-bolt mounting style.
Part Number: K23-622-00 12-1/4" x 2-1/2" Left Hand / Driver Side
Key Measurements & Specs
| Specification |
Detail |
| Part Number / SKU |
K23-622-00 |
| Brand |
Dexter |
| Product Type |
Electric forward self-adjusting trailer brake assembly |
| Brake Size |
12-1/4" x 2-1/2" |
| Side / Orientation |
Left hand / driver side |
| Quantity Included |
1 brake assembly |
Fitment / Application
| Category |
Details |
| Axle Capacity Range |
7,200-8,000 lb Dexter axle applications where the brake size and mounting match |
| Dexter Application Reference |
D80N, D75, D72, #13N, and #12V axle applications |
| Mounting Style |
4-bolt mounting style; verify flange pattern before ordering |
| Important Note |
Verify brake size, axle model, side orientation, drum compatibility, and mounting pattern before installation. |
Top Features
| Feature |
Buyer Benefit |
| Forward Self-Adjusting |
Designed to maintain brake adjustment during normal forward braking use. |
| Left-Hand Assembly |
Correct side replacement for the left / driver-side brake position. |
| 12-1/4" x 2-1/2" Size |
Matches narrow 12-1/4" brake setups that use 2-1/2" wide shoes. |
| 7.2K-8K Application Range |
Built for compatible heavy-duty Dexter axle applications in the listed capacity range. |
Overview
The Dexter K23-622-00 is a 12-1/4" x 2-1/2" electric forward self-adjusting brake assembly for the left-hand side of compatible trailer axle applications. This assembly is commonly used when replacing a worn or damaged left-side brake on Dexter 7,200-8,000 lb axle setups where the axle model, drum size, brake width, and mounting pattern match.
R&P Service Insight
Brake assemblies are side-specific and size-specific. Before ordering, match the brake diameter, shoe width, backing plate mount, and left/right orientation to the brake currently on the trailer.
-
Side Check: This listing is for the left-hand / driver-side brake position.
-
Size Check: Confirm your brake is 12-1/4" x 2-1/2", not the wider 12-1/4" x 3-3/8" style.
-
Axle Check: Confirm the axle model and mounting flange style before installation.
R&P Knowledge Hub
Compatibility: Fits compatible Dexter 7,200-8,000 lb axle applications where the 12-1/4" x 2-1/2" brake size and 4-bolt mounting style match.
Vehicle / System Fit: Trailer electric drum brake systems using Dexter D80N, D75, D72, #13N, or #12V axle applications as listed for this part number.
Installation Notes: Do not rely on capacity alone. Always verify drum size, shoe width, mounting pattern, left/right orientation, and wiring condition before replacing the brake assembly.
Performance Insight: Forward self-adjusting brakes are designed to help maintain proper shoe adjustment during normal forward braking, which can reduce manual adjustment needs when the system is installed and functioning correctly.
Brand & Fitment Note
Selling Brand: Dexter
Application Reference: Dexter axle model references are provided for fitment guidance. Final fitment should be verified by the brake size, mounting style, axle model, and the existing brake assembly.
What This Means: This listing is for one Dexter left-hand electric forward self-adjusting brake assembly, part number K23-622-00.
Before Ordering: Verify measurements, mounting style, left/right orientation, axle application, drum compatibility, and included components before installation.
R&P Repair Insight
Electric brake replacement is usually straightforward when the correct assembly is matched, but mismatched brake width, side orientation, or mounting style can stop the repair immediately. Compare the old assembly before opening or installing the new one.
-
Do Not Mix Styles: Forward self-adjusting and manual adjust brake assemblies should not be mixed by axle or by trailer.
-
Inspect the Drum: A new brake assembly should be paired with a drum that is within usable condition and matched to the correct brake size.
-
Check Wiring: Inspect magnet wiring, trailer wiring, grounds, and brake controller output while servicing the brake system.
Features
Dexter K23-622-00 Replacement Brake
Direct part-number match for Dexter K23-622-00 left-hand electric brake assembly applications.
12-1/4" x 2-1/2" Brake Size
Designed for compatible narrow 12-1/4" brake applications using 2-1/2" wide shoes.
Forward Self-Adjusting Design
Helps maintain brake adjustment during normal use when the full braking system is installed and operating correctly.
Left-Hand Trailer Brake Assembly
Side-specific assembly for the left / driver-side brake position on matching trailer axle applications.
Included Components
| Quantity |
Item |
| 1 |
Dexter K23-622-00 left-hand 12-1/4" x 2-1/2" electric forward self-adjusting brake assembly |
| Not Included |
Mounting hardware, drum, hub, bearings, seals, wiring repair parts, and right-hand brake assembly are not included unless specifically shown or selected separately. |
Important Fitment Note: Verify all measurements, axle model, brake size, shoe width, mounting pattern, left/right orientation, drum compatibility, wiring condition, and included components before installation. This listing is for one left-hand brake assembly only.
Dexter K23-622-00 left electric brake assembly, 12-1/4 x 2-1/2 electric trailer brake, Dexter 8K brake left hand, 7.2K 8K axle brake assembly, forward self adjusting brake, FSA trailer brake, 4 bolt electric brake, Dexter D80N brake, Dexter D75 D72 #13N #12V brake application, left side driver side trailer brake assembly.
