- Dexter and AL-KO drum compatibility
- Replacement parts availability
- Reliable fitment for heavy-duty trailer applications
Complete Your Brake Service
When replacing backing plates, we recommend inspecting:
Brake Components
Electrical Components
Installation Tips
- Replace LH and RH backing plates together where possible for balanced braking.
- Inspect the brake drum for scoring, heat damage and excessive wear.
- Check the magnet running surface inside the drum.
- Correctly adjust the brake shoes after installation.
- Recheck brake adjustment after the initial bedding-in period.
- Inspect all trailer brake wiring and connections.
- Test the electric brake controller and breakaway system before towing.
Frequently Asked Questions
Is this a genuine Dexter backing plate?
Yes. This is a genuine Dexter USA product manufactured in the USA.
Is the backing plate sold as a pair?
No. Backing plates are sold individually.
Select either Left-Hand or Right-Hand when ordering.
For one complete axle you will require one of each.
What are the part numbers?
- Left-Hand: K23-112-00
- Right-Hand: K23-113-00
What size brakes does it suit?
It is designed for 12" × 2" electric drum brakes.
What axle capacity is it rated for?
It is designed for 6,000 lb (approximately 2,720kg) trailer axles.
Is it self-adjusting?
No. This is a manual-adjust backing plate.
Does it include the brake shoes?
Yes. Brake shoes are already installed.
Does it include the electric brake magnet?
Yes. A genuine Dexter electric brake magnet is included.
Does it have a park brake lever?
Yes. A horizontal park brake lever is fitted.
Are the mounting bolts or studs included?
Yes.
Are the mounting nuts and washers included?
Yes.
Does it fit Dexter brake drums?
Yes. It suits compatible Dexter 12" electric brake drums.
Does it fit AL-KO brake drums?
Yes. It also suits compatible AL-KO 12" electric brake drums.
Does it suit hydraulic brakes?
No. This assembly is designed for electric drum brakes only.
Why Buy From Trailer Spares Online?
- Genuine Dexter products
- USA-manufactured trailer brake components
- Australia's trailer parts specialists
- Expert technical advice
- Fast Australia-wide shipping
- Large range of Dexter and AL-KO braking components
- Local Australian support
Shipping Info
All orders are dispatched next business day from QLD.
Shipping is calculated at checkout based on your location.
Shipping is calculated at checkout based on your location.
Warranty
All products are backed by a 12‑month manufacturer warranty.
Need Help?
Call our team on 07 3393 9463 for product advice and support.
Product Details
- Sold individually — choose left or right side
- Suits 12" electric brake drums with park brake provision
- Mounting: 5-bolt flange for heavy-duty axles
- Rated to 2,720 kg (6,000 lb) per axle
- Includes full backing plate assembly with brake shoes, springs, magnet, and park lever
- Designed to fit Dexter part K23‑113‑00 and comparable mounting configurations
- Note: We recommend replacing both left and right sides at the same time for balanced braking performance