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Replacement 3-piece brake adjuster set for 10" and 12" electric trailer drum brake assemblies. Includes the adjuster screw, adjuster cylinder, and spring used to help maintain proper shoe-to-drum clearance.
This listing is for one 3-piece brake adjuster set designed for 10" and 12" electric trailer brake backing plates. The set includes the adjuster screw, adjuster cylinder, and spring. These parts work together to control brake shoe expansion and help maintain proper clearance between the brake shoes and drum surface. This set is for electric drum brake systems only and is not intended for hydraulic brake assemblies.
This is not a complete brake hardware kit. It is the specific 3-piece adjuster set used to service the brake shoe adjustment mechanism on compatible electric drum brake assemblies.
Compatibility: Designed for 10" and 12" electric trailer brake assemblies.
Vehicle / System Fit: Trailer electric drum brake systems using compatible 10" or 12" backing plate assemblies.
Installation Notes: On manual-adjust brake assemblies, the adjuster is accessed through the backing plate adjustment slot. In self-adjusting systems, the adjuster works with the automatic adjuster lever.
Performance Insight: Proper brake adjustment helps keep braking response consistent and can reduce uneven brake lining wear.
Selling Reference: Replacement trailer brake adjuster hardware.
Application Reference: 10" and 12" electric trailer drum brake backing plates.
What This Listing Includes: One 3-piece brake adjuster set: screw, cylinder, and spring.
Before Ordering: Verify your brake size and confirm that your assembly is electric drum, not hydraulic.
Brake adjuster parts are small, but they matter. If the screw, cylinder, or spring is worn, seized, missing, or incorrectly matched, the brake shoes may not maintain the correct distance from the drum. That can lead to weak brake response, uneven wear, or repeated adjustment issues.
Includes three total pieces: adjuster screw, adjuster cylinder, and spring.
Designed for common 10" and 12" electric trailer drum brake assemblies.
For electric drum brake systems only. Not designed for hydraulic brake assemblies.
Useful when replacing worn, damaged, seized, or missing brake adjuster components.
| Specification | Detail |
|---|---|
| Part Number | 043-004-00 |
| Product Type | 3-Piece Brake Adjuster Set |
| Total Pieces Included | 3 Pieces |
| Included Components | Adjuster screw, adjuster cylinder, adjuster spring |
| Brake Sizes | 10" and 12" |
| Brake Type | Electric drum only |
| Hydraulic Compatible | No |
| Application | Trailer electric drum brake service |
| Material / Finish | Not specified in supplied product information |
| Category | Details |
|---|---|
| Vehicle / System | Trailers with electric drum brakes |
| Primary Fit | 10" and 12" electric brake backing plate assemblies |
| Common Uses | Brake adjuster repair, shoe clearance adjustment, backing plate hardware service |
| Notes | This is a 3-piece adjuster set only. It does not include brake shoes, drums, magnets, or a full brake hardware assortment. |
| Check Point | Required Match |
|---|---|
| Brake Assembly Size | 10" or 12" |
| Brake System Type | Electric drum brake |
| Hydraulic Brake Use | Not compatible |
| Service Function | Controls brake shoe expansion and shoe-to-drum clearance |
| Quantity | Item |
|---|---|
| 1 | Adjuster screw |
| 1 | Adjuster cylinder |
| 1 | Adjuster spring |
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