AL-KO 12" x 3-3/8" Hydraulic Trailer Brake Assembly — 8,000 lb Axle - 4 Bolt
Replacement hydraulic drum brake assembly for compatible 8,000 lb trailer axle applications using 12" x 3-3/8" hydraulic brake components. Designed as a universal left-hand or right-hand brake assembly where the axle, drum, mounting pattern, and brake dimensions match.
Key Measurements & Specs
| Specification | Detail |
|---|---|
| Part Number / SKU | 568004 |
| Brand | AL-KO |
| Product Type | Hydraulic drum brake assembly |
| Brake Size | 12" diameter x 3-3/8" shoe width |
| Axle Rating Reference | 8,000 lb axle applications |
| Quantity Included | 1 complete brake assembly |
Fitment / Application
| Category | Details |
|---|---|
| Trailer System | Hydraulic drum brake trailer axle systems |
| Primary Fit | Compatible 8K axle setups using 12" x 3-3/8" hydraulic drum brakes |
| Side Position | Universal left-hand or right-hand use |
| Cross Reference | Dexter 023-527-00 reference where dimensions and application match |
| Important Note | Verify brake size, shoe width, hydraulic configuration, backing plate mount, and drum compatibility before ordering. |
Top Features
| Feature | Buyer Benefit |
|---|---|
| Hydraulic Drum Design | Built for trailer brake systems that use hydraulic actuation. |
| 12" x 3-3/8" Size | Matches compatible 8K axle brake and drum applications using this brake size. |
| Universal Side Use | Can replace either the left-hand or right-hand assembly when fitment matches. |
| Single Assembly Listing | Order quantity should match the number of brake positions being serviced. |
Overview
This listing is for one AL-KO 568004 hydraulic trailer brake assembly for compatible 8,000 lb axle applications. It is sized for 12" brake drums with a 3-3/8" brake shoe width and may be used on either side of the axle when the existing brake, drum, and mounting configuration match.
R&P Service Insight
Brake assemblies should be matched by physical size and axle brake configuration, not by axle rating alone. Confirm the old assembly and drum dimensions before replacing hydraulic trailer brakes.
- Brake Size: Confirm 12" drum diameter and 3-3/8" shoe width.
- Hydraulic System: This is for hydraulic drum brake systems, not electric brake systems.
- Side Count: This listing includes one brake assembly. Order two for one axle if both sides are being serviced.
R&P Knowledge Hub
Compatibility: Use this brake only on compatible hydraulic drum brake axle setups where the 12" x 3-3/8" size, backing plate mount, and drum clearance match the original assembly.
Vehicle / System Fit: Commonly referenced for 8,000 lb trailer axle brake systems using AL-KO style hydraulic drum brake components.
Installation Notes: Inspect the brake drum, wheel cylinder, hydraulic lines, fittings, and mounting hardware during service. Replace worn or damaged related components as needed.
Performance Insight: Correct brake size and shoe width are critical for proper drum contact, braking balance, and safe hydraulic trailer brake operation.
Brand & Fitment Note
Selling Brand: AL-KO
Application Reference: Dexter 023-527-00 is listed as a cross-reference/application reference where the brake size, axle setup, and mounting configuration match.
What This Means: This listing is for one AL-KO hydraulic drum brake assembly. Cross-reference numbers are provided to help identify compatible applications and should be verified before ordering.
Before Ordering: Verify brake diameter, brake shoe width, hydraulic configuration, backing plate mount, axle rating, drum compatibility, and quantity needed before installation.
R&P Repair Insight
Hydraulic trailer brake fitment can vary by axle generation, backing plate style, and drum setup. Match the assembly to the brake you are removing whenever possible.
- Check the Drum: Confirm the drum is made for a 12" x 3-3/8" brake assembly.
- Check the Mount: Compare the mounting pattern and backing plate style against the existing brake.
- Check the System: Confirm the trailer uses hydraulic drum brakes and not electric or disc brake components.
Features
Hydraulic Drum Brake Assembly
Designed for trailer axle applications using hydraulic drum brake actuation.
8K Axle Application Reference
Built for compatible 8,000 lb trailer axle brake systems using the listed brake dimensions.
12" x 3-3/8" Brake Size
Matches applications requiring a 12" drum diameter and 3-3/8" brake shoe width.
Left or Right Side Use
Universal side design allows use on either side when the axle and brake setup match.
Included Components
| Quantity | Item |
|---|---|
| 1 | AL-KO 568004 hydraulic trailer brake assembly |
| Not Included | Brake drum |
| Not Included | Additional axle-side brake assembly unless quantity is increased |
