Backed by our guaranteed-fit promise.
Give your heavy-duty trailer dependable stopping power with this genuine Lippert Components bundle. You get four forward self-adjusting 12.25″ × 3.38″ electric brake assemblies plus four factory-greased hub/drums (8-on-6.5 bolt pattern, 5/8″ studs) for smooth, consistent braking and straightforward DIY installation on 8,000-lb tandem axles.
Always verify bolt pattern, brake size and axle rating against your original equipment. Inspect and service brakes and bearings regularly for peak performance and extended component life.
Product image for reference only — minor cosmetic details (casting style, cap color, stud protectors, packaging) may vary between production runs. All items ship to the exact specifications listed.
| Specifications: | |
|---|---|
| Kit Type | Complete Tandem-Axle Electric Brake & Grease Hub Kit |
| Axle Rating | 8,000 lbs per axle |
| Brake Drum Dimensions | 12.25″ × 3.38″ |
| Brake Mounting Pattern | 4-bolt |
| Hub Bolt Pattern | 8-on-6.5″ |
| Hub Type | Hub with Integrated Drum (greased) |
| Stud Size | 5/8″ |
| Type of Adjustment | Forward Self-Adjusting |
| Brake Location | Left-hand & Right-hand assemblies |
| Wheel Size Compatibility | 16″, 16.5″, 17″, 17.5″ |
| Brand | Lippert Components |

Lippert 8K Tandem-Axle Self-Adjusting 12.25 3.38 Electric Brake Assemblies & Pre-Greased 8-on-6.5 Drum Hub Kit (9/16 Studs) Dexter/Alko/Rockwell Compatible
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Lippert 8K Triple-Axle 12.25 3.38 Self-Adjusting Electric Brake Assemblies & Grease Drum Hub Kit 8-on-6.5 (9/16) Dexter/Al-Ko Compatible
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Lippert 8K Self-Adjusting LH 12.25 3.38 Electric Brake & 8-on-6.5 Grease Hub Kit 5/8 Studs Dexter / Alko / Rockwell Compatible
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Lippert 8K 12.25 3.38 Self-Adjust Electric Brake & 8-on-6.5 Grease Hub Kit Dexter, Al-Ko, Rockwell Compatible
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Lippert 8,000-lb Single-Axle Self-Adjusting 12.25 3.38 Electric Brake Assemblies & 8-on-6.5 Grease Drum Hub Kit (9/16 Studs) Compatible with Dexter, Alko & Rockwell
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Lippert 12.25 3.38 8K RH Self-Adjusting Electric Brake + Greased 8-on-6.5 Hub/Drum Bundle Dexter / Alko / Rockwell Compatible
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Lippert 12K Tandem-Axle Electric Brake & Hub-Drum Kit 12.25 5 Self-Adjusting Brakes, 8-on-6.5 Hubs, 5/8 Studs Fits Dexter, Alko, Rockwell, Quality Axles
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Lippert 8K Triple-Axle 12.25 3.38 Electric Brake Assemblies & 8-on-6.5 Grease Hub Kit Dexter/Alko Compatible
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Lippert 8K 12-1/4" x 3-3/8" Right-Side Electric Brake & 8-on-6.5 Grease Hub Drum (9/16" Stud) Bundle Dexter / Alko / Rockwell Compatible
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Lippert 8K Triple Axle 12.25 3.38 Electric Brake Assemblies & 8 on 6.5 Threaded Hub Kit (5/8 Studs) Dexter, Alko, Rockwell, Quality Axles Compatible
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