12" x 2" Hybrid 8K Trailer Brake Drum — 8 on 6.5" — 5/8" Stud — 4.75" Pilot
Replacement-style hybrid trailer brake drum for 8,000 lb axle applications using 12" x 2" brakes, 8-lug wheels, larger 8K bearing sizing, and a 4.75" pilot. Application reference for Lippert / LCI L347627 hybrid drum setups where all measurements match.
Overview
This 12" x 2" hybrid 8K trailer brake drum is designed for applications using the Lippert / LCI L347627 hybrid drum style. It is commonly found on many 8,000 lb axle setups used on Kaufman, Sure-Trac, and other trailers equipped with LCI / Lippert hybrid axle components. The drum is built for an 8-lug, 6.5" bolt circle wheel pattern with a 4.75" pilot hole and 5/8" stud/lug setup.
R&P Service Insight
Hybrid brake drums need to be matched by more than axle rating alone. Confirm the brake size, bolt pattern, pilot, bearing set, and seal size before ordering.
- Brake Size: Designed for 12" x 2" electric brake assemblies.
- Wheel Pattern: 8 lug on 6.5" bolt circle with 4.75" pilot.
- Bearing Setup: Uses larger 8K-style bearing sizing listed below.
R&P Knowledge Hub
Compatibility: Replacement-style drum for Lippert / LCI L347627 hybrid drum applications where bearing numbers, seal size, pilot, bolt circle, and brake size match.
Trailer / Axle Fit: Commonly used on many 8,000 lb hybrid axle setups on Kaufman, Sure-Trac, and similar trailers using LCI / Lippert 8K hybrid axle components.
Installation Notes: This listing is for one drum only. Bearings, seal, oil cap, plug, O-ring set, and lug nuts are not included.
Performance Insight: This hybrid drum allows 12" x 2" brake compatibility while using the larger bearing arrangement associated with 8K axle service.
Brand & Fitment Note
Selling SKU: 99-865-58HD
Replacement Reference: Lippert / LCI L347627 hybrid drum applications.
What This Listing Includes: One 12" x 2" hybrid 8K trailer brake drum.
Before Ordering: Match your existing drum, bearing numbers, seal size, bolt pattern, pilot diameter, brake size, and stud/lug configuration. Buyer is responsible for verifying fitment before installation.
R&P Repair Insight
If your trailer uses 12" x 2" brakes but has larger 8K-style bearing requirements, this is the type of hybrid drum configuration that must be verified carefully. Do not order by axle rating alone.
- Check the Drum: Confirm the casting, pilot, bolt pattern, stud/lug setup, and brake surface size.
- Check the Bearings: This setup uses 25580 inner bearing and 02475 outer bearing references.
- Check the Seal / Cap: Verify the 3.38" x 2.25" oil seal and oil cap setup before installation.
Features
Hybrid 8K Drum Configuration
Designed for hybrid axle applications using 12" x 2" brakes with larger 8K-style bearing sizing.
Lippert L347627 Application Reference
Replacement-style fitment reference for Lippert / LCI L347627 hybrid drum applications where dimensions match.
8 Lug Wheel Pattern
Uses an 8-lug, 6.5" bolt circle wheel pattern with a 4.75" pilot hole.
12" x 2" Brake Compatibility
Built for 12" x 2" trailer brake assemblies used in compatible hybrid axle service configurations.
Specifications
| Specification | Detail |
|---|---|
| Part Number | 99-865-58HD |
| Listing SKU | 99-865-58HD |
| Replacement Reference | Lippert / LCI L347627 Hybrid Drum Applications |
| Product Type | Trailer Brake Drum |
| Quantity Included | 1 Drum |
| Brake Size | 12" x 2" |
| Axle Rating Reference | 8,000 lb Hybrid Application |
| Stud / Lug Setup | 5/8" Stud / Lug Configuration |
Fitment / Application
| Category | Details |
|---|---|
| Primary Fit | Lippert / LCI L347627 hybrid drum applications where all measurements match |
| Common Trailer Use | Many Kaufman, Sure-Trac, and other trailers using LCI / Lippert 8K hybrid axle setups |
| Brake Compatibility | 12" x 2" trailer brake assemblies |
| Fitment Notes | Verify bearing numbers, seal size, pilot, bolt circle, brake size, and stud/lug configuration before ordering. |
Detailed Measurements
| Key Dimension | Measurement |
|---|---|
| Brake Drum Size | 12" x 2" |
| Bolt Pattern | 8 Lug on 6.5" Bolt Circle |
| Pilot Hole | 4.75" |
| Inner Bearing Reference | 25580 / 1.75" |
| Outer Bearing Reference | 02475 / 1.25" |
| Oil Seal Reference | 3.38" x 2.25" |
Included Components
| Quantity | Item |
|---|---|
| 1 | 12" x 2" Hybrid 8K Trailer Brake Drum — PN 99-865-58HD |
| Not Included | Bearings, oil seal, oil cap, plug, O-ring set, and lug nuts are not included unless otherwise stated in your order details. |
Common Service Parts Used With This Drum
| Quantity | Part / Reference |
|---|---|
| 1 | 25580 Inner Bearing — 1.75" |
| 1 | 02475 Outer Bearing — 1.25" |
| 1 | 3.38" x 2.25" Oil Seal |
| 1 Set | Oil Cap, Plug, and O-Ring Set — PN 277223 or K71-038-00 |
| 8 | 5/8" Lug Nuts |
