10K Idler Hub Kit – Lippert LCI Post-2020 “Short” Spindle – 8 on 6.5"
10,000 lb idler hub kit designed for Lippert (LCI) post-2020 “short” spindle 10K axles. Intended for use with Lippert 791399 heavy-duty drum systems and LCI 4" oil cap configuration.
Hub features a 4.77" pilot diameter, 8 on 6.5" bolt pattern, and 5/8"-18 wheel studs.
R&P Knowledge Hub
Lippert post-2020 10K “short” spindle axles use specific bearing combinations and a 4.77" pilot hub design that differs from earlier long-spindle configurations. These hubs are designed for oil bath systems and require correct oil cap and drum pairing.
Short spindle versions are not interchangeable with prior Lippert 10K configurations. Always confirm spindle style, bearing numbers, pilot diameter, and drum compatibility before ordering.
Dimensional Reference
| Measurement | Specification |
| Overall Flange Diameter | 8-1/2" |
| Overall Height | 5" |
| Stud Size | 5/8"-18 |
| Stud Length | 2-1/4" |
Features
- Fits Lippert (LCI) 10K Post-2020 “Short” Spindle Axles
- 8 on 6.5" bolt pattern
- 4.77" pilot diameter
- 5/8"-18 wheel studs
- Designed for Lippert 791399 HD drum
- LCI 4" oil cap configuration
Specifications
| Specification | Detail |
| Part Number | 791398-KIT |
| Hub Model | 791398 (Idler) |
| Axle Rating | 10,000 lb |
| Spindle Type | Lippert Post-2020 “Short” |
| Bolt Pattern | 8 on 6.5" |
| Pilot Diameter | 4.77" |
| Outer Bearing | 25580 (1.75" ID) |
| Inner Bearing | 387A (2.25" ID) |
| Stud Size | 5/8"-18 |
Kit Includes
- 1 – 791398 Idler Hub
- 1 – 25580 Outer Bearing
- 1 – 387A Inner Bearing
- 8 – 5/8"-18 Lug Nuts
Verify specifications before installation.
