Idler Hub Complete Kits with Installed Bearings – 3,500-lb Axles
Specifications
Material: Cast Iron
Axle Capacity: 3,500 lbs
Hub Style: Idler Hub
Hardware Type: Hub
Stud Length: 1.25"
Wheel Size: 13"–15"
Warranty: 1 Year
Country of Origin: USA / China
Lippert Idler Hub Complete Kits with Installed Bearings – 3,500-lb Axles
Lippert idler hub assembly kits are engineered to maintain smooth operation and extend the life of your trailer axles. Designed for idler axles (non-braking), these genuine replacement hubs are compatible with both Lippert and competitor axles, providing a seamless fit and reliable performance.
Key Features
Pre-Greased Hub Assembly – Each idler hub comes fully pre-greased with installed bearings for optimal lubrication, smooth rotation, and extended component life.
All-Inclusive Kit – Includes everything needed for one wheel end: idler hub, dust cap with plug, cotter pin, 6-slot castle spindle nut, spindle washer, and 60° cone trailer lug nuts.
Durable Construction – Cast-iron hub body with corrosion-resistant, zinc-plated wheel studs ensures long-lasting strength and reliability.
Universal Compatibility – Fits Lippert and competitor axles, simplifying replacements across a wide range of trailer systems.
Easy Installation – Ready to install with minimal tools; accepts press-in dust caps for convenience.
Available Models
| Axle Rating | Bolt Pattern | Stud Size | Wheel Size | Included Components |
| 3,500 lbs | 5 on 4.5" | 1/2" | 13"–15" | Idler hub, dust cap, cotter pin, 6-slot castle nut, spindle washer, 5 lug nuts |
| 3,500 lbs | 5 on 5" | 1/2" | 13"–15" | Idler hub, dust cap, cotter pin, 6-slot castle nut, spindle washer, 5 lug nuts |
Installation & Notes
Confirm bolt pattern, axle rating, bearing numbers, and wheel dimensions before purchasing.
Regular maintenance ensures smooth operation and prevents premature wear.
| Idler Hub Kits Model | 3,500-lb. 5 on 4.5", 13-15" Wheel Size, 1/2" Studs or 3,500-lb. 5 on 5", 13-15" Wheel Size, 1/2" Studs |















