If you need to replace your idler hub, go with a trusted name and get a genuine Lippert™ replacement part. For ultimate peace of mind on the road, replace your idler hub with this Lippert™ Idler Hub, designed for 3,500 lb. trailer idler axles, with a 6 on 5.5” bolt pattern, and made from durable, solid iron. This bulk item comes with the hub only, not the full assembly. A one-year warranty comes standard. Confirm the bolt pattern, axle rating, and other dimensions before purchasing. If you have questions, consult your original equipment manufacturer.