International RH Hub Adapters

Frequently Asked Questions About International RH Hub Adapters

What is a hub adapter and why does my International truck need one on the right-hand side?

A hub adapter is a machined component that mounts between the wheel hub and the brake drum or rotor, allowing the wheel end assembly to accept a different bolt pattern or drum/rotor configuration than the hub was originally designed for. On International trucks, the right-hand (RH) side adapter is specific to that side because drive-side hardware, rotation, and in some cases threading can differ from the left-hand side. Using the correct RH adapter ensures the drum or rotor seats properly and the wheel end functions safely.

How do I know if a hub adapter will fit my specific International model and axle?

Fitment depends on your truck's exact axle type, hub configuration, and whether you are running drum or disc brakes. Before ordering, check your axle manufacturer, model year, and existing bolt pattern against the product's listed specifications. If you are unsure, having your VIN or axle tag information on hand when contacting our parts team will help confirm the correct adapter for your application.

What materials are these hub adapters made from, and does that affect durability?

Hub adapters in this category are typically machined from cast or forged steel to handle the load and rotational stress placed on wheel end components. The material and machining quality directly affect how well the adapter holds tolerances over time, which is important for maintaining proper wheel balance and reducing premature wear on bearings and seals.

Can I install a hub adapter myself, or should it be done by a professional?

Installing a hub adapter involves removing the wheel end, hub, and existing brake components, which requires proper tools, torque specifications, and safety precautions. While experienced technicians or fleet maintenance staff may be comfortable doing this themselves, we recommend having the installation performed or at least verified by a qualified commercial truck technician, since improper installation can affect braking performance and wheel retention.

Will changing to a hub adapter affect my truck's braking performance or warranty?

A correctly fitted hub adapter should not negatively affect braking performance, since its purpose is to allow compatible drum or rotor hardware to mount properly. However, using an adapter to fit non-matching components outside the manufacturer's intended configuration can impact performance and may affect warranty coverage on related drivetrain or brake parts. Always confirm compatibility with your axle and brake system before installation, and consult your warranty documentation if you have questions.