Rebuilt Navistar differentials

Rebuilt Navistar differentials ready to ship worldwide, and a warehouse stocked with the parts to rebuild one.

We stock rebuilt Navistar differentials and ship them worldwide. Our warehouse also carries rebuild kits, bearing kits, ring and pinion sets and any other related part you may need, at discounted prices.

Navistar is the parent company behind International trucks, so a Navistar differential and an International differential are often the same unit under two names. For the classic I.H.C. axle models (RA351, RA472, N400 and the two-speed units), see rebuilt International differentials.

Navistar RA-42

The carrier shown is an International RA-42 Navistar differential. Have the model and ratio from the axle tag ready when you contact us, and we can match it.

Signs your differential needs attention

Every drive axle on a truck, front or rear, has a differential that takes heavy wear. How fast it wears depends on where the truck works:

• Terrain. Dirt, gravel and unpaved roads, and hard or extreme driving, shorten differential life compared with highway miles.
• Fluid. A differential fluid change on the normal maintenance schedule helps the safety and life of the unit. Maintenance needs differ from truck to truck.
• Noise. A new noise from the differential can mean low lubricant, or gears and bearings worn from normal wear and tear.

At the first sign of trouble, contact our Navistar differential specialist so the problem can be diagnosed and corrected before it turns into a failed unit. Parts are available in our online store under Navistar International differential parts.