Eatons are available in sizes: M112 & M90 & M62 & M45. Chances are your bearings are due to be replaced. The oil seals tend have to be replaced around 100,000 miles. This is the easiest and oldest kit on the market.
Range Rover Sport 4.2 litre Eaton M112 Supercharger Bearings Rebuild Kit nose
Jaguar XJR XKR S 4.0 4.2 Eaton M112 Supercharger Bearings Rebuild Kit 98-04
Ford F150 SVT Lightning 5.4 Eaton M112 supercharger oil refill kit 1999 2000+
Eaton M90 Supercharger Snout Rebuild Repair Bearing Kit SKF
Eaton M45 Supercharger Snout Rebuild Repair Bearing Kit Mini Cooper SKF
Eaton M62 Supercharger Snout Rebuild Repair Bearing Kit