Mercury Tapered Bearing Group (31-33138A1)

The Mercury Tapered Roller Assembly (31-33138A1) is a genuine Mercury spare part for Mercury marine engines and sterndrive drive systems. It ensures stable and quiet operation of rotating components by distributing axial and radial loads evenly. In Mercury engines, tapered roller assemblies maintain correct alignment even under high torque, minimize friction, and increase power transmission efficiency. This design directly contributes to the long-lasting and reliable operation of the drive system.

Bearings operating in marine environments are subjected to harsh conditions such as continuous rotation, high loads, vibration, and saltwater. Tapered roller bearings that wear or develop surface damage over time can lead to increased noise, vibration, and performance loss. The Mercury Tapered Roller Bearing Group (31-33138A1) minimizes these risks, maintains system compatibility, and extends maintenance intervals thanks to its robust metal construction and original dimensional tolerances.

Mercury Tapered Roller Bearing Group Specifications

The Mercury tapered roller bearing assembly with code 31-33138A1 is compatible with many Mercury marine engines and MerCruiser propulsion systems. When used with correct installation and regular maintenance, it optimizes load distribution, reduces friction, and provides quieter operation. Using genuine Mercury tapered roller bearings during maintenance and repair ensures your engine operates close to its factory-standard performance and provides reliable long-term use.