Honda K20Z3/K24Z Belt Tensioner

The Honda Auto Belt Tensioner, 31170-RAA-A02, is an important engine component that keeps the drive belt tight during operation and reduces the wear on the belt. With a bad tensioner, the belt will wear at an accelerated rate, which could cause premature belt failure and possibly damage other vital pieces of the engine. This belt tensioner is designed for RBB/RBC engines such as the K20Z3, K24A4, K24A8, and K24Z7.  The genuine Honda belt tensioner is mounted to the water pump assembly on the K Series.