Honda K20Z3/K24Z Belt Tensioner 31170-RAA-A02

The Honda K20Z3/K24Z Belt Tensioner (OEM Part #31170-RAA-A02) maintains optimal serpentine belt tension for reliable engine performance. This genuine component automatically adjusts to compensate for belt wear, preventing slippage and ensuring proper power delivery to alternator, water pump, and air conditioning systems. Direct fit for K-series engines in Honda Civic Si and Acura RSX models. Engineered to OEM specifications for durability and longevity. Replace worn tensioners to restore charging efficiency and prevent accessory belt failure.