Buy OEM 2009 Subaru Part # 13142AA240. Engine Timing Chain Tensioner (Outer). Camshaft and timing belt. CAMSHAFT, Crankshaft

An Oil pressurized Tensioner that keeps the Chain that runs from the Crankshaft to Camshaft or the Chain that runs from Camshaft to Camshaft. from becoming loose and jumping a Tooth or more causing Engine damage or of SYNCRON Crankshaft to Camshaft Timing.

TENSIONER-CHAIN Engine Timing Chain Tensioner

Fits Ascent, Crosstrek, Forester, Legacy, Outback