Shop 2009 BMW M6 Engine Timing Chain Tensioner. 325i, 525, M3; Lower. 525i, 530i; Lower. 528i; Lower LOWER, Rail, CAMSHAFT - OEM BMW Part # 11311703717 (11-31-1-703-717)

Tensioner. Chain. Guide. Engine Timing.
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 out of sync crankshaft to camshaft Timing. Crank To Cam.

Engine Timing Chain Tensioner

325i, 525, M3; Lower. 525i, 530i; Lower. 528i; Lower. All Models. X3; LOWER; Tensioner Rail. X5; LOWER; Tensioner Rail. Z3; Lower. Z3; Lower; Rail. Z3; LOWER; Tensioner Rail. Z4; Lower; Tensioner Rail.