Shop 2010 BMW M6 Engine Timing Chain Tensioner. M3; Lower. Z4; Lower. CAMSHAFT and TIMING. CRANKSHAFT CAMSHAFT, CRANKSHAFT - OEM BMW Part # 11317836441 (11-31-7-836-441, 11317830557)

Chain Tensioner - Twin CHAI. Engine Timing Chain Tensioner. Tensioner Arm.
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

Fits M3, Z3, Z4

M3; Lower. Z4; Lower.