Shop 1985 Buick Century Engine Timing Chain Tensioner. Acadia; Lower; Tension Side. ATS; Lower; Tension Lower, Side, Left, Arm - OEM Buick Part # 12627112

Chain. Guide. Tensioner. Arm. 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.

Engine Timing Chain Tensioner

Acadia; Lower; Tension Side. ATS; Lower; Tension Side. ATS; Lower; Tensioner Side. Blazer; Lower; Left. Camaro; Lower; Tensioner Side. Canyon, Colorado; Lower; Right (Tensioner Arm). CT6; Lower; Arm, Tensioner. CTS; Lower; Left. Envision. Envision; Lower; Tension Side. Equinox, Terrain; Lower; Left. Impala; Lower; Left. LaCrosse; Lower; Tension Side. Malibu; Lower; Left. Regal. Regal Sportback; Lower; Tensioner Side. Regal TourX; Lower; Tensioner Side. Traverse; Lower; Left.