Shop 2012 Cadillac Escalade EXT Engine Timing Chain Tensioner. Acadia; Right Chain; Left. ATS; Primary Left, Side, Primary, Arm - OEM Cadillac Part # 12713643 (12647880)

Chain. Tensioner. GUIDE. ASSEMBLY - Timing. 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

Acadia; Right Chain; Left. ATS; Primary Chain; Lower. ATS; Slack Side; Right. ATS; Tension Side; Left (Pivot Arm). Camaro; Left; Primary (Pivot). Canyon, Colorado; Primary Chain; Tensioner Side; Left. CT5; Left; Arm, Tension. CT6; Left; Arm, Tension. CTS; Secondary Chain; Tensioner Side; Left; w/o Vsport. LaCrosse; Left; Tension Side. Regal Sportback; Tensioner Side; Left. XT5; Left; Tension Side. XT6; Left; Tensioner Side.