Buy 2006 Audi A4 Avant Wagon Engine Timing Chain Tensioner. 2.8 LITER, 6 CYLINDER, upper. 3.2 LITER Upper, CAMSHAFT, TT - OEM Audi Part # 066109509A (066-109-509-A)

Engine Timing Chain Tensioner. Tensioner Rail.
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. Idler to Cam.

Engine Timing Chain Tensioner

Fits A3, TT

2.8 LITER, 6 CYLINDER, upper. 3.2 LITER, upper. A3. Eos. Eurovan. GTI; Upper. Jetta; Upper. R32. Touareg; 3.2L. TT. TT; Right.