20V Blacktop Hydraulic Timing Belt Tensioner

Brand new AE111 Hydraulic Timing Belt Tensioner.

Due to the high compression ratio, Blacktop is the only engine of the 4AG series that will have piston-to-valve contact if the belt slips or breaks.  Slippage can occur if the hydraulic tensioner has become weak or fails.

These tensioners are recommended to be replaced every other timing belt change but we like to replace them any time the belt is off for maintenance as it is cheap insurance.