Dayco 85028 Hydraulic Timing Belt Tensioner Actuator

The Dayco 85028 Hydraulic Timing Belt Actuator is engineered to maintain optimal timing belt tension throughout the engine's operating cycle. Designed to absorb changes in timing belt tension caused by variations in engine temperatures, speed or the general wear and aging of the belt, this hydraulic tensioner ensures consistent performance and reliability.

Key Features:

• Reduces noise, prevents belt flapping and ensures proper timing effectiveness throughout the entire service life of the belt
• Manufactured to meet the critical OE quality, form, fit and function requirements necessary for superior performance
• Maintains constant tension during crankshaft revolution for optimal timing system operation
• Direct-fit replacement for OEM part number 1145A055
• Also known as a hydraulic tensioner or timing belt tensioner assembly

This precision-engineered component is essential for proper timing belt system operation, helping to extend belt life while ensuring accurate valve timing. The hydraulic design automatically compensates for belt stretch and wear, eliminating the need for manual adjustment.