Dayco 85015 Hydraulic Timing Belt Tensioner Actuator

The Dayco 85015 Hydraulic Timing Belt Actuator is a precision-engineered component designed to maintain constant tension on your engine's timing belt throughout its service life. Also known as a hydraulic timing belt tensioner, this component plays a critical role in preventing timing belt failure and ensuring optimal engine performance.

Key Features:

• Hydraulic design absorbs changes in timing belt tension caused by variations in engine temperature, speed, and belt aging
• Maintains constant belt tension during crankshaft revolution to prevent timing belt failure
• Reduces noise and prevents belt flapping for quieter engine operation
• Ensures proper transmission efficiency throughout the entire service life of the timing belt
• Manufactured to meet critical OE quality, form, fit, and function requirements
• Direct-fit replacement for easy installation

This hydraulic actuator is especially important for interference engines where timing belt failure can result in catastrophic engine damage. The hydraulic design automatically compensates for belt stretch and wear, maintaining optimal tension without manual adjustment. Cross-references to Toyota OEM part number 13540-46030, Gates T43100, and NAPA T43100.