Goodyear Belts & Hoses 21021 Hydraulic Timing Belt Tensioner Actuator

The Goodyear Belts & Hoses 21021 timing belt tensioner is a hydraulic engine timing tensioner (tensioner actuator) that keeps the timing belt under correct tension. The timing belt links the crankshaft and camshaft, so proper tension keeps valve timing accurate. It also helps stop the belt from slipping or skipping teeth.

Key Features:

• Hydraulic design adjusts tension automatically, so no manual adjustment is needed
• Helps extend timing belt life and reduce belt wear
• Built for OE-quality fit and function and straightforward installation
• Made from durable materials for demanding engine conditions
• Supplied as an engine timing belt tensioner hydraulic assembly

Specifications:

• Manufacturer part number: 21021
• Approximate dimensions: 3.74 x 3.74 x 2.55 inches
• Approximate weight: 13.3 ounces

A worn tensioner can lead to belt failure and serious engine damage. Replacing it along with the timing belt is a common part of preventive maintenance.