What is the main function of an auto tensioner?

An auto tensioner's primary job is to keep the accessory drive belt at the correct tension. It automatically adjusts to account for belt stretch, ensuring consistent performance from components like the alternator and power steering pump.

Should I replace the tensioner when I replace the serpentine belt?

It's often recommended to inspect or replace the tensioner when you replace the serpentine belt. A worn tensioner can cause a new belt to slip or wear out prematurely, so replacing them together can save you future work.

Does this tensioner come with any mounting hardware?

This auto tensioner is sold individually and typically does not include mounting hardware. It is designed to use the original bolts from your vehicle's existing tensioner assembly.

Gates DriveAlign Auto Tensioner 39120

Name: Gates 02-12 Dodge Ram Series Pickup / 04-10 Jeep Grand Cherokee DriveAlign Auto Tensioner
Brand: Gates
SKU: gates-gates-02-12-dodge-ram-series-pickup-04-10-jeep-grand-cherokee-drivealign-a-t14-281094
Price: 75.79 USD
Availability: InStock

Gates 02-12 Dodge Ram Series Pickup / 04-10 Jeep Grand Cherokee DriveAlign Auto Tensioner

$75.79

Only 8 left in stock

Gates 02-12 Dodge Ram Series Pickup / 04-10 Jeep Grand Cherokee DriveAlign Auto Tensioner

Key Features

Fits 2002-2013 Dodge Ram 1500, 2004-2010 Jeep Grand Cherokee, and many other Chrysler, Dodge, Jeep, and Mitsubishi vehicles.
Maintains proper accessory drive belt tension for reliable operation of vehicle accessories.
Automatic adjustment feature compensates for belt stretch over time.
Helps prevent belt slippage and premature belt wear.
Direct replacement part for a straightforward installation.

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Will it fit your car?

Product Details

This is the Gates DriveAlign Auto Tensioner, a well-built component designed to keep your accessory drive belt running smoothly. It's built to fit a wide range of trucks and SUVs, including popular models like the Dodge Ram 1500, Jeep Grand Cherokee, and Jeep Liberty. A properly functioning belt tensioner is crucial for ensuring your serpentine belt stays at the correct tension, which is vital for the operation of your alternator, power steering pump, and air conditioning compressor.

Gates has designed this tensioner to maintain consistent belt tension throughout its lifespan. This helps prevent premature belt wear and slippage, which can lead to noise and reduced performance from the accessories it drives. The auto-tensioning mechanism automatically adjusts as the belt stretches over time, so you don't have to worry about manual adjustments. This unit is a direct replacement for the original tensioner, making installation straightforward for mechanics and DIYers alike.

When you're replacing your serpentine belt, it's often a good idea to inspect or replace the tensioner at the same time. A worn tensioner can cause a new belt to fail prematurely. This Gates tensioner is a solid option for ensuring your accessory drive system operates reliably.