What does a belt tensioner assembly do?

A belt tensioner assembly keeps the correct amount of pressure on your serpentine belt. This prevents the belt from slipping on the pulleys, which ensures that all the accessories driven by the belt, like the alternator and power steering pump, operate correctly.

When should I replace my belt tensioner assembly?

You should consider replacing the tensioner assembly if you hear noises like chirping or rattling from the front of the engine, or if the belt appears to be loose or is showing signs of excessive wear. It's often replaced when installing a new serpentine belt.

Does this assembly come with a new serpentine belt?

No, this part is the tensioner assembly only. You will need to purchase the serpentine belt separately if you are replacing it at the same time.

Gates Serpentine Belt Tensioner Assembly 38137

Name: Gates 00-10 Ford Explorer V-6 4.0L Tensioner Assy. Belt Drive Tensioner
Brand: Gates
Price: 51.80 USD
Availability: InStock

Gates 00-10 Ford Explorer V-6 4.0L Tensioner Assy. Belt Drive Tensioner

$51.80

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Gates belt tensioner assembly for 2000-2010 Ford Explorer V-6 4.0L. Ensures proper belt tension for accessory drive.

Key Features

Fits 2000-2010 Ford Explorer, 2001-2011 Ford Ranger, 2001-2009 Mazda B4000, and 2006-2007 Land Rover LR3.
Maintains proper tension on the serpentine belt for accessory drive components.
Helps prevent belt slippage and premature wear.
Includes the tensioner arm and pulley for a complete assembly.
Well-built for reliable operation.

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Product Details

When you're replacing the serpentine belt on your 2000-2010 Ford Explorer with the 4.0L V-6, or similar vehicles like the Ford Ranger, Mazda B4000, or Land Rover LR3, making sure the new belt is properly tensioned is key. This belt drive tensioner assembly from Gates is designed to do just that, keeping the right amount of pressure on your accessory belt so everything from your alternator to your power steering pump runs smoothly.

This assembly is a well-built replacement part that helps maintain the correct belt tension. Over time, tensioner springs can weaken or the pulley bearing can start to fail, leading to noise or improper belt function. Replacing the entire assembly ensures you're getting a fresh spring and a smooth-running pulley, which is important for the longevity of your belt and the performance of your accessories.

It's a straightforward replacement for most applications, often requiring just a few basic tools to get the old one off and the new one on. Keeping your accessory drive system in good shape means your engine's essential components get the power they need.