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Accessory Belt Tension Pulley

We have 106 Items for Accessory Belt Tension Pulley In-stock.
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Did you know that it takes 43 facial muscles to frown and just 17 to smile? Now, that's a lot of muscles needed to wear a frown on your face, like when you feel tension. But speaking of your car's accessory belt, you won't need any facial muscle to create proper tension, just a premium-quality Accessory Belt Tension Pulley. It provides the right amount of tension to your accessory belt for it to function effectively. An Accessory Belt Tension Pulley has a limited life expectancy and eventually wears out, causing the accessory belt to lose its ideal tension. If your pulley has already seen better days, you should immediately replace it with a good quality one. But how would you know? First, it should be made from a specially formulated glass-filled polymers for high-strength, cooler running, and maximum wear resistance. Second, its design should be state-of-the-art for maximum structural integrity to help your pulley withstand extreme operating conditions. Third, it should be engineered with smoother surfaces and tighter dimensional tolerances for lesser vibration and longer belt life. And last, its ball bearings should be well-lubricated and should have double high temperature seals for excellent bearing performance. Find the best Accessory Belt Tension Pulley here at Auto Parts Warehouse. We offer discounted parts for your working budget, secured shopping for your peace of mind, 24/7 customer support for your urgent concerns, and fast parts shipping for your utmost convenience. So what are you waiting for? Buy now!

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Dos and Don'ts in Choosing an Accessory Belt Tension Pulley

Your car's accessory belt needs the proper amount of tension in order to function effectively. The tension applied on the belt comes from the accessory belt tension pulley. When looking for a high-quality belt tensioner pulley, you need to look into the do's and don'ts to avoid getting the wrong one.

Do's

  • Refer to your vehicle's manual for your car's belt tensioner pulley specifications. If you don't have the manual with you anymore, there's always the internet to search on. Just make sure that you get the data from a trusted online source, such as your car manufacturer's website.
  • Check which flange is suitable for your vehicle. Getting the right match ensures compatibility. To identify the flange suited to your pulley, you need to know your pulley's width, and its inner and outer diameters. Two types of flanges for the belt tensioner pulley are steel and polymer.
  • Look for a belt tensioner pulley with lubricated ball bearings and double high temperature. These features offer peak bearing performance.
  • Go for a belt tensioner pulley that's covered with a long-term warranty. The usual warranty period is 1-year with unlimited-mileage.

Don'ts

  • Don't buy a driver's side belt tensioner pulley if you're looking for a passenger's side tensioner pulley replacement. This can lead to accessory belt malfunction, which in turn, can cause engine damage.
  • Don't purchase a used belt tensioner pulley unless you've assessed its remanufacturing origins. Be suspicious of overly cheap used tensioner pulleys as these are most likely damaged. Check your supplier and the actual belt tensioner pulley before buying it.
  • Avoid getting low-quality belt tensioner pulleys in exchange for a cheaper price. When you examine the situation carefully, these low-quality pulleys break faster and require replacement more often than standard ones. Therefore, the sum of adding up the costs of numerous low-quality pulleys is equal or even greater than the price of one high-quality pulley.
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How to Change Your Vehicle's Accessory Belt Tension Pulley

The accessory belt tension pulley enables the belt tensioner to move up and down. It applies the proper amount of tension to the belt during engine operations. Over time, the tensioner pulley may get worn and eventually freeze up. This can lead to belt damage due to the friction caused by the belt sliding across the stuck pulley. In order to prevent this, replacing your broken tensioner pulley immediately is recommended.

Difficulty level: Moderate

Tools to be used:

  • Flathead screwdriver
  • 3/8-inch drive breaker bar
  • Bungee cord
  • 8 mm hex-head socket
  • Socket set
  • Ratchet
  • Torque wrench

Step 1: Shut down the engine and engage the parking brake. Open the hood and let the engine cool down for a while before starting the repair.

Step 2: Observe the top of the fan shroud and look for the accessory belt routing diagram. It's usually stamped to the fan shroud. Otherwise, you may find it stamped to the underside of the hood.

Step 3: While standing in front of your engine, find the accessory belt tensioner and pulley located on the engine's front-center. You'll notice a black plastic cover at the center of the pulley. Pry this plastic cover off the tensioner pulley's center using a flat-head screwdriver. Keep the cover in a safe place. Once the plastic cover is removed, you'll gain access to the hex-head hole inside the tensioner pulley.

Step 4: Get the 8mm hex head socket and slide it onto the end of a 3/8-inch drive breaker. Insert the hex-head socket into the hex-head hole inside the tensioner pulley. Use one hand to turn the breaker bar clockwise in order to release the tension from the belt.

Step 5: Using your other hand, slide off the tensioner pulley. With utmost caution, release the tensioner and remove the breaker bar. Get a bungee cord and hang the belt from one of the top engine accessories, keeping the belt in place while the pulley gets replaced.

Step 6: Locate the bolts mounting the tensioner to the engine's front. Use a ratchet and socket to unbolt the tensioner. Put the bolts in a safe place.

Step 7: Pull the tensioner off the engine's front. Then, get the new tensioner pulley and pry its plastic cap off. Install the new pulley on the exact area where the old one used to be. Secure the tensioner in place by screwing the mounting bolts and making sure that they are tight enough. Use a ratchet and socket to complete tightening the bolts.

Step 8: With a torque wrench and a socket, torque the tensioner mounting bolts between 25 and 30-foot pounds. Position the hex-head socket and the breaker bar onto the new pulley. Reinstall the belt by turning the breaker bar clockwise with one hand, and removing the bungee cord with the other hand. Release the tensioner cautiously and remove the breaker bar.

Step 9: After the new tensioner has retracted, bringing the belt to proper tension, snap the plastic cover back into the pulley. Refer to the belt routing diagram to re-route the belt around the pulleys.