Basically, this little guy keeps your belts tight. Think of it as a spring – loaded arm that constantly presses against the belt, making sure it doesn’t flap around or get loose. It’s got a pulley itself, which the belt runs around, and an internal mechanism – often a hydraulic one, or sometimes spring – loaded – that maintains consistent tension. Some have a little bit of “give” built in, so they can absorb vibrations and prevent the belt from getting stressed too much. You’ll find these on most engines that use belts to drive things like the alternator, power steering pump, air conditioning compressor, and sometimes even the water pump. It’s part of the accessory drive system. The engine spins a crankshaft, and that power gets transferred to those accessories through a series of pulleys and belts. The tensioner pulley acts like a shield, protecting the belt and other components from wear and tear. It ensures the belt stays properly aligned and doesn’t slip, which is critical for those accessories to work correctly. A failing tensioner pulley can cause all sorts of problems. If the tension isn't right, the belt can slip, which means those accessories aren't getting the power they need. You’ll notice if your battery light comes on – that’s often the alternator being affected. Or your power steering might feel heavy. Worse, a really bad tensioner can cause the belt to break completely, leaving you stranded. It’s a relatively inexpensive part to replace compared to the damage a broken belt can cause. You can find a good selection of them over at Fixparts Online, and it’s usually a straightforward repair for a mechanic. It’s one of those things that’s best to address before it becomes a big issue. Guaranteed satisfaction: Tensioner Pulley (MPN 83030001) includes a 12-month warranty!

About SWAG

SWAG specializes in precision-engineered replacement parts for steering, suspension, and engine components, ensuring reliability and long service life.

Why Choose SWAG?

• SWAG parts are made to the same high standards as original equipment, so you get reliable performance. • We offer a wide range of parts for many different car makes and models – we likely have what you need. • SWAG parts are a smart value – quality you can trust without breaking the bank. • Our parts are thoroughly tested to make sure they’ll last, giving you peace of mind on the road. Drive with confidence – choose SWAG parts at FixParts Online.