This part basically keeps the belt – usually your serpentine belt or timing belt – at the right tightness. It's got a spring – loaded arm that pushes against the belt, taking up any slack. It also has a pulley itself that the belt rides on, so it’s an integral part of the belt’s path. Some tensioners also dampen vibrations, helping to keep things running smoothly. It's part of your engine’s front – end accessory drive system. That system powers things like your alternator, power steering pump, and air conditioning compressor. For timing belts, it's absolutely critical to keeping the engine in sync, making sure the valves open and close at the right time. Think of it as a little helper that ensures everything stays properly aligned and powered. A failing tensioner can cause a whole bunch of issues. If it doesn’t maintain proper belt tension, your belt can slip, causing a squealing noise, or even snap. That can leave you stranded, and if it's a timing belt tensioner, a broken belt can cause serious engine damage. You’ll notice if it’s going bad – usually by a whining or chirping sound, especially when you first start the car or when you put a load on the accessories like turning the steering wheel. Sometimes you’ll see the belt visibly vibrating. It's a relatively inexpensive part to replace considering the potential cost of fixing a bigger problem down the road. You can find a good selection of tensioner assemblies, including this one, over at Fixparts Online, just so you know. It’s a part that acts like a shield, protecting the more expensive components from damage. Buy risk-free: Tensioner Assembly (MPN 175858) is covered by a 3 year manufacturer guarantee!

About Febi

Ferdinand Bilstein is a leading global supplier of aftermarket spare parts, offering an extensive range of high-quality components for passenger and commercial vehicles.

Why Choose Febi?

• Febi parts are made to the same standards as original equipment, so you get reliable quality without the high price. • We offer a huge range of parts – everything from engine components to brake parts and even small wear items – all in one place. • Febi has been around for over 75 years, so we know what mechanics and drivers need to keep vehicles on the road. • You’ll find parts for many different makes and models, including popular European cars, making it easy to find what you need. Drive with confidence – choose Febi parts at FixParts Online.