Dayco Automatic Belt Tensioner 89615

Dayco Automatic Belt Tensioner Fits BMW X5, 5 Series, 6 Series, 7 Series

The Dayco Automatic Belt Tensioner is designed to maintain constant tension on serpentine belt drives, ensuring optimal performance for your vehicle. This automatic, spring-loaded tensioner is integrated into the drive system geometry to maintain the proper tension throughout the drive, making it ideal for DIY enthusiasts and professional mechanics alike. With its unique, patented flat-spring design, this tensioner helps reduce variations in operating tension, increasing bearing longevity and minimising the risk of belt squeal, slippage, and damage.

Suitable for various Australian BMW models, this tensioner features a coated spring with a Teflon strip that resists abrasion and rust. Add your vehicle details to My Garage to ensure it fits your vehicle, activating our 100% Fitment Guaranteed.

Key features

• Maintains consistent tension on serpentine belt drives for reliable performance.
• Automatic, spring-loaded design for easy installation and operation.
• Patented flat-spring design reduces tension variations, enhancing durability.
• Coated spring with Teflon strip resists rust and abrasion for longevity.

Technical details

• Brand: Dayco
• Type: Automatic Belt Tensioner
• Compatibility: Fits various BMW models
• Material: Coated spring with Teflon

Applications / fitment

This tensioner is typically used in various BMW models, providing essential support for the serpentine belt drive system.

• BMW 5 Series 4.0 E60 540 i 2007-2009
• BMW 5 Series 4.4 E60 545 i 2003-2005
• BMW 5 Series 4.8 E60 550 i 2005-2009
• BMW 6 Series 4.4 E63 645 Ci 2003-2005
• BMW 6 Series 4.4 E64 645 Ci 2004-2009
• BMW 6 Series 4.8 E63 650 i 2005-2009
• BMW 6 Series 4.8 E64 650 i 2005-2009
• BMW 7 Series 3.6 E65,E66,E67 735 i, Li 2002-2005
• BMW X5 4.4 E53 SAV i 2003-2006
• BMW X5 4.8 E53 SAV i 2004-2006
• BMW X5 4.8 E70 SAV i xDrive 2006-2008

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Frequently asked questions

How do I install the Dayco Automatic Belt Tensioner?

Installation typically involves removing the old tensioner and replacing it with the new unit, ensuring all connections are secure.

Is this tensioner compatible with my BMW model?

This tensioner is compatible with various BMW models. Please refer to the fitment list or add your vehicle details to My Garage for guaranteed fitment.

What materials is the tensioner made from?

The Dayco Automatic Belt Tensioner features a coated spring with a Teflon strip for enhanced durability and resistance to rust and abrasion.

How can I ensure the longevity of the belt tensioner?

Regular maintenance and inspections of the serpentine belt system can help ensure the longevity of the tensioner and prevent premature wear.

What should I do if I hear squeaking or slippage from the belt?

If you hear squeaking or experience slippage, it may indicate that the tensioner is not functioning properly. Inspect the tensioner and belt for wear or damage.