Dayco 89110 Accessory Drive Belt Tensioner Pulley

Overview of Dayco Accessory Drive Belt Tensioner Pulley 89110

The Dayco 89110 accessory drive belt tensioner pulley is engineered from durable steel to provide reliable performance in serpentine belt systems. Designed to accommodate belts up to 14 ribs wide, this tensioner pulley supports smooth operation and consistent belt tension for various vehicle applications.

• Constructed from high-strength steel for durability
• Compatible with serpentine belt systems up to 14 rib width
• Dual bearing design with two bearings for enhanced stability
• Bearing inner diameter of 17 mm and bearing width of 28 mm
• Flat pulley design suitable for specific accessory drive configurations

Technical Specifications and Features

The Dayco 89110 tensioner pulley features a flat steel pulley with a maximum belt width capacity of 14 ribs, making it suitable for many modern serpentine belt systems. It incorporates two bearings, each with an inner diameter of 17 mm and a bearing width of 28 mm, ensuring smooth rotation and reduced wear. The pulley’s dimensions, including a 74 mm outer diameter and 57 mm width, are designed to meet precise fitment requirements. This part is engineered to maintain proper belt tension, which is critical for the efficient operation of engine accessories such as the alternator, power steering pump, and air conditioning compressor.

Common Applications and Problem Resolution

This accessory drive belt tensioner pulley is typically used in vehicles equipped with serpentine belt systems requiring a flat pulley design. It is compatible with various makes and models that utilize a 14 rib serpentine belt and matching pulley dimensions. The Dayco 89110 can help address issues such as:

• Excessive belt noise caused by worn or misaligned pulleys
• Premature belt wear due to improper tension
• Vibration or belt slippage in accessory drive systems
• Failure of original equipment tensioner pulley bearings
• Reduced accessory performance linked to belt tension problems

Installation Notes and Tips

When installing the Dayco 89110 tensioner pulley, ensure the serpentine belt is compatible with a maximum width of 14 ribs. Verify the pulley’s flat design matches the vehicle’s accessory drive configuration. Proper alignment and torque specifications should be followed to avoid premature bearing wear or belt misalignment. It is recommended to inspect the entire accessory drive belt system during installation to identify any additional worn components.

Quality Assurance and Warranty Information

Dayco manufactures the 89110 tensioner pulley to meet stringent quality standards, using steel construction and precision bearings for long service life. While specific warranty details are not provided, Dayco products typically undergo rigorous testing to ensure durability and performance in demanding automotive environments.