Dayco 89058 Accessory Drive Belt Tensioner Pulley - Main Drive

Overview of Dayco Accessory Drive Belt Tensioner Pulley 89058

The Dayco 89058 accessory drive belt tensioner pulley is engineered for reliable performance in various vehicle applications. Designed with durable steel construction, this pulley is compatible with select Chevrolet, GMC, Hummer, Isuzu, and Toyota models, including the Canyon, Colorado, H3, H3T, i-280, i-290, i-350, i-370, and MR2 Spyder.

• Constructed from high-strength steel for durability
• Compatible with serpentine belt systems
• Dual bearing design with two 17mm inner diameter bearings
• Bearing width of 24mm for stable operation
• Supports maximum belt width of 6 ribs
• Flat pulley design suitable for specific accessory drive setups

Technical Specifications and Features

The Dayco 89058 tensioner pulley features a steel body that ensures long-lasting resistance to wear and heat. It is designed for serpentine belt systems, which are common in modern accessory drive configurations. The pulley includes two bearings, each with a 17mm inner diameter and a 24mm bearing width, providing smooth rotation and reducing friction. Its flat design accommodates belts up to 6 ribs wide, making it suitable for a range of engine setups found in Chevrolet Canyon, GMC Colorado, Hummer H3 and H3T, Isuzu i-280, i-290, i-350, i-370, and Toyota MR2 Spyder vehicles.

Applications and Problem Solving

• Maintains proper tension on serpentine belts to prevent slippage
• Reduces noise and vibration in accessory drive systems
• Prevents premature belt wear and extends belt life
• Ensures consistent operation of alternator, power steering, and AC compressor
• Replaces worn or damaged tensioner pulleys in specified vehicle models

Installation Notes and Tips

When installing the Dayco 89058 tensioner pulley, ensure the serpentine belt is properly aligned with the flat pulley surface. Verify that the pulley bearings rotate smoothly without resistance or noise. It is recommended to inspect the entire accessory drive belt system, including the belt and other pulleys, for wear or damage during installation. Use appropriate tools to avoid over-tightening and damaging the pulley or belt.

Quality Assurance and Warranty

Dayco manufactures the 89058 tensioner pulley to meet or exceed OEM specifications, ensuring reliable fit and function. The steel construction and precision bearings contribute to the product's durability. While specific warranty details may vary, Dayco typically offers coverage against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.