HomeBelts and Cooling > Accessory Drive Belt System ComponentsDayco 89580 Accessory Drive Belt Idler Pulley - Smooth Pulley
Part #: 89580

Dayco 89580 Accessory Drive Belt Idler Pulley - Smooth Pulley

Smooth Pulley
15 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Lexus, GS460 and LS460
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Overview of Dayco Accessory Drive Belt Idler Pulley 89580

The Dayco 89580 accessory drive belt idler pulley is engineered for reliable performance in Lexus GS460 and LS460 models. Constructed from durable steel, this serpentine belt pulley supports proper belt tension and alignment, ensuring smooth operation of your vehicle's accessory drive system.

  • Made from high-strength steel for durability
  • Designed for serpentine belt systems with up to 7 ribs
  • Single bearing design with precise dimensions for optimal fit
  • Flat pulley surface compatible with specific belt types
  • Compatible with Lexus GS460 and LS460 accessory drive systems

Detailed Product Description and Specifications

The Dayco 89580 idler pulley features a steel construction that provides resistance to wear and heat, essential for maintaining belt tension in demanding engine environments. It is designed specifically for serpentine belts with a maximum width of 7 ribs, making it suitable for the accessory drive belt systems found in Lexus GS460 and LS460 vehicles. The pulley includes one bearing with an inner diameter of 10.2 mm and an outer diameter of 27.6 mm, and a bearing width of 32.5 mm, ensuring smooth rotation and reduced friction. The flat pulley surface supports proper belt tracking and reduces the risk of belt slippage or misalignment.

Compatible Vehicles and Applications

  • Compatible with Lexus GS460 accessory drive belt systems
  • Compatible with Lexus LS460 accessory drive belt systems
  • Designed for serpentine belt tensioning and routing
  • Supports accessory components such as alternator, power steering pump, and air conditioning compressor

Installation Notes and Tips

  • Verify belt type and rib count before installation to ensure compatibility
  • Inspect the serpentine belt for wear or damage during replacement
  • Ensure proper alignment of the pulley to prevent premature belt wear
  • Use appropriate tools to avoid damage to the bearing during installation

Quality Assurance and Warranty Information

Dayco manufactures the 89580 idler pulley to meet OEM specifications for fit and function. The steel construction and precision bearing design contribute to long service life under normal operating conditions. While specific warranty details are not provided, Dayco products typically adhere to industry standards for quality and reliability.

BrandDayco
Part Number89580
MaterialSteel
1068118
25632.6
Belt TypeSerpentine
Bearing Inner Diameter 110.2
Bearing Inner Diameter 227.6
Bearing Width32.5
FlatY
Max Belt Width07 rib
Number of Bearings1

This part fits 15 vehicles. Search below:

YearMakeModelPositionNotes
2017LexusLS460Smooth Pulley
2016LexusLS460Smooth Pulley
2015LexusLS460Smooth Pulley
2014LexusLS460Smooth Pulley
2013LexusLS460Smooth Pulley
2012LexusLS460Smooth Pulley
2011LexusGS460Smooth Pulley
2011LexusLS460Smooth Pulley
2010LexusGS460Smooth Pulley
2010LexusLS460Smooth Pulley
2009LexusGS460Smooth Pulley
2009LexusLS460Smooth Pulley
2008LexusGS460Smooth Pulley
2008LexusLS460Smooth Pulley
2007LexusLS460Smooth Pulley

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.