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Dayco 89170 Accessory Drive Belt Idler Pulley - Grooved PulleyOE Quality 60-Day Returns
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Part #: 89170

Dayco 89170 Accessory Drive Belt Idler Pulley - Grooved Pulley

Grooved Pulley
⚙️ 196 vehicles fit this part
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🚗Fitment: Chevrolet and GMC, Express 2500, Express 3500, Savana 2500, Savana 3500, Silverado 2500 HD, Silverado 3500 HD, Sierra 2500 HD, Sierra 3500 HD, Silverado 2500 HD Classic, Silverado 3500 Classic, Sierra 2500 HD Classic, Sierra 3500 Classic, Silverado 3500, Sierra 3500, C2500, C3500, K2500, K3500, C1500 Suburban, C2500 Suburban, K1500 Suburban, K2500 Suburban, Tahoe, C1500, K1500, Yukon, S10, and S10 Blazer
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Overview of Dayco Accessory Drive Belt Idler Pulley 89170

The Dayco 89170 accessory drive belt idler pulley is engineered for reliable performance in Chevrolet and GMC trucks and SUVs. Designed with durable steel construction and precise specifications, this pulley supports serpentine belt systems on various models including Silverado, Sierra, Tahoe, and Yukon.

  • Constructed from high-strength steel for durability
  • Compatible with serpentine belt systems featuring 6 grooves
  • Bearing inner diameter of 12 mm and bearing width of 12 mm
  • Supports maximum belt width of 6 ribs
  • Single bearing design for smooth operation

Detailed Product Description

The Dayco 89170 idler pulley is a critical component in the accessory drive belt system, designed to maintain proper tension and alignment of the serpentine belt. Its steel material ensures resistance to wear and heat, essential for heavy-duty applications found in Chevrolet C1500, K2500, GMC Sierra 2500 HD, and other compatible models. The pulley features six grooves to accommodate serpentine belts with up to six ribs, ensuring optimal belt tracking and reduced slippage. The bearing specifications, including a 12 mm inner diameter and 12 mm width, provide smooth rotation and long service life under demanding conditions.

Compatible Vehicles and Applications

This idler pulley is compatible with a range of Chevrolet and GMC vehicles, including:

  • Chevrolet Silverado 2500 HD and 3500 Classic
  • GMC Sierra 2500 HD and 3500 HD
  • Chevrolet Tahoe and Suburban models
  • GMC Yukon and Savana 2500/3500 vans
  • Chevrolet Express 2500 and 3500

Common Issues Addressed by Dayco 89170 Idler Pulley

  • Eliminates belt misalignment and slipping in serpentine belt systems
  • Reduces noise caused by worn or damaged pulleys
  • Prevents premature belt wear due to improper tension
  • Supports smooth operation of accessory components like alternators and power steering pumps
  • Helps avoid overheating caused by belt failure

Installation Notes and Tips

  • Ensure the serpentine belt is properly routed before installing the idler pulley
  • Check the bearing for smooth rotation and absence of play before installation
  • Use appropriate torque specifications for mounting bolts to avoid damage
  • Inspect the belt for wear and replace if necessary during installation
  • Consult vehicle-specific service manuals for detailed installation procedures

Quality Assurance and Warranty

Dayco manufactures the 89170 idler pulley to meet or exceed OEM standards for fit, form, and function. The steel construction and precision bearings contribute to reliable performance in demanding automotive environments. While specific warranty details may vary, Dayco typically offers coverage against defects in materials and workmanship, providing confidence in the product's durability and longevity.

BrandDayco
Part Number89170
30
90
Bearing Inner Diameter 112
Bearing Width12
Belt TypeSerpentine
Groove Quantity6
MaterialSteel
Max Belt Width06 Rib
Number of Bearings1

This part fits 196 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2016ChevroletExpress 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2016ChevroletExpress 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2016GMCSavana 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2016GMCSavana 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2015ChevroletExpress 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2015ChevroletExpress 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2015GMCSavana 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2015GMCSavana 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2014ChevroletExpress 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2014ChevroletExpress 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2014GMCSavana 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2014GMCSavana 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2013ChevroletExpress 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2013ChevroletExpress 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2013ChevroletSilverado 2500 HD6.6LV8Grooved PulleyFits vehicles without air conditioning.
2013ChevroletSilverado 3500 HD6.6LV8Grooved PulleyFits vehicles without air conditioning.
2013GMCSavana 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2013GMCSavana 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2013GMCSierra 2500 HD6.6LV8Grooved PulleyFits vehicles without air conditioning.
2013GMCSierra 3500 HD6.6LV8Grooved PulleyFits vehicles without air conditioning.
2012ChevroletExpress 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2012ChevroletExpress 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2012ChevroletSilverado 2500 HD6.6LV8Grooved PulleyFits vehicles without air conditioning.
2012ChevroletSilverado 3500 HD6.6LV8Grooved PulleyFits vehicles without air conditioning.
2012GMCSavana 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2012GMCSavana 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2012GMCSierra 2500 HD6.6LV8Grooved PulleyFits vehicles without air conditioning.
2012GMCSierra 3500 HD6.6LV8Grooved PulleyFits vehicles without air conditioning.
2011ChevroletExpress 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2011ChevroletExpress 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2011ChevroletSilverado 2500 HD6.6LV8Grooved Pulley
2011ChevroletSilverado 3500 HD6.6LV8Grooved Pulley
2011GMCSavana 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2011GMCSavana 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2011GMCSierra 2500 HD6.6LV8Grooved Pulley
2011GMCSierra 3500 HD6.6LV8Grooved Pulley
2010ChevroletExpress 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2010ChevroletExpress 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2010ChevroletSilverado 2500 HD6.6LV8Grooved Pulley
2010ChevroletSilverado 3500 HD6.6LV8Grooved Pulley
2010GMCSavana 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2010GMCSavana 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2010GMCSierra 2500 HD6.6LV8Grooved Pulley
2010GMCSierra 3500 HD6.6LV8Grooved Pulley
2009ChevroletExpress 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2009ChevroletExpress 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2009ChevroletSilverado 2500 HD6.6LV8Grooved Pulley
2009ChevroletSilverado 3500 HD6.6LV8Grooved Pulley
2009GMCSavana 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2009GMCSavana 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2009GMCSierra 2500 HD6.6LV8Grooved Pulley
2009GMCSierra 3500 HD6.6LV8Grooved Pulley
2008ChevroletExpress 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2008ChevroletExpress 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2008ChevroletSilverado 2500 HD6.6LV8Grooved Pulley
2008ChevroletSilverado 3500 HD6.6LV8Grooved Pulley
2008GMCSavana 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2008GMCSavana 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2008GMCSierra 2500 HD6.6LV8Grooved Pulley
2008GMCSierra 3500 HD6.6LV8Grooved Pulley
2007ChevroletExpress 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2007ChevroletExpress 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2007ChevroletSilverado 2500 HD6.6LV8Grooved Pulley
2007ChevroletSilverado 2500 HD Classic6.6LV8Grooved Pulley
2007ChevroletSilverado 3500 Classic6.6LV8Grooved Pulley
2007ChevroletSilverado 3500 HD6.6LV8Grooved Pulley
2007GMCSavana 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2007GMCSavana 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2007GMCSierra 2500 HD6.6LV8Grooved Pulley
2007GMCSierra 2500 HD Classic6.6LV8Grooved Pulley
2007GMCSierra 3500 Classic6.6LV8Grooved Pulley
2007GMCSierra 3500 HD6.6LV8Grooved Pulley
2006ChevroletExpress 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2006ChevroletExpress 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2006ChevroletSilverado 2500 HD6.6LV8Grooved Pulley
2006ChevroletSilverado 35006.6LV8Grooved Pulley
2006GMCSavana 25006.6LV8Grooved PulleyFits vehicles without air conditioning.
2006GMCSavana 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2006GMCSierra 2500 HD6.6LV8Grooved Pulley
2006GMCSierra 35006.6LV8Grooved Pulley
2005ChevroletSilverado 2500 HD6.6LV8Grooved PulleyFits vehicles without air conditioning.
2005ChevroletSilverado 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2005GMCSierra 2500 HD6.6LV8Grooved PulleyFits vehicles without air conditioning.
2005GMCSierra 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2004ChevroletSilverado 2500 HD6.6LV8Grooved PulleyFits vehicles without air conditioning.
2004ChevroletSilverado 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2004GMCSierra 2500 HD6.6LV8Grooved PulleyFits vehicles without air conditioning.
2004GMCSierra 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2003ChevroletSilverado 2500 HD6.6LV8N/AFits vehicles without air conditioning.
2003ChevroletSilverado 35006.6LV8N/AFits vehicles without air conditioning.
2003GMCSierra 2500 HD6.6LV8N/AFits vehicles without air conditioning.
2003GMCSierra 35006.6LV8N/AFits vehicles without air conditioning.
2002ChevroletExpress 25006.5LV8Grooved PulleyFits vehicles without air conditioning.
2002ChevroletExpress 35006.5LV8Grooved PulleyFits vehicles without air conditioning.
2002ChevroletSilverado 2500 HD6.6LV8N/AFits vehicles without air conditioning.
2002ChevroletSilverado 35006.6LV8N/AFits vehicles without air conditioning.
2002GMCSavana 25006.5LV8Grooved PulleyFits vehicles without air conditioning.
2002GMCSavana 35006.5LV8Grooved PulleyFits vehicles without air conditioning.
2002GMCSierra 2500 HD6.6LV8N/AFits vehicles without air conditioning.
2002GMCSierra 35006.6LV8N/AFits vehicles without air conditioning.
2001ChevroletExpress 25006.5LV8Grooved PulleyFits vehicles without air conditioning.
2001ChevroletExpress 35006.5LV8Grooved PulleyFits vehicles without air conditioning.
2001ChevroletSilverado 2500 HD6.6LV8Grooved PulleyFits vehicles without air conditioning.
2001ChevroletSilverado 35006.6LV8Grooved PulleyFits vehicles without air conditioning.
2001GMCSavana 25006.5LV8Grooved PulleyFits vehicles without air conditioning.
2001GMCSavana 35006.5LV8Grooved PulleyFits vehicles without air conditioning.
2001GMCSierra 2500 HD6.6LV8N/AFits vehicles without air conditioning.
2001GMCSierra 35006.6LV8N/AFits vehicles without air conditioning.
2000ChevroletC25006.5LV8N/AFits vehicles without air conditioning.
2000ChevroletC35006.5LV8N/AFits vehicles without air conditioning.
2000ChevroletExpress 25006.5LV8Grooved PulleyFits vehicles without air conditioning.
2000ChevroletExpress 35006.5LV8Grooved PulleyFits vehicles without air conditioning.
2000ChevroletK25006.5LV8N/AFits vehicles without air conditioning.
2000ChevroletK35006.5LV8N/AFits vehicles without air conditioning.
2000GMCC25006.5LV8N/AFits vehicles without air conditioning.
2000GMCC35006.5LV8N/AFits vehicles without air conditioning.
2000GMCK25006.5LV8N/AFits vehicles without air conditioning.
2000GMCK35006.5LV8N/AFits vehicles without air conditioning.
2000GMCSavana 25006.5LV8Grooved PulleyFits vehicles without air conditioning.
2000GMCSavana 35006.5LV8Grooved PulleyFits vehicles without air conditioning.
1999ChevroletC1500 Suburban6.5LV8N/AFits vehicles without air conditioning.
1999ChevroletC25006.5LV8N/AFits vehicles without air conditioning.
1999ChevroletC2500 Suburban6.5LV8N/AFits vehicles without air conditioning.
1999ChevroletC35006.5LV8N/AFits vehicles without air conditioning.
1999ChevroletK1500 Suburban6.5LV8N/AFits vehicles without air conditioning.
1999ChevroletK25006.5LV8N/AFits vehicles without air conditioning.
1999ChevroletK2500 Suburban6.5LV8N/AFits vehicles without air conditioning.
1999ChevroletK35006.5LV8N/AFits vehicles without air conditioning.
1999ChevroletP306.5LV8N/A
1999ChevroletTahoe6.5LV8N/AFits vehicles without air conditioning.
1999GMCC25006.5LV8N/AFits vehicles without air conditioning.
1999GMCC35006.5LV8N/AFits vehicles without air conditioning.
1999GMCK25006.5LV8N/AFits vehicles without air conditioning.
1999GMCK35006.5LV8N/AFits vehicles without air conditioning.
1998ChevroletC15006.5LV8N/AFits vehicles without air conditioning.
1998ChevroletC1500 Suburban6.5LV8N/AFits vehicles without air conditioning.
1998ChevroletC25006.5LV8N/AFits vehicles without air conditioning.
1998ChevroletC2500 Suburban6.5LV8N/AFits vehicles without air conditioning.
1998ChevroletC35006.5LV8N/AFits vehicles without air conditioning.
1998ChevroletK15006.5LV8N/AFits vehicles without air conditioning.
1998ChevroletK1500 Suburban6.5LV8N/AFits vehicles without air conditioning.
1998ChevroletK25006.5LV8N/AFits vehicles without air conditioning.
1998ChevroletK2500 Suburban6.5LV8N/AFits vehicles without air conditioning.
1998ChevroletK35006.5LV8N/AFits vehicles without air conditioning.
1998ChevroletP306.5LV8N/A
1998ChevroletTahoe6.5LV8N/AFits vehicles without air conditioning.
1998GMCC25006.5LV8N/AFits vehicles without air conditioning.
1998GMCC35006.5LV8N/AFits vehicles without air conditioning.
1998GMCK15006.5LV8N/AFits vehicles without air conditioning.
1998GMCK25006.5LV8N/AFits vehicles without air conditioning.
1998GMCK35006.5LV8N/AFits vehicles without air conditioning.
1997ChevroletC15006.5LV8N/AFits vehicles without air conditioning.
1997ChevroletC1500 Suburban6.5LV8N/AFits vehicles without air conditioning.
1997ChevroletC25006.5LV8N/AFits vehicles without air conditioning.
1997ChevroletC2500 Suburban6.5LV8N/AFits vehicles without air conditioning.
1997ChevroletC35006.5LV8N/AFits vehicles without air conditioning.
1997ChevroletK15006.5LV8N/AFits vehicles without air conditioning.
1997ChevroletK1500 Suburban6.5LV8N/AFits vehicles without air conditioning.
1997ChevroletK25006.5LV8N/AFits vehicles without air conditioning.
1997ChevroletK2500 Suburban6.5LV8N/AFits vehicles without air conditioning.
1997ChevroletK35006.5LV8N/AFits vehicles without air conditioning.
1997ChevroletP306.5LV8N/A
1997ChevroletTahoe6.5LV8N/AFits vehicles without air conditioning.
1997GMCC15006.5LV8N/AFits vehicles without air conditioning.
1997GMCC25006.5LV8N/AFits vehicles without air conditioning.
1997GMCC35006.5LV8N/AFits vehicles without air conditioning.
1997GMCK15006.5LV8N/AFits vehicles without air conditioning.
1997GMCK25006.5LV8N/AFits vehicles without air conditioning.
1997GMCK35006.5LV8N/AFits vehicles without air conditioning.
1997GMCYukon6.5LV8N/AFits vehicles without air conditioning.
1996ChevroletC15006.5LV8N/AFits vehicles without air conditioning.
1996ChevroletC1500 Suburban6.5LV8N/AFits vehicles without air conditioning.
1996ChevroletC25006.5LV8N/AFits vehicles without air conditioning.
1996ChevroletC2500 Suburban6.5LV8N/AFits vehicles without air conditioning.
1996ChevroletC35006.5LV8N/AFits vehicles without air conditioning.
1996ChevroletK15006.5LV8N/AFits vehicles without air conditioning.
1996ChevroletK1500 Suburban6.5LV8N/AFits vehicles without air conditioning.
1996ChevroletK25006.5LV8N/AFits vehicles without air conditioning.
1996ChevroletK2500 Suburban6.5LV8N/AFits vehicles without air conditioning.
1996ChevroletK35006.5LV8N/AFits vehicles without air conditioning.
1996ChevroletP306.5LV8N/A
1996ChevroletTahoe6.5LV8N/AFits vehicles without air conditioning.
1996GMCC15006.5LV8N/AFits vehicles without air conditioning.
1996GMCC25006.5LV8N/AFits vehicles without air conditioning.
1996GMCC35006.5LV8N/AFits vehicles without air conditioning.
1996GMCK15006.5LV8N/AFits vehicles without air conditioning.
1996GMCK25006.5LV8N/AFits vehicles without air conditioning.
1996GMCK35006.5LV8N/AFits vehicles without air conditioning.
1996GMCYukon6.5LV8N/AFits vehicles without air conditioning.
1990ChevroletS102.8LV6N/Aw/o A.C.
1989ChevroletS102.8LV6N/Aw/o A.C.
1989ChevroletS10 Blazer2.8LV6N/Aw/o A.C.
1988ChevroletS102.8LV6N/AFits vehicles without air conditioning.
1988ChevroletS10 Blazer2.8LV6N/AFits vehicles without air conditioning.
1987ChevroletS102.8LV6N/AFits vehicles without air conditioning.
1987ChevroletS10 Blazer2.8LV6N/AFits vehicles without air conditioning.

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

This part directly replaces or is cross-referenced with the following part numbers:

36177

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

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