HomeBelts and Cooling > Accessory Drive Belt System ComponentsContinental 50021 Accessory Drive Belt Idler Pulley - Accessory Drive, Accessory Drive (Right) or Lower
Part #: 50021

Continental 50021 Accessory Drive Belt Idler Pulley - Accessory Drive, Accessory Drive (Right) or Lower

Accessory Drive, Accessory Drive (Right), and Lower
⚙️ 55 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Buick, Chevrolet, GMC, and Saab, 9-5, Captiva Sport, Equinox, Express 2500, Express 3500, LaCrosse, Regal, Savana 2500, Savana 3500, Sierra 2500 HD, Sierra 3500 HD, Silverado 2500 HD, Silverado 3500 HD, and Terrain
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Reliable Accessory Drive Belt Idler Pulley for Select GM and Saab Models

The Continental 50021 accessory drive belt idler pulley is engineered to maintain proper belt tension and routing in various Buick, Chevrolet, GMC, and Saab vehicles. Designed with durable steel construction and precise dimensions, this pulley supports smooth operation of the accessory drive system.

  • Pulley outside diameter constructed from steel for durability
  • Non-flanged pulley surface type with a smooth groove
  • Pulley width measures 2.75 inches for optimal belt alignment
  • Mount hole diameter of 1.21 inches ensures secure fitment
  • Includes bolt, dust shield, and washer components for assembly

Detailed Product Description

The Continental 50021 accessory drive belt idler pulley features a non-flanged, smooth pulley surface designed to reduce belt wear and maintain consistent tension. The pulley’s steel outside diameter provides strength and resistance to deformation under load. With a width of 2.75 inches and a mount hole diameter of 1.21 inches, this pulley is engineered for precise fitment and reliable performance. The included bolt, dust shield, and washer components contribute to the overall stability and protection of the pulley assembly.

Compatible Vehicles and Applications

This idler pulley is compatible with a range of vehicles including Buick LaCrosse and Regal, Chevrolet Captiva Sport, Equinox, Silverado 2500 HD and 3500 HD, GMC Sierra 2500 HD and 3500 HD, Terrain, and Express 2500 and 3500 models, as well as the Saab 9-5. It is designed to support the accessory drive belt system by maintaining proper belt tension and alignment.

  • Prevents belt slippage and misalignment
  • Reduces noise caused by worn or damaged pulleys
  • Helps avoid premature belt wear or failure
  • Supports smooth operation of alternator, power steering, and other accessories
  • Addresses issues related to belt tension loss or pulley damage

Installation Notes and Tips

Ensure the pulley mount hole diameter of 1.21 inches matches the vehicle’s mounting point before installation. Verify the pulley width and outside diameter are compatible with the existing belt system. Proper torque specifications should be followed when securing the bolt to avoid over-tightening or loosening during operation. Inspect the dust shield and washer components for correct placement to protect the pulley from debris and ensure longevity.

Quality Assurance and Warranty

Continental manufactures the 50021 accessory drive belt idler pulley to meet OEM standards for fit, form, and function. The steel construction and included components are designed for durability and reliable performance in demanding automotive environments. Warranty information is available through Continental and should be confirmed at the time of purchase.

BrandContinental
Part Number50021
Pulley 1 Flanged0.670
Component TypeBolt
Component TypeDust sheild
Component TypeN
Component TypeWasher
Pulley 1 Outside DiameterSteel
Pulley 1 Width2.75
Pulley 1 Mount Hole Diameter1.21
Pulley 1 Groove QuantitySmooth
Pulley Surface TypeNon-flanged

This part fits 55 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2025GMCSierra 2500 HD6.6LV8FLEXAccessory DriveSmooth Pulley, Includes Hardware
2025GMCSierra 3500 HD6.6LV8FLEXAccessory DriveSmooth Pulley, Includes Hardware
2023ChevroletSilverado 2500 HD6.6LV8FLEXAccessory DriveSmooth Pulley, Includes Hardware
2023ChevroletSilverado 3500 HD6.6LV8FLEXAccessory DriveSmooth Pulley, Includes Hardware
2023GMCSierra 2500 HD6.6LV8FLEXAccessory DriveSmooth Pulley, Includes Hardware
2023GMCSierra 3500 HD6.6LV8FLEXAccessory DriveSmooth Pulley, Includes Hardware
2022ChevroletExpress 25004.3LV6Accessory DriveSmooth Pulley, Includes Hardware
2022ChevroletExpress 35006.6LV8Accessory DriveSmooth Pulley, Includes Hardware
2022ChevroletSilverado 2500 HD6.6LV8FLEXAccessory DriveSmooth Pulley, Includes Hardware
2022ChevroletSilverado 3500 HD6.6LV8FLEXAccessory DriveSmooth Pulley, Includes Hardware
2022GMCSavana 25004.3LV6Accessory DriveSmooth Pulley, Includes Hardware
2022GMCSavana 35004.3LV6Accessory DriveSmooth Pulley, Includes Hardware
2022GMCSierra 2500 HD6.6LV8FLEXAccessory DriveSmooth Pulley, Includes Hardware
2022GMCSierra 3500 HD6.6LV8FLEXAccessory DriveSmooth Pulley, Includes Hardware
2021ChevroletExpress 25004.3LV6Accessory DriveSmooth Pulley, Includes Hardware
2021ChevroletExpress 35004.3LV6Accessory DriveSmooth Pulley, Includes Hardware
2021ChevroletSilverado 2500 HD6.6LV8FLEXAccessory DriveSmooth Pulley, Includes Hardware
2021ChevroletSilverado 3500 HD6.6LV8FLEXAccessory DriveSmooth Pulley, Includes Hardware
2021GMCSavana 25006.6LV8Accessory DriveSmooth Pulley, Includes Hardware
2021GMCSavana 35006.6LV8Accessory DriveSmooth Pulley, Includes Hardware
2021GMCSierra 2500 HD6.6LV8FLEXAccessory DriveSmooth Pulley, Includes Hardware
2021GMCSierra 3500 HD6.6LV8FLEXAccessory DriveSmooth Pulley, Includes Hardware
2020ChevroletExpress 25004.3LV6Accessory DriveSmooth Pulley, Includes Hardware
2020ChevroletExpress 35004.3LV6Accessory DriveSmooth Pulley, Includes Hardware
2020ChevroletSilverado 2500 HD6.6LV8GASAccessory DriveSmooth Pulley, Includes Hardware
2020ChevroletSilverado 3500 HD6.6LV8GASAccessory DriveSmooth Pulley, Includes Hardware
2020GMCSavana 25004.3LV6Accessory DriveSmooth Pulley, Includes Hardware
2020GMCSavana 35004.3LV6Accessory DriveSmooth Pulley, Includes Hardware
2020GMCSierra 2500 HD6.6LV8GASLowerSmooth Pulley, Includes Hardware
2020GMCSierra 3500 HD6.6LV8GASLowerSmooth Pulley, Includes Hardware
2019ChevroletExpress 25004.3LV6Accessory DriveSmooth Pulley, Includes Hardware
2019ChevroletExpress 35004.3LV6Accessory DriveSmooth Pulley, Includes Hardware
2019GMCSavana 25004.3LV6Accessory DriveSmooth Pulley, Includes Hardware
2019GMCSavana 35004.3LV6Accessory DriveSmooth Pulley, Includes Hardware
2018ChevroletExpress 25004.3LV6Accessory DriveSmooth Pulley, Includes Hardware
2018ChevroletExpress 35004.3LV6Accessory DriveSmooth Pulley, Includes Hardware
2018GMCSavana 25004.3LV6Accessory DriveSmooth Pulley, Includes Hardware
2018GMCSavana 35004.3LV6Accessory DriveSmooth Pulley, Includes Hardware
2017GMCTerrain2.4LL4Accessory DriveSmooth Pulley, Includes Hardware
2016GMCTerrain2.4LL4Accessory DriveSmooth Pulley, Includes Hardware
2015ChevroletCaptiva Sport2.4LL4Accessory DriveSmooth Pulley, Includes Hardware
2015ChevroletCaptiva Sport3.0LV6Accessory DriveSmooth Pulley, Includes Hardware
2015ChevroletEquinox2.4LL4Accessory DriveSmooth Pulley, Includes Hardware
2015GMCTerrain2.4LL4Accessory DriveSmooth Pulley, Includes Hardware
2014ChevroletCaptiva Sport2.4LL4Accessory DriveSmooth Pulley, Includes Hardware
2013BuickRegal2.0LL4Accessory DriveSmooth Pulley, Includes Hardware
2013ChevroletCaptiva Sport2.4LL4Accessory DriveSmooth Pulley, Includes Hardware
2012BuickRegal2.0LL4Accessory DriveSmooth Pulley, Includes Hardware
2012ChevroletCaptiva Sport2.4LL4Accessory DriveSmooth Pulley, Includes Hardware
2011BuickLaCrosse2.4LL4Accessory DriveSmooth Pulley, Includes Hardware
2011BuickRegal2.0LL4Accessory DriveSmooth Pulley, Includes Hardware
2011BuickRegal2.4LL4Accessory DriveSmooth Pulley, Includes Hardware
2011ChevroletCaptiva Sport2.4LL4Accessory DriveSmooth Pulley, Includes Hardware
2011Saab9-52.0LL4Accessory DriveSmooth Pulley, Includes Hardware
2010BuickLaCrosse2.4LL4Accessory DriveSmooth Pulley, Includes Hardware

* 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:

1260549236442

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