Gates 36301 Accessory Drive Belt Idler Pulley

Gates DriveAlign OE Idler Pulley 36301

The Gates DriveAlign Premium OE Pulley 36301 is an accessory drive belt idler pulley built for OE-style fit and smooth belt routing in passenger cars and light trucks. It serves as a locked center tensioning pulley, automatic belt tensioner pulley, or idler pulley depending on the application.

Compatible With Chevrolet Colorado, GMC Canyon, Hummer H3, Hummer H3T, Isuzu i-290, Isuzu i-370, and select HVAC heater hose with A/C serpentine belt applications. The Gates 36301 is a direct-fit replacement for common accessory drive belt service needs on these platforms.

Key Features

• Steel pulley construction for durable belt support
• Smooth/backside contact surface for serpentine belt routing
• 70 mm outside diameter for OE-style fitment
• 17 mm bearing bore inside diameter
• No grooves and no flange design
• Single pulley configuration for accessory drive service

Product Details

Gates DriveAlign Premium OE Pulley components are engineered to match original equipment fit and function in accessory drive belt systems. Part number 36301 uses a smooth steel pulley profile with a 70 mm outside diameter and 33.5 mm width, making it suitable for applications that rely on backside belt contact rather than a grooved pulley surface. This part cross-references Continental 49180 for the same application.

Use Gates 36301 when servicing a worn idler pulley on a Chevrolet Colorado, GMC Canyon, or related GM and Isuzu platforms. It also appears in select 2004-2006 Chevrolet Colorado and GMC Canyon HVAC heater hose with A/C serpentine belt applications, as well as 2006 Isuzu i-280 and i-350 configurations.

What It Helps Address

• Belt noise caused by a worn idler pulley bearing
• Uneven serpentine belt tracking across the accessory drive system
• Visible pulley wear on smooth-backside belt routing systems
• Accessory drive vibration related to pulley surface damage
• Service replacement for OE-style belt routing components

Installation Notes

Verify pulley diameter, bearing bore, and belt routing before installation. Confirm the application against the vehicle’s accessory drive layout, since this part is used in multiple GM, Hummer, and Isuzu fitments across 2004-2012 model years. Inspect the serpentine belt, tensioner, and adjacent pulleys during service to avoid repeat noise or alignment issues.

Quality Assurance

DriveAlign Premium OE Pulley parts are built to OE-quality fit standards for passenger cars and light trucks. Gates 36301 is specified with steel construction and application-matched dimensions for consistent accessory drive service.