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Gates 36776 Accessory Drive Belt Idler Pulley - Center, Left, Smooth Pulley or Upper
Overview of Gates DriveAlign Premium OE Pulley 36776
The Gates DriveAlign Premium OE Pulley 36776 is engineered for reliable performance in Chevrolet and GMC trucks. Designed as an accessory drive belt idler pulley, it ensures smooth belt operation and proper tension in your vehicle's accessory drive system.
- Constructed from durable steel for long-lasting strength
- Outside diameter of 90 mm and width of 32 mm for precise fitment
- Features a smooth backside contact surface with no grooves
- Includes pulley, bolt, dust shield, sleeve, and spacer for complete installation
- OE exact comparison rating for direct replacement
Detailed Product Features and Specifications
This accessory drive belt idler pulley is made from steel, providing the necessary durability to withstand the demands of accessory drive systems in heavy-duty trucks. The pulley has an outside diameter of 90 mm and a width of 32 mm, with a bearing bore inside diameter of 17 mm, ensuring compatibility with the specified Chevrolet and GMC models. The smooth backside contact surface and absence of grooves indicate it is designed to guide or tension the belt without engaging with ribbed or multi-groove belts. The package includes all necessary components such as the pulley itself, bolt, dust shield, sleeve, and spacer, facilitating a straightforward installation process.
About the DriveAlign Premium OE Pulley Product Line
The DriveAlign Premium OE Pulley line by Gates focuses on delivering pulleys that meet original equipment specifications. This ensures that the pulley 36776 matches the exact dimensions and performance characteristics required by Chevrolet and GMC trucks, maintaining the integrity of the accessory drive belt system. The OE exact rating confirms that this pulley is designed to replace the factory-installed part without modification.
Compatible Vehicles and Common Applications
- Chevrolet Sierra 1500, 2500 HD, and 3500 HD
- GMC Sierra 1500, 2500 HD, and 3500 HD
- Chevrolet Silverado 1500, 2500, 2500 HD, and 3500 HD
This pulley is used in the accessory drive belt system to maintain proper belt tension and alignment, which is critical for the operation of components such as the alternator, power steering pump, and air conditioning compressor.
Issues Addressed by the Gates DriveAlign Premium OE Pulley 36776
- Eliminates belt slippage caused by worn or damaged idler pulleys
- Prevents abnormal belt noise due to misalignment or pulley wear
- Reduces premature belt wear by maintaining proper tension
- Helps avoid accessory component failure linked to belt system issues
- Restores factory-level performance in accessory drive systems
Installation Notes and Tips
Installation of the Gates DriveAlign Premium OE Pulley 36776 should be performed with the engine off and cooled down. Use the included bolt, dust shield, sleeve, and spacer to ensure proper assembly. Verify the bearing bore inside diameter of 17 mm matches the mounting shaft. Inspect the accessory drive belt for wear and replace if necessary during installation. Proper torque specifications should be followed to avoid damage or loosening during operation.
Quality Assurance and Warranty
Gates manufactures the DriveAlign Premium OE Pulley 36776 to meet stringent quality standards, ensuring durability and reliable performance. The OE exact rating confirms compatibility with original equipment specifications. Warranty details are provided by Gates and typically cover defects in materials and workmanship under normal use conditions.
| Brand | Gates |
| Part Number | 36776 |
| Position | DriveAlign Premium OE Pulley, Left |
| Bearing Bore Inside Diameter | 17 |
| Bearing Bore Inside Diameter 1 (mm) | 17 |
| Contact Surface | Smooth/Backside |
| Contents | Pulley, Bolt, Dust Shield, Sleeve, Spacer |
| Groove Quantity | 0 |
| Material | Steel |
| Number of Grooves | 0 |
| Number of Pulleys | 1 |
| OE Comparison Rating | OE Exact |
| Outside Diameter | 90 |
| Outside Diameter (mm) | 90 |
| Pulley 1 Flanged | No |
| Pulley 1 Flanged | No |
| Pulley Quantity | 1 |
| Width | 32 |
This part fits 52 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2025 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | DIESEL | Left | DriveAlign Premium OE Pulley |
| 2025 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | DIESEL | Left | DriveAlign Premium OE Pulley |
| 2025 | GMC | Sierra 2500 HD | 6.6L | V8 | DIESEL | Left | DriveAlign Premium OE Pulley |
| 2025 | GMC | Sierra 3500 HD | 6.6L | V8 | DIESEL | Left | DriveAlign Premium OE Pulley |
| 2024 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | DIESEL | Left | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2024 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | DIESEL | Left | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2024 | GMC | Sierra 2500 HD | 6.6L | V8 | DIESEL | Left | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2024 | GMC | Sierra 3500 HD | 6.6L | V8 | DIESEL | Left | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2023 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | DIESEL | Left | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2023 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | DIESEL | Left | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2023 | GMC | Sierra 2500 HD | 6.6L | V8 | DIESEL | Left | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2023 | GMC | Sierra 3500 HD | 6.6L | V8 | DIESEL | Left | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2022 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | DIESEL | Left | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2022 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | DIESEL | Left | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2022 | GMC | Sierra 2500 HD | 6.6L | V8 | DIESEL | Left | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2022 | GMC | Sierra 3500 HD | 6.6L | V8 | DIESEL | Left | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2021 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | DIESEL | Left | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2021 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | DIESEL | Left | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2021 | GMC | Sierra 2500 HD | 6.6L | V8 | DIESEL | Left | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2021 | GMC | Sierra 3500 HD | 6.6L | V8 | DIESEL | Left | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2020 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | DIESEL | Left | Driver Side; W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2020 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | DIESEL | Left | Driver Side; W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2020 | GMC | Sierra 2500 HD | 6.6L | V8 | DIESEL | Upper | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2020 | GMC | Sierra 3500 HD | 6.6L | V8 | DIESEL | Upper | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2019 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | DIESEL | Upper | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2019 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | DIESEL | Upper | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2019 | GMC | Sierra 2500 HD | 6.6L | V8 | DIESEL | Upper | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2019 | GMC | Sierra 3500 HD | 6.6L | V8 | DIESEL | Upper | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2018 | Chevrolet | Silverado 1500 | 4.3L | V6 | FLEX | Smooth Pulley | DriveAlign Premium OE Pulley |
| 2018 | Chevrolet | Silverado 1500 | 4.3L | V6 | GAS | Smooth Pulley | DriveAlign Premium OE Pulley |
| 2018 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | DIESEL | Upper | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2018 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | DIESEL | Upper | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2018 | GMC | Sierra 1500 | 4.3L | V6 | FLEX | Smooth Pulley | DriveAlign Premium OE Pulley |
| 2018 | GMC | Sierra 2500 HD | 6.6L | V8 | DIESEL | Upper | DriveAlign Premium OE Pulley |
| 2018 | GMC | Sierra 3500 HD | 6.6L | V8 | DIESEL | Upper | DriveAlign Premium OE Pulley |
| 2017 | Chevrolet | Silverado 1500 | 4.3L | V6 | FLEX | Smooth Pulley | DriveAlign Premium OE Pulley |
| 2017 | Chevrolet | Silverado 1500 | 4.3L | V6 | GAS | Smooth Pulley | DriveAlign Premium OE Pulley |
| 2017 | Chevrolet | Silverado 2500 | 4.3L | V6 | GAS | Smooth Pulley | DriveAlign Premium OE Pulley |
| 2017 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | DIESEL | Upper | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2017 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | DIESEL | Upper | W/Dual Alts.; DriveAlign Premium OE Pulley |
| 2017 | GMC | Sierra 1500 | 4.3L | V6 | FLEX | Smooth Pulley | DriveAlign Premium OE Pulley |
| 2017 | GMC | Sierra 2500 HD | 6.6L | V8 | DIESEL | Upper | DriveAlign Premium OE Pulley |
| 2017 | GMC | Sierra 3500 HD | 6.6L | V8 | DIESEL | Upper | DriveAlign Premium OE Pulley |
| 2016 | Chevrolet | Silverado 1500 | 4.3L | V6 | GAS | Smooth Pulley | DriveAlign Premium OE Pulley |
| 2016 | Chevrolet | Silverado 1500 | 4.3L | V6 | FLEX | Smooth Pulley | DriveAlign Premium OE Pulley |
| 2016 | GMC | Sierra 1500 | 4.3L | V6 | FLEX | Smooth Pulley | DriveAlign Premium OE Pulley |
| 2015 | Chevrolet | Silverado 1500 | 4.3L | V6 | FLEX | Smooth Pulley | DriveAlign Premium OE Pulley |
| 2015 | Chevrolet | Silverado 1500 | 4.3L | V6 | GAS | Smooth Pulley | DriveAlign Premium OE Pulley |
| 2015 | GMC | Sierra 1500 | 4.3L | V6 | FLEX | Smooth Pulley | DriveAlign Premium OE Pulley |
| 2014 | Chevrolet | Silverado 1500 | 4.3L | V6 | FLEX | Smooth Pulley | DriveAlign Premium OE Pulley |
| 2014 | Chevrolet | Silverado 1500 | 4.3L | V6 | GAS | Smooth Pulley | DriveAlign Premium OE Pulley |
| 2014 | GMC | Sierra 1500 | 4.3L | V6 | FLEX | Smooth Pulley | DriveAlign Premium OE Pulley |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.