Gates 38146 Accessory Drive Belt Tensioner Assembly - Alternator and Air Conditioning

Overview of Gates DriveAlign Premium OE Automatic Belt Tensioner

The Gates DriveAlign Premium OE Automatic Belt Tensioner 38146 is engineered to maintain optimal tension on the accessory drive belt system. Designed for select Buick, Chevrolet, Oldsmobile, and Pontiac models, this tensioner assembly ensures consistent belt performance and longevity.

• Constructed from durable steel for strength and reliability
• Compatible with V-ribbed belt types
• Single pulley design without flange
• Precision bearing bore inside diameter of 17 mm (.67 in)
• Pulley outside diameter measures 82 mm (3.23 in)
• Pulley width of 27 mm (1.06 in)
• Smooth backside contact surface for efficient belt engagement

Detailed Product Description

This accessory drive belt tensioner assembly from Gates is built with a steel construction to withstand the demands of the engine environment. The single pulley, which is not flanged, features a smooth backside contact surface that is compatible with V-ribbed belts commonly used in the accessory drive systems of Buick Achieva, Chevrolet Cavalier, and Pontiac Grand Prix vehicles. The bearing bore inside diameter is precisely 17 mm (.67 inches), ensuring proper fit and rotation. The pulley’s outside diameter of 82 mm (3.23 inches) and width of 27 mm (1.06 inches) are designed to match original equipment specifications, providing OE performance and reliability.

About the DriveAlign Premium OE Automatic Belt Tensioner Line

The DriveAlign Premium OE Automatic Belt Tensioner product line by Gates focuses on delivering tensioners that meet or exceed original equipment standards. This line emphasizes precise fitment and durable materials to maintain proper belt tension automatically, reducing maintenance needs and improving accessory drive system efficiency. Part number 38146 is part of this line, ensuring compatibility and performance for specific GM vehicles.

Compatible Vehicles and Common Applications

• Buick Achieva and Skylark
• Chevrolet Alero, Cavalier, Malibu, and Sunfire
• Oldsmobile Cutlass Calais and Cutlass Supreme
• Pontiac Grand Am and Grand Prix

Common Issues Addressed by This Belt Tensioner

• Excessive belt slack causing slipping or noise
• Uneven belt wear due to improper tension
• Premature bearing failure in the tensioner pulley
• Loss of accessory drive system efficiency
• Vibration or misalignment in the belt path

Installation Notes and Tips

When installing the Gates DriveAlign Premium OE Automatic Belt Tensioner 38146, ensure the correct belt type (V-ribbed) is used for compatibility. Verify the pulley dimensions and bearing bore match the vehicle’s specifications. No mounting holes are present on this tensioner, so installation will rely on the vehicle’s original mounting points. Proper alignment during installation is critical to prevent premature belt or pulley wear.

Quality Assurance and Warranty

This tensioner assembly is manufactured to meet original equipment performance standards, providing reliable operation for the accessory drive belt system. Gates backs the DriveAlign Premium OE Automatic Belt Tensioner line with quality controls to ensure durability and fitment. Please refer to Gates’ official warranty policy for specific coverage details.