Gates 38177 Accessory Drive Belt Tensioner Assembly - Alternator and Air Conditioning

Reliable Automatic Belt Tensioner for Select GM and Saab Models

The Gates DriveAlign Premium OE Automatic Belt Tensioner (Part Number 38177) is engineered to maintain optimal tension on V-ribbed accessory drive belts. Designed for compatibility with various Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Saab, and Saturn vehicles, this tensioner assembly ensures consistent belt performance and longevity.

• Constructed from durable steel for strength and longevity
• Single pulley design with a smooth backside contact surface
• Compatible with V-ribbed belt systems
• Outside diameter of 3.23 inches (82 mm) and width of 1.06 inches (27 mm)
• One mounting hole for secure installation
• Bearing bore inside diameter of 0.67 inches (17 mm)
• OE exact fit and performance rating

About the DriveAlign Premium OE Automatic Belt Tensioner Line

The DriveAlign Premium OE Automatic Belt Tensioner line by Gates focuses on delivering original equipment (OE) exact replacements for accessory drive belt tensioners. This product line is designed to meet or exceed factory specifications, providing reliable belt tension control for a variety of vehicle makes and models. The 38177 tensioner assembly is part of this line, ensuring precise fitment and consistent operation in compatible vehicles.

Product Details and Specifications

This accessory drive belt tensioner assembly features a steel construction that offers durability under demanding engine conditions. It includes a single pulley without flanges, designed specifically for V-ribbed belt systems commonly found in many GM and Saab vehicles. The pulley measures 3.23 inches (82 mm) in outside diameter and 1.06 inches (27 mm) in width, with a bearing bore inside diameter of 0.67 inches (17 mm). The smooth backside contact surface helps reduce belt wear and noise. With one mounting hole, the tensioner is straightforward to install and aligns with OE specifications for a precise fit.

Compatible Vehicles and Applications

• Buick models including LaCrosse, Regal, and Verano
• Chevrolet models such as Malibu, Equinox, Cobalt, and HHR
• GMC Terrain
• Oldsmobile Alero and Aurora
• Pontiac Grand Am, G5, G6, and Solstice
• Saab 9-3 and 9-3X
• Saturn Aura, Ion, Vue, and Sky

Common Issues Addressed by This Belt Tensioner

• Excessive belt slack causing slipping or noise
• Uneven belt wear due to improper tension
• Loss of tensioner spring force leading to belt failure
• Worn or damaged pulley bearings causing rough operation
• Misalignment of accessory drive belt components

Installation Notes and Tips

Ensure the engine is cool before beginning installation. Verify the correct belt routing and tensioner orientation for your specific vehicle model. Use appropriate tools to remove the old tensioner and install the Gates DriveAlign Premium OE Automatic Belt Tensioner 38177 securely. Check belt alignment and tension after installation to prevent premature wear.

Quality Assurance and Warranty

The Gates DriveAlign Premium OE Automatic Belt Tensioner 38177 is manufactured to meet original equipment standards, providing reliable performance and durability. This part carries an OE comparison rating, confirming its exact fit and function. Please refer to Gates' official warranty policy for coverage details.