Gates 38289 Accessory Drive Belt Tensioner Assembly - Accessory Drive

Reliable Automatic Belt Tensioner for Select GM Vehicles

The Gates DriveAlign Premium OE Automatic Belt Tensioner (Part Number 38289) is engineered to maintain optimal tension on the accessory drive belt system. Designed for compatibility with various Buick, Chevrolet, Oldsmobile, and Pontiac models, this tensioner ensures consistent belt performance and longevity.

• Constructed from durable thermoplastic material for strength and heat resistance
• Single smooth backside pulley with a 2.99 inch (76 mm) outside diameter
• Compatible with V-ribbed belt types commonly used in accessory drive systems
• Four mounting holes for secure installation
• Precision bearing bore inside diameter of 0.67 inch (17 mm) for smooth operation
• Width of 0.98 inch (25 mm) to fit exact OE specifications
• Includes tensioner assembly and two 90-degree connectors for installation

About the DriveAlign Premium OE Automatic Belt Tensioner Line

The DriveAlign Premium OE Automatic Belt Tensioner line by Gates is designed to meet original equipment standards, providing exact OE comparison ratings. This product line focuses on delivering reliable tension control for accessory drive belt systems, ensuring proper belt alignment and reducing premature wear. The 38289 tensioner assembly is part of this line, offering a thermoplastic construction and precise dimensions tailored for specific GM vehicles.

Detailed Product Description

This accessory drive belt tensioner assembly features a thermoplastic body that withstands engine bay temperatures and mechanical stress. The single pulley is smooth on the contact surface, designed for V-ribbed belts, which are standard in many Buick, Chevrolet, Oldsmobile, and Pontiac models such as the Camaro, Firebird, Bonneville, and Regal. The tensioner’s 0.67 inch (17 mm) bearing bore ensures smooth rotation, while the 2.99 inch (76 mm) pulley diameter and 0.98 inch (25 mm) width match OEM specifications for proper belt engagement. The four mounting holes provide a secure fit, minimizing vibration and belt slippage during operation.

Common Applications and Issues Addressed

• Maintains proper tension on V-ribbed accessory drive belts
• Prevents belt slippage and squealing noises
• Reduces premature belt wear and extends belt life
• Eliminates engine accessory misalignment issues
• Helps avoid overheating caused by belt-driven cooling system failures

Installation Notes and Tips

• Ensure vehicle compatibility with Buick, Chevrolet, Oldsmobile, and Pontiac models listed
• Use proper tools to remove the old tensioner and install the new assembly securely using all four mounting holes
• Check belt alignment and tension after installation to confirm proper operation
• Replace any worn or damaged V-ribbed belts during installation for optimal performance

Quality Assurance and Warranty

The Gates DriveAlign Premium OE Automatic Belt Tensioner (Part Number 38289) is manufactured to meet OE exact standards, ensuring reliable performance and durability. Gates provides quality assurance backed by their established reputation in automotive components. Please refer to Gates’ official warranty policy for specific coverage details.