Gates 39487 Accessory Drive Belt Tensioner Assembly - Alternator, Alternator and Water Pump or Serpentine

Reliable Automatic Belt Tensioner for Ford and Lincoln Vehicles

The Gates DriveAlign Premium OE Automatic Belt Tensioner (Part Number 39487) is engineered to maintain optimal tension on the accessory drive belt system. Designed specifically for select Ford and Lincoln models, this tensioner assembly ensures consistent belt performance and longevity.

• Thermoplastic construction for durability and resistance to wear
• Single flanged pulley with a 2.76 inch (70 mm) outside diameter
• Four V-ribbed grooves for secure belt engagement
• Compatible with V-ribbed belt types featuring a 0.87 inch (22 mm) width
• Two mounting holes for secure installation
• Precision bearing bore inside diameter of 0.67 inch (17 mm)

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 specifications, 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 39487 tensioner assembly is part of this line, offering a thermoplastic pulley and precise bearing dimensions to match factory standards.

Detailed Product Description

This accessory drive belt tensioner assembly features a thermoplastic pulley with a flanged design to help maintain belt alignment and prevent slippage. The pulley has four grooves designed for V-ribbed belts, which are common in modern Ford and Lincoln vehicles. With an outside diameter of 2.76 inches (70 mm) and a width of 0.87 inches (22 mm), it fits securely within the belt system. The bearing bore inside diameter measures 0.67 inches (17 mm), ensuring smooth rotation and consistent tension. The assembly includes two mounting holes for proper attachment to the engine.

Compatible Vehicles and Applications

• Ford Bronco and Bronco Sport
• Ford Corsair
• Ford Edge
• Ford Escape
• Ford Explorer
• Lincoln Nautilus
• Ford Ranger

This tensioner assembly is designed to address common accessory drive belt issues such as belt slippage, noise, uneven wear, and loss of tension, which can lead to accessory malfunction or belt failure.

Installation Notes and Tips

• Ensure the correct belt type (V-ribbed) is used with this tensioner
• Verify mounting hole alignment before securing the tensioner
• Inspect the belt and pulleys for wear during installation
• Follow vehicle-specific torque specifications for mounting bolts

Quality Assurance and Warranty

The Gates DriveAlign Premium OE Automatic Belt Tensioner (Part Number 39487) is manufactured to meet OE standards, ensuring reliable performance and durability. Gates provides quality assurance through rigorous testing and material selection. Please refer to Gates' official warranty policy for coverage details.