Gates 39416 Accessory Drive Belt Tensioner Assembly

Reliable Automatic Belt Tensioner for BMW Vehicles

The Gates DriveAlign Premium OE Automatic Belt Tensioner 39416 is engineered to maintain optimal tension on the accessory drive belt system. Designed specifically for select BMW models, this tensioner assembly ensures consistent belt performance and longevity.

• Constructed from durable thermoplastic material for long-lasting use
• Includes two smooth backside pulleys without flanges for precise belt alignment
• Compatible with V-ribbed belt types commonly used in BMW accessory drive systems
• Features a single mounting hole for secure installation
• OE exact fit and performance for BMW 135i, 135is, 335i, 335i GT xDrive, 335i xDrive, and X1 models

DriveAlign Premium OE Automatic Belt Tensioner Product Line

The DriveAlign Premium OE Automatic Belt Tensioner line by Gates focuses on delivering original equipment quality and fitment. This product line is designed to meet or exceed OEM specifications, providing reliable belt tension control and reducing the risk of premature belt wear or failure. The 39416 tensioner assembly is part of this line, ensuring compatibility and performance for BMW accessory drive belt systems.

Detailed Product Description and Specifications

This accessory drive belt tensioner assembly features two pulleys with an outside diameter of 70 mm (2.76 inches) and a width of 30 mm (1.18 inches). Both pulleys have a bearing bore inside diameter of 17 mm (0.67 inches) and a smooth contact surface on the backside, which helps maintain proper belt tracking without the need for flanged edges. The thermoplastic construction offers resistance to heat and wear, contributing to the tensioner's durability under engine operating conditions.

Common Applications and Problem Solving

• Maintains proper tension on V-ribbed belts to prevent slipping and noise
• Prevents premature belt wear caused by misalignment or improper tension
• Reduces risk of accessory drive system failure in BMW 135i, 135is, 335i, 335i GT xDrive, 335i xDrive, and X1 models
• Addresses belt tensioner pulley wear and bearing noise issues
• Helps avoid engine accessory malfunctions related to belt tension loss

Installation Notes and Tips

Ensure the mounting surface is clean and free of debris before installing the tensioner assembly. Verify that the belt type is V-ribbed and matches the vehicle specifications. Use the single mounting hole to secure the tensioner firmly, and check belt alignment after installation to prevent premature wear. Refer to the vehicle’s service manual for torque specifications and installation procedures.

Quality Assurance and Warranty

The Gates DriveAlign Premium OE Automatic Belt Tensioner 39416 is manufactured to meet original equipment standards, providing reliable performance and fitment. This part carries an OE comparison rating of exact fit, ensuring compatibility with specified BMW models. Warranty coverage details should be confirmed with the product supplier or manufacturer.