Gates 39359 Accessory Drive Belt Tensioner Assembly

Overview of Gates DriveAlign Premium OE Automatic Belt Tensioner

The Gates DriveAlign Premium OE Automatic Belt Tensioner (Part Number 39359) is engineered for reliable accessory drive belt tension in select Subaru models. Designed with thermoplastic material and a smooth backside contact surface, this tensioner assembly ensures consistent belt alignment and performance.

• Constructed from durable thermoplastic for long-lasting use
• Single pulley design without flange for precise belt tracking
• Compatible with V-ribbed belt systems
• Mounting hole quantity: 1 for straightforward installation
• Dimensions: 2.76 inch (70 mm) outside diameter, 1 inch (25.5 mm) width
• Bearing bore inside diameter: 0.67 inch (17 mm)
• OE comparison rating: OE improved for enhanced fit and function

Product Line Details: DriveAlign Premium OE Automatic Belt Tensioner

The DriveAlign Premium OE Automatic Belt Tensioner line by Gates focuses on delivering tensioner assemblies that meet or exceed original equipment specifications. This product line emphasizes improved durability and precise belt tension control, which helps maintain optimal accessory drive system performance. The 39359 tensioner is part of this line, offering a thermoplastic construction and smooth contact surface designed specifically for V-ribbed belt applications.

Detailed Product Description

This accessory drive belt tensioner assembly is designed to maintain proper tension on the V-ribbed belt system found in various Subaru vehicles, including the BRZ, Crosstrek, Forester, Impreza, Legacy, Outback, WRX, XV, and XV Crosstrek. The tensioner features a single pulley without a flange, which helps reduce belt wear and ensures smooth operation. Its thermoplastic material construction provides resistance to heat and wear, contributing to longer service life. The bearing bore inside diameter of 0.67 inches (17 mm) supports smooth rotation, while the 2.76 inch (70 mm) outside diameter and 1 inch (25.5 mm) width dimensions are optimized for the specified belt system.

Common Applications and Issues Addressed

• Maintains proper tension on V-ribbed accessory drive belts
• Prevents belt slippage and noise in Subaru BRZ and Forester models
• Reduces premature belt wear in Subaru Outback and Legacy vehicles
• Helps avoid accessory component misalignment in Subaru WRX and Impreza
• Improves belt tracking and extends belt life in Subaru Crosstrek and XV

Installation Notes and Tips

• Ensure compatibility with Subaru models: BRZ, Crosstrek, Forester, Impreza, Legacy, Outback, WRX, XV, and XV Crosstrek
• Verify belt type as V-ribbed before installation
• Use proper tools to avoid damage to the thermoplastic tensioner body
• Check pulley alignment and mounting hole position during installation
• Follow vehicle manufacturer torque specifications for mounting bolt

Quality Assurance and Warranty

The Gates DriveAlign Premium OE Automatic Belt Tensioner (Part Number 39359) is manufactured to meet or exceed original equipment standards, providing reliable performance and durability. This product carries an OE comparison rating of OE improved, indicating enhanced fit and function over standard replacements. Warranty coverage details should be confirmed with the product documentation or supplier.