Gates 39390 Accessory Drive Belt Tensioner Assembly - Serpentine

Overview of Gates DriveAlign Premium OE Automatic Belt Tensioner 39390

The Gates DriveAlign Premium OE Automatic Belt Tensioner 39390 is engineered for reliable accessory drive belt tension in select Mazda vehicles. 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
• Compatible with V-ribbed belt systems
• Includes tensioner assembly, mounting bolt, and hydraulic damper
• Features a single pulley with a 2.56 inch (65 mm) outside diameter
• Mounting with two holes for secure installation
• Bearing bore inside diameter of 0.67 inch (17 mm)
• Width measures 1 inch (25.5 mm)
• Non-flanged pulley design

Detailed Product Description

This accessory drive belt tensioner assembly from Gates is specifically designed to maintain optimal tension on V-ribbed belts in Mazda models such as the Mazda 3, Mazda 6, CX-3, CX-5, CX-9, CX-30, CX-50, MX-5, and MX-5 Miata. The thermoplastic construction provides resistance to wear and heat, while the smooth backside contact surface minimizes belt wear. The tensioner includes a hydraulic damper to reduce vibration and noise, contributing to smoother engine operation. With a precise bearing bore diameter of 17 mm and a pulley diameter of 65 mm, this part meets original equipment (OE) performance standards.

About the DriveAlign Premium OE Automatic Belt Tensioner Line

The DriveAlign Premium OE Automatic Belt Tensioner product line by Gates focuses on delivering OE performance and fitment for accessory drive belt systems. This line is engineered to match or exceed factory specifications, ensuring proper belt tension and alignment for reliable engine accessory operation. The 39390 tensioner assembly is part of this line, providing a direct replacement solution for compatible Mazda vehicles.

Common Applications and Issues Addressed

• Maintains proper tension on V-ribbed accessory belts
• Prevents belt slippage and premature wear
• Reduces noise and vibration from belt drive system
• Addresses belt misalignment issues
• Replaces worn or damaged belt tensioners in Mazda 3, CX-5, MX-5, and other compatible models

Installation Notes and Tips

• Ensure compatibility with your specific Mazda model and year before installation
• Use the included mounting bolt and follow torque specifications from the vehicle manufacturer
• Inspect the accessory belt for wear and replace if necessary during installation
• Verify proper belt alignment and tension after installation

Quality Assurance and Warranty

The Gates DriveAlign Premium OE Automatic Belt Tensioner 39390 is manufactured to meet OE performance standards, ensuring reliable operation and durability. This part includes a hydraulic damper for enhanced vibration control. Warranty coverage details should be confirmed with the original equipment manufacturer or authorized distributor.