Gates 39401 DriveAlign Automatic Belt Drive Tensioner

The Gates 39401 DriveAlign Automatic Belt Drive Tensioner is engineered to maintain optimal belt tension throughout the service life of your serpentine belt system. This precision-manufactured tensioner automatically compensates for belt stretch and wear, ensuring consistent performance and preventing premature belt failure.

Key Features:

• Automatic tensioning system maintains proper belt tension without manual adjustment
• Durable steel construction for long-lasting performance in demanding engine environments
• Smooth/backside pulley design compatible with standard serpentine belt systems
• Precision-engineered spring mechanism provides consistent tension force
• OE-quality construction meets or exceeds original equipment specifications
• Compact dimensions: 65 mm x 17 mm x 29.5 mm pulley

Gates DriveAlign tensioners are designed to work seamlessly with Gates Micro-V belts and other quality serpentine belts. The smooth backside pulley surface minimizes belt wear while the internal damping mechanism reduces vibration and noise. This tensioner is a direct-fit replacement part that restores proper belt system operation and extends the life of your accessory drive components.