Gates K060397SF Stretch Fit Micro-V Serpentine Belt - 6-Rib 40-3/8 Inch

The Gates K060397SF is a premium Stretch Fit Micro-V serpentine belt engineered specifically for vehicles equipped with stretch fit drive systems that operate without traditional tensioners. This 6-rib belt features Gates' exclusive self-tensioning Twistlock technology that maintains proper tension throughout the belt's service life.

Twistlock Self-Tensioning Technology:

Unlike conventional serpentine belts, this Stretch Fit belt is manufactured shorter than its actual working length. During installation, the belt stretches over the pulleys and automatically tensions itself, eliminating the need for external tensioners. The specially formulated adhesive literally locks onto the advanced polyamide tensile cord, allowing the cord to elongate and stretch while never losing tension over the life of the belt.

Key Features:

• 6-rib configuration with 40-3/8 inch outside circumference (39.78 inch effective length)
• 0.807 inch top width designed for precise pulley engagement
• Patented EPDM rubber construction with nylon cord reinforcement for superior durability
• Highly engineered EPDM belt ribs extremely resistant to oil contamination, wear, and pilling
• Advanced polyamide tensile cord provides optimal strength and flexibility
• Maintains proper tension automatically throughout belt life for optimum load-carrying capacity
• OE-quality construction meeting original equipment specifications

Important Installation Notes:

Stretch Fit belts require a special installation tool for proper fitment. These belts are designed for single-use only and must be replaced if removed—they cannot be reused once installed. Always verify compatibility with your vehicle's stretch fit drive system before installation.

Cross-Reference Compatibility:

Replaces OEM part numbers including Ford BE8Z-8620-A, Ford AE8Q-6C301-AA, Ford AE8Q-6D314-AA, Motorcraft JK6414A, ACDelco 6K397SF, Continental 4060402S, Continental 4060408S, Dayco E060393, and NAPA 25-060397SF.