Gates K040375SF Stretch Fit Micro-V Serpentine Belt

The Gates K040375SF is a Stretch Fit Micro-V Serpentine Belt engineered for accessory drive systems that require a no-tensioner installation design. Unlike traditional serpentine belts, Gates Stretch Fit belts are manufactured with a specially formulated EPDM (Ethylene Propylene Diene Monomer) compound that allows the belt to be stretched directly onto the drive system without the need for a belt tensioner or idler adjustment.

Key Features:

• Stretch Fit Technology: Installs without a tensioner — the belt stretches over pulleys and maintains consistent tension throughout its service life
• Micro-V Profile: Multi-rib V-groove design maximizes surface contact with pulleys for efficient power transfer and reduced slip
• EPDM Construction: Premium rubber compound resists heat, oil, ozone, and cracking for long-lasting durability
• OE-Matched Design: Engineered to meet or exceed original equipment specifications for a direct-fit replacement
• Consistent Tension: Eliminates tension loss over time, reducing accessory component wear
• Gates Quality: Manufactured by Gates, a globally recognized leader in power transmission and fluid transfer solutions

The K040375SF Stretch Fit belt is ideal for replacing worn or damaged serpentine belts on applications where the OEM design uses a fixed, tensioner-free drive system. Gates Stretch Fit belts are a precise, application-specific product — always verify the correct part number for your specific application before installation.