Gates 6PK1437EST Micro-V ESTART 6-Rib Serpentine Drive Belt 1437mm

The Gates 6PK1437EST is a Micro-V® ESTART™ 6-rib serpentine drive belt engineered specifically for belt-driven integrated starter generator (BSG) start-stop systems found in modern vehicles. With a length of 1,437mm and a width of 21mm, this belt is built to handle the extreme demands of frequent engine cycling in start-stop applications.

Constructed from crack and heat-resistant EPDM (Ethylene Propylene Diene Monomer) rubber with high-strength Aramid tensile cords, the 6PK1437EST delivers exceptional durability, low noise, and consistent power transfer under the repetitive load cycles that start-stop drivetrains generate. This belt is validated to deliver more than 600,000 start cycles, making it a premium replacement for vehicles equipped with BSG technology.

Key Features:

• Micro-V® ESTART™ design — purpose-built for belt-driven starter generator start-stop drives
• Aramid tensile cord construction — provides superior strength and minimal stretch under high-load starts
• EPDM rubber compound — resists cracking, heat, and wear for extended service life
• 6 ribs, 21mm wide, 1,437mm long — precise OEM-matched dimensions
• Reduced NVH — minimizes noise, vibration, and harshness during start-stop operation
• 600,000+ start cycles — engineered for the demands of modern micro-hybrid drivetrains
• Meets or exceeds SAE J1459, SAE J2432, and SAE J1596 specifications
• OEM cross-reference: Audi 06M 903 137 AF

Gates has been the trusted name in belt technology for over 100 years. The 6PK1437EST is manufactured to OEM specifications, ensuring a direct-fit replacement that restores original performance and reliability in start-stop equipped vehicles.