Gates K120720 Serpentine Belt - Alternator and Water Pump

Reliable Serpentine Belt for Automotive Applications

The Gates Premium OE Micro-V Belt K120720 is engineered to deliver consistent performance in accessory drive belt systems. Designed with durable materials and precise dimensions, this serpentine belt supports efficient engine operation in various vehicle makes and models.

• Top width of 1.647 inches (42 mm) for accurate fitment
• Effective length approximately 72.07 inches (1831 mm) ensuring proper routing
• 12 ribs for optimal grip and power transmission
• Constructed with EPDM belt material for enhanced durability and heat resistance
• Polyester cord material for strength and flexibility
• Cross section designation K, compatible with standard automotive v-ribbed belt systems

About the Gates Premium OE Micro-V Belt Line

The Premium OE Micro-V Belt line by Gates is designed to meet original equipment performance standards. This product line focuses on delivering reliable fit and function, using materials like EPDM and polyester cords to withstand the demands of modern engines. The K120720 part number represents a specific size and rib configuration within this line, suitable for vehicles requiring a 12-rib serpentine belt with a K cross section.

Technical Details and Specifications

The K120720 serpentine belt features a top width of 1.647 inches (42 mm) and an effective length of 72.07 inches (1831 mm), with an outside circumference close to 72.63 inches (1845 mm). Its 12-rib design ensures consistent contact with pulleys, reducing slippage and wear. The EPDM belt material offers resistance to heat, ozone, and wear, while the polyester cord provides tensile strength and flexibility. This belt is classified as an automotive v-ribbed belt (standard), making it suitable for a range of accessory drive systems.

Common Applications and Problem Solving

• Replacement for worn or cracked serpentine belts in vehicles requiring a 12-rib K-section belt
• Addresses belt slippage and squealing noises caused by degraded belt material
• Helps restore proper operation of alternators, power steering pumps, and air conditioning compressors
• Prevents premature belt failure due to heat and environmental exposure
• Compatible with vehicles that specify a belt with dimensions and rib count matching part number K120720

Installation Notes and Tips

Ensure the belt routing matches the vehicle manufacturer’s diagram before installation. Check pulleys and tensioners for wear or damage to avoid premature belt failure. Use proper tensioning tools to achieve the recommended belt tension. Inspect the belt for any damage or defects prior to installation. The K120720 belt is designed for direct replacement in compatible vehicles requiring a 12-rib K-section serpentine belt.

Quality Assurance and Warranty

Gates Premium OE Micro-V Belts are manufactured to meet or exceed original equipment specifications. The use of EPDM and polyester materials ensures durability and resistance to environmental factors. This product carries an OE comparison rating, indicating it meets the performance standards expected by vehicle manufacturers. Warranty coverage details should be confirmed with the product supplier or manufacturer.