Gates K120870HD Serpentine Belt

Reliable Heavy Duty Serpentine Belt for Automotive Applications

The Gates FleetRunner Heavy Duty Micro-V Belt K120870HD is engineered to deliver consistent performance in demanding automotive environments. Designed with durable materials and precise dimensions, this serpentine belt supports accessory drive systems in various vehicle makes and models requiring a heavy duty solution.

• Top width: 1.647 inches (42 mm)
• Effective length: 87.03 inches (2211 mm)
• Outside circumference: 87.625 inches (2225 mm)
• 12 ribs for enhanced grip and power transmission
• Constructed with EPDM belt material and polyester cord for durability
• Cross section designation: K, suitable for automotive v-ribbed belt systems
• OE improved comparison rating for reliable fit and function

About the FleetRunner Heavy Duty Micro-V Belt Line

The FleetRunner Heavy Duty Micro-V Belt line by Gates is designed specifically for commercial and heavy duty automotive applications. This product line focuses on enhanced durability and resistance to wear, making it suitable for vehicles that operate under higher stress conditions. The K120870HD part number represents a belt built to meet or exceed original equipment specifications, ensuring compatibility and longevity in accessory drive belt systems.

Product Details and Specifications

This serpentine belt features a 12-rib design that provides improved power transmission and reduced slippage in accessory drive systems. The belt's EPDM (ethylene propylene diene monomer) material offers resistance to heat, ozone, and wear, while the polyester cord reinforcement enhances tensile strength and flexibility. With an effective length of 87.03 inches and a top width of 1.647 inches, the K120870HD is engineered to fit specific automotive applications requiring a heavy duty v-ribbed belt with a K cross section.

Common Applications and Problem Solving

• Replacement for worn or cracked serpentine belts in heavy duty vehicles
• Addresses belt slippage and loss of accessory function
• Prevents premature belt failure due to heat and wear
• Supports reliable operation of alternators, power steering pumps, and air conditioning compressors
• Suitable for vehicles requiring OE improved belt specifications

Installation Notes and Tips

Ensure proper tensioning of the belt during installation to avoid premature wear or noise. Verify the belt routing matches the vehicle’s accessory drive system diagram. Inspect pulleys and tensioners for wear or damage before installing the new belt. The K120870HD is compatible with automotive systems designed for K-section v-ribbed belts with 12 ribs and the specified dimensions.

Quality Assurance and Warranty

Gates manufactures the FleetRunner Heavy Duty Micro-V Belt to meet stringent quality standards, providing reliable performance in heavy duty automotive applications. This belt carries an OE improved comparison rating, indicating it meets or exceeds original equipment requirements. Warranty coverage details should be confirmed with the product supplier or manufacturer documentation.