Gates K120979 Serpentine Belt - Fan or Fan and Alternator

Reliable Serpentine Belt for Automotive Applications

The Gates Premium OE Micro-V Belt K120979 is engineered to deliver consistent performance in automotive accessory drive 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 of 97.54 inches (2478 mm) ensuring proper routing
• 12 ribs for optimal grip and power transmission
• Constructed with EPDM belt material and polyester cord for durability
• Cross section designation K, standard automotive v-ribbed belt type

About the Gates Premium OE Micro-V Belt Line

The Premium OE Micro-V Belt line by Gates is designed to meet original equipment (OE) performance standards. This product line focuses on delivering reliable fit and function, using high-quality EPDM materials and polyester cords to resist wear and extend belt life. The K120979 belt is part of this line, ensuring compatibility with specific vehicle accessory drive systems requiring a K-section serpentine belt.

Product Details and Specifications

The K120979 serpentine belt features a top width of 1.647 inches (42 mm) and an effective length of 97.54 inches (2478 mm), with an outside circumference of approximately 98.11 inches (2492 mm). Its 12-rib design provides consistent contact with pulleys, reducing slippage and maintaining engine accessory performance. The belt's EPDM construction offers resistance to heat, ozone, and wear, while the polyester cord enhances tensile strength and flexibility. This belt is classified as a standard automotive v-ribbed belt, suitable for various vehicle makes and models requiring a K-section belt.

Common Applications and Issues Addressed

• Replacement for worn or cracked serpentine belts in automotive accessory drive systems
• Eliminates belt slippage and squealing noises caused by degraded belts
• Restores proper operation of alternator, power steering pump, and air conditioning compressor
• Prevents belt failure that can lead to engine overheating or loss of electrical charging
• Compatible with vehicles requiring a 12-rib K-section belt with specified dimensions

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 periodically for signs of wear, cracking, or glazing to maintain optimal performance.

Quality Assurance and Warranty

The Gates Premium OE Micro-V Belt K120979 is manufactured to meet OE performance standards, providing reliable durability and fit. Gates backs this product with quality control processes to ensure consistent manufacturing. Please refer to Gates’ official warranty policy for specific coverage details.