Gates K120842 Serpentine Belt

Reliable Serpentine Belt for Automotive Applications

The Gates Premium OE Micro-V Belt K120842 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 84.23 inches (2139 mm) ensuring proper routing
• Constructed with polyester cord material for enhanced strength and flexibility
• Epdm belt material for resistance to heat, wear, and environmental factors
• 12 ribs for optimal grip and power transmission
• 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 (OE) performance standards. This product line focuses on delivering reliable fit and function, using materials such as EPDM and polyester cords to ensure durability and longevity. The K120842 belt is part of this line, providing a direct replacement option for vehicles requiring a K-section serpentine belt with 12 ribs and specific length and width dimensions.

Technical Details and Specifications

The K120842 serpentine belt features a top width of 1.647 inches (42 mm) and an effective length of 2139 mm (84.23 inches), with an outside circumference of approximately 2154 mm (84.799 inches). Its 12-rib design allows for smooth power transmission across multiple accessory pulleys. The belt’s polyester cord material enhances tensile strength, while the EPDM rubber compound offers resistance to heat, ozone, and wear, making it suitable for demanding automotive environments.

Common Applications and Problem Solving

• Replacement for worn or cracked serpentine belts causing squealing or slipping
• Restores proper accessory drive function in vehicles with K-section belt requirements
• Addresses belt degradation due to heat exposure and environmental wear
• Prevents power loss to alternator, water pump, and other engine accessories
• Compatible with vehicles requiring a 12-rib, 1.647-inch wide serpentine belt

Installation Notes and Tips

Ensure the belt routing matches the vehicle’s accessory drive diagram before installation. Verify the belt length and rib count correspond to the original equipment specifications. Use proper tensioning tools to avoid over-tightening, which can reduce belt life. Inspect pulleys and tensioners for wear during replacement to maintain optimal belt performance.

Quality Assurance and Warranty

The Gates Premium OE Micro-V Belt K120842 is manufactured to meet OE performance standards, ensuring reliable operation and durability. The belt material and construction undergo rigorous quality control to provide consistent fit and function. Warranty coverage details should be confirmed with the product documentation or supplier.