Gates 90K-39129 Serpentine Belt Drive Component Kit

Overview of Gates Accessory Belt Drive Kit 90K-39129

The Gates Accessory Belt Drive Kit 90K-39129 is designed for reliable serpentine belt system maintenance on select Infiniti and Nissan vehicles. This comprehensive kit includes a belt, tensioner, and three idler pulleys engineered to meet precise fitment requirements for models such as the Infiniti Q70, QX50, and Nissan 370Z.

• Complete serpentine belt drive component kit including belt, tensioner assembly, and three idler pulleys
• Belt outside circumference: 2033 mm (80 inches)
• Belt top width: 24 mm (0.947 inches)
• Tensioner assembly part number: 39129
• Idler pulleys part numbers: 36305 (x2), 36306 (x1)
• Compatible with Infiniti and Nissan models including 370Z, FX37, Q40, Q70, Q70L, QX50, and QX70

Details on the Accessory Belt Drive Kit Product Line

The Gates Accessory Belt Drive Kit line provides a complete solution for accessory drive belt system repairs and replacements. This kit consolidates essential components such as the serpentine belt, tensioner, and idler pulleys into one package, ensuring proper fit and function. The 90K-39129 kit is tailored to maintain optimal belt tension and alignment, which is critical for the accessory drive system's performance and longevity.

Technical Specifications and Compatibility

The serpentine belt included in this kit measures 2033 mm (80 inches) in outside circumference with a top width of 24 mm (0.947 inches), matching the original equipment specifications for the listed Infiniti and Nissan vehicles. The kit contains a tensioner assembly (part number 39129) and three idler pulleys (two with part number 36305 and one with 36306), all designed to work seamlessly together. This ensures consistent belt routing and tension, reducing the risk of premature wear or failure.

Common Applications and Problem Resolution

• Replacement of worn or cracked serpentine belts on Infiniti Q70 and Nissan 370Z
• Addressing belt slippage or squealing noises due to tensioner or idler pulley wear
• Resolving accessory drive system failures caused by misaligned or damaged components
• Preventing overheating or loss of power steering from belt system malfunction
• Maintaining proper operation of alternator, water pump, and air conditioning compressor

Installation Notes and Tips

When installing the Gates Accessory Belt Drive Kit 90K-39129, ensure the vehicle is off and cooled down. Remove the old belt and inspect the pulleys and tensioner for wear. Replace all components included in the kit to maintain system integrity. Use proper tools to relieve tension on the belt tensioner and route the new belt according to the vehicle’s belt routing diagram. Verify correct belt alignment and tension before starting the engine.

Quality Assurance and Warranty

Gates manufactures the Accessory Belt Drive Kit 90K-39129 to meet stringent quality standards. Each component is engineered for durability and precise fitment to the specified Infiniti and Nissan models. While specific warranty details are not provided here, Gates typically offers limited warranties on their belt drive kits covering defects in materials and workmanship. Consult product documentation or authorized distributors for exact warranty terms.