Gates 90K-39159B Serpentine Belt Drive Component Kit

Reliable Accessory Belt Drive Kit for Chevrolet and GMC Trucks

The Gates Accessory Belt Drive Kit 90K-39159B is designed to provide a complete serpentine belt drive solution for select Chevrolet and GMC heavy-duty trucks. This kit includes a high-quality belt, tensioner, and two idler pulleys engineered to meet the demands of Express 2500, Express 3500, Sierra 2500 HD, Sierra 3500 HD, Silverado 2500 HD, and Silverado 3500 HD models.

• Complete serpentine belt drive component kit including belt, tensioner, and two idler pulleys
• Belt outside circumference: 120.1 inches (3051 mm)
• Belt top width: 0.807 inches (20 mm)
• Includes tensioner assembly part number 39159
• Idler pulleys part number 38006 (two included)
• Belt part number K061195hd

About the Gates Accessory Belt Drive Kit

The Accessory Belt Drive Kit from Gates is a comprehensive solution designed to replace critical serpentine belt system components in heavy-duty trucks. This kit ensures proper belt tension and routing by including a tensioner and two idler pulleys, which work together to maintain optimal accessory drive performance. The belt’s precise dimensions—120.1 inches in outside circumference and 0.807 inches in width—are engineered to match factory specifications for the specified Chevrolet and GMC models.

Detailed Product Description

This serpentine belt drive component kit (part number 90K-39159B) is tailored for use in Chevrolet Express 2500 and 3500, GMC Sierra 2500 HD and 3500 HD, and Silverado 2500 HD and 3500 HD trucks. The kit includes a durable belt (K061195hd) with an outside circumference of 120.1 inches (3051 mm) and a top width of 0.807 inches (20 mm), ensuring proper fit and function. The included tensioner assembly (39159) and two idler pulleys (38006) maintain correct belt tension and alignment, reducing wear and preventing slippage. This kit is ideal for restoring the accessory drive system to factory standards.

Common Applications and Issues Addressed

• Replacement of worn or cracked serpentine belts
• Resolving belt slippage or squealing noises
• Correcting improper belt tension due to faulty tensioners
• Replacing damaged or noisy idler pulleys
• Maintaining proper accessory drive system performance in heavy-duty Chevrolet and GMC trucks

Installation Notes and Tips

When installing the Gates Accessory Belt Drive Kit 90K-39159B, ensure the belt routing matches the vehicle’s factory diagram. Verify that the tensioner assembly (39159) is properly seated and that the idler pulleys (38006) spin freely without resistance. It is recommended to inspect all accessory drive components for wear during installation and replace any additional parts as needed to maintain system integrity.

Quality Assurance and Warranty

Gates manufactures the Accessory Belt Drive Kit to meet stringent quality standards, ensuring reliable performance and durability. The components are engineered to OEM specifications for the specified Chevrolet and GMC models. Please refer to Gates’ official warranty policy for detailed coverage information.