Gates 90K-38178A Serpentine Belt Drive Component Kit

Reliable Serpentine Belt Drive Component Kit for Chevrolet and GMC

The Gates Accessory Belt Drive Kit 90K-38178A offers a complete serpentine belt drive solution designed for select Chevrolet, GMC, Hummer, and Isuzu models. This kit includes a belt, tensioner, and idler pulley engineered to meet precise specifications for optimal accessory drive performance.

• Complete serpentine belt drive component kit including belt, tensioner assembly, and idler pulley
• Belt outside circumference: 92.13 inches (2340 mm)
• Belt top width: 0.807 inches (20 mm)
• Tensioner assembly part number: 38178
• Idler pulley part number: 36301
• Compatible with Chevrolet Canyon, Colorado; GMC Canyon, Colorado; Hummer H3, H3T; Isuzu i-280, i-290, i-350, i-370

About the Gates Accessory Belt Drive Kit

The Gates Accessory Belt Drive Kit line provides comprehensive solutions for accessory drive systems, combining high-quality belts with matching tensioners and idler pulleys. This integrated approach ensures proper fitment and reliable operation, reducing the risk of premature wear or failure. The 90K-38178A kit is designed to maintain correct belt tension and alignment, critical for the accessory components on your vehicle.

Detailed Product Description

This serpentine belt drive component kit features a belt with an outside circumference of 92.13 inches (2340 mm) and a top width of 0.807 inches (20 mm), engineered to exacting standards for durability and performance. The included tensioner assembly (part number 38178) maintains optimal belt tension, while the idler pulley (part number 36301) ensures smooth belt routing and reduces vibration. Together, these components support the accessory drive system on Chevrolet Canyon and Colorado, GMC Canyon and Colorado, Hummer H3 and H3T, and Isuzu i-280, i-290, i-350, and i-370 models.

Common Applications and Issues Addressed

• Replacement of worn or cracked serpentine belts causing squealing or slipping
• Resolving belt tensioner failures leading to improper belt tension
• Fixing idler pulley wear that results in belt misalignment or noise
• Preventing accessory drive system failures affecting alternator, power steering, or A/C operation
• Maintaining proper belt routing and tension for reliable engine accessory performance

Installation Notes and Tips

Ensure the engine is cool before beginning installation. Remove the old belt, tensioner, and idler pulley carefully, noting belt routing. Install the new tensioner assembly and idler pulley using the specified part numbers to guarantee fitment. Route the new belt with an outside circumference of 92.13 inches and top width of 0.807 inches according to the vehicle’s belt diagram. Verify proper tension and alignment before starting the engine.

Quality Assurance and Warranty

Gates manufactures the Accessory Belt Drive Kit 90K-38178A to meet or exceed OEM specifications. Each component undergoes rigorous quality control to ensure durability and performance. While specific warranty details vary, Gates typically offers coverage against defects in materials and workmanship. Consult product documentation or authorized sources for exact warranty terms.