Four Seasons 45047 Accessory Drive Belt Idler Pulley

Reliable Accessory Drive Belt Idler Pulley for Select GM and Isuzu Models

The Four Seasons Pulley 45047 is a steel accessory drive belt idler pulley designed for use with serpentine belt systems. Engineered to meet or exceed OEM specifications, this pulley is compatible with Chevrolet Canyon, Colorado, GMC Canyon, Hummer H3, H3T, and Isuzu i-280, i-290, and i-350 models.

• Constructed from durable steel with a black finish
• Smooth groove design for serpentine belt compatibility
• Outside diameter: 2.75 inches (69.85 mm)
• Inside diameter: approximately 0.67 inches (17 mm)
• Width: 1.18 inches (30 mm)
• Single mount hole for secure installation
• Designed as a back idler pulley for tensioning and guiding belts
• Compatible with 1.125 inch (28.575 mm) wide serpentine belts
• Meets or exceeds OEM quality standards

Four Seasons Pulley Product Line Overview

The Four Seasons Pulley line focuses on precision-engineered accessory drive components that ensure proper belt tension and alignment. This product line includes idler and tensioner pulleys designed to maintain optimal serpentine belt performance, reducing wear and extending the life of your vehicle’s belt system. The 45047 pulley is part of this line, providing reliable fitment and durability for select GM and Isuzu vehicles.

Product Details and Specifications

The Four Seasons Pulley 45047 is a back idler pulley constructed from steel, finished in black for corrosion resistance. It features a smooth groove surface suitable for serpentine belts with a width of 1.125 inches (28.575 mm). The pulley measures 2.75 inches (69.85 mm) in outside diameter and 1.18 inches (30 mm) in width, with an inside diameter of approximately 0.67 inches (17 mm). This pulley includes one mounting hole and is designed to replace OEM idler or tensioner pulleys on compatible vehicles. Note that mounting hardware is not included with this part.

Common Applications and Problem Resolution

• Restores proper belt tension and alignment in accessory drive systems
• Eliminates belt slippage and squealing noises
• Prevents premature serpentine belt wear or damage
• Replaces worn or damaged idler pulleys on Chevrolet, GMC, Hummer, and Isuzu models
• Supports smooth operation of alternator, power steering, and A/C compressor belts

Installation Notes and Tips

Ensure the vehicle is turned off and cooled before beginning installation. Verify compatibility with your specific make and model, including Chevrolet Canyon, Colorado, GMC Canyon, Hummer H3, H3T, and Isuzu i-280, i-290, or i-350. Use appropriate tools to remove the old pulley and install the Four Seasons Pulley 45047 securely using the existing mounting hardware or hardware specified by the vehicle manufacturer. Since mounting hardware is not included, inspect and replace any worn bolts or fasteners as needed. Proper belt routing and tension should be checked after installation.

Quality Assurance and Warranty

The Four Seasons Pulley 45047 is manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. This part undergoes quality control inspections to maintain consistent fit and function. Please refer to Four Seasons’ warranty policy for specific coverage details.