Four Seasons 45007 Accessory Drive Belt Idler Pulley - Air Conditioning Bracket

Reliable Accessory Drive Belt Idler Pulley for Nissan Vehicles

The Four Seasons Pulley 45007 is a durable accessory drive belt idler pulley designed specifically for Nissan 720, D21, and Pickup models. Engineered to meet or exceed OEM specifications, this pulley ensures consistent belt tension and smooth operation of your vehicle's accessory drive system.

• Constructed from high-quality steel with a black finish for corrosion resistance
• Compatible with V-belt systems featuring a single groove
• Inside diameter of 0.8125 inches and outside diameter of 4.000 inches
• Width of 12.7 mm (0.5 inches) suitable for 0.5 inch belt width
• Designed as an idler/tensioner pulley with one mounting hole
• Meets or exceeds OEM standards for reliable fit and performance

Four Seasons Pulley Product Line Overview

The Four Seasons Pulley line focuses on precision-engineered pulleys for accessory drive belt systems. This product line emphasizes durability and exact fitment, providing components that maintain proper belt tension and alignment. The 45007 idler pulley is part of this line, offering a steel construction and design tailored for Nissan accessory drive applications.

Detailed Product Description and Specifications

This accessory drive belt idler pulley features a steel body finished in black to resist wear and corrosion. It has a single groove designed for V-belts with a 0.5 inch width, making it compatible with specific Nissan 720, D21, and Pickup models. The pulley measures 4.000 inches in outside diameter and 0.8125 inches inside diameter, with a bore diameter of 0.69 inches (17.5 mm). Its 12.7 mm width ensures proper belt engagement and tension. The pulley includes one mounting hole and does not come with mounting hardware, allowing for straightforward installation using existing components.

Common Applications and Issues Addressed

• Restores proper belt tension in Nissan 720, D21, and Pickup accessory drive systems
• Eliminates belt slippage caused by worn or damaged idler pulleys
• Prevents premature belt wear due to misalignment or pulley damage
• Reduces noise and vibration from failing tensioner components
• Supports smooth operation of alternator, power steering, and other belt-driven accessories

Installation Notes and Tips

Ensure the vehicle is turned off and cooled before beginning installation. This pulley replaces the original idler/tensioner pulley and mounts using the existing single mounting hole. Since mounting hardware is not included, reuse the OEM bolts or acquire compatible fasteners. Verify belt alignment and tension after installation to prevent premature wear. Consult the Nissan 720, D21, or Pickup service manual for torque specifications and detailed installation procedures.

Quality Assurance and Warranty Information

The Four Seasons Pulley 45007 is manufactured to meet or exceed OEM quality standards, ensuring reliable performance and durability. This part undergoes rigorous quality control to maintain consistent dimensions and material integrity. While specific warranty details may vary, Four Seasons typically offers a limited warranty covering defects in material and workmanship. Refer to the product packaging or Four Seasons documentation for exact warranty terms.