Hayden 5002 Accessory Drive Belt Idler Pulley - Air Conditioning Bracket

Overview of Hayden Pulley Accessory Drive Belt Idler Pulley 5002

The Hayden Pulley 5002 is a steel accessory drive belt idler pulley designed for select INFINITI and Nissan vehicles. Engineered to meet or exceed OEM specifications, this idler pulley supports serpentine belt systems on models such as the Nissan 240SX, NX, Pathfinder, and QX4.

• Constructed from durable steel with a black finish
• Compatible with serpentine belt systems featuring 5 grooves
• Outside diameter measures 3.125 inches (79.375 mm)
• Inside diameter of 0.46875 inches (11.906 mm)
• Width of 23.9 mm (0.94 inches) suitable for 0.75 inch (19.05 mm) belt width
• Single mount hole design for secure installation
• Meets or exceeds OEM quality standards
• Mounting hardware not included

Hayden Pulley Product Line Details

The Hayden Pulley product line focuses on precision-engineered pulley components for accessory drive belt systems. This line includes idler and tensioner pulleys designed to maintain proper belt tension and alignment, ensuring reliable operation of engine accessories. The Pulley 5002 is part of this line, offering a steel construction and exact fitment for specific INFINITI and Nissan models.

Detailed Product Description

The Hayden Pulley 5002 idler pulley is crafted from steel to provide strength and durability under continuous engine operation. Its black finish offers corrosion resistance, extending service life. Designed with five grooves, it accommodates serpentine belts with a width of 0.75 inches (19.05 mm), commonly used in accessory drive systems. The pulley’s dimensions, including a 3.125-inch outside diameter and a 0.46875-inch inside diameter, ensure precise fitment and smooth belt tracking. This pulley is compatible with the Nissan 240SX, NX, Pathfinder, and QX4, as well as select INFINITI models, making it a reliable replacement part for maintaining proper belt tension and reducing wear.

Common Applications and Issues Addressed

• Restores proper belt tension in serpentine belt systems
• Eliminates belt slippage and squealing noises
• Prevents premature belt wear caused by misalignment
• Replaces worn or damaged idler pulleys to maintain accessory function
• Supports smooth operation of alternator, power steering, and A/C compressor belts

Installation Notes and Tips

• Verify compatibility with your vehicle’s make and model before installation
• Ensure the serpentine belt width matches the pulley groove width (0.75 inches)
• Use appropriate tools to remove the old pulley and install the new one securely
• Check belt alignment and tension after installation to prevent premature wear
• Mounting hardware is not included; reuse existing hardware or source OEM replacements

Quality Assurance and Warranty

The Hayden Pulley 5002 meets or exceeds OEM quality standards, ensuring reliable performance and durability. Manufactured with precision steel components, this idler pulley is designed for long-term use in demanding automotive environments. While mounting hardware is not included, the product is backed by Hayden’s commitment to quality and fitment accuracy for INFINITI and Nissan vehicles. Please consult the manufacturer or distributor for specific warranty details.