Hayden 5909 Accessory Drive Belt Idler Pulley - Left

Overview of Hayden Pulley Accessory Drive Belt Idler Pulley 5909

The Hayden Pulley 5909 is a durable accessory drive belt idler pulley designed for select Buick, Chevrolet, and Pontiac models. Engineered to meet or exceed OEM specifications, this black plastic pulley supports serpentine belt systems in vehicles such as the Buick Allure and Chevrolet Impala.

• Material: High-quality black plastic for corrosion resistance
• Outside Diameter: 2.750 inches (70.0 mm)
• Inside Diameter (Bore): 0.394 inches (10.0 mm)
• Width: 1.25 inches (31.8 mm)
• Groove Quantity: 6 grooves compatible with serpentine belts
• Compatible Belt Width: 1.1875 inches (31.75 mm)
• Mount Hole Quantity: Single mounting hole (hardware not included)
• Meets or exceeds OEM standards for reliable performance

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. The Pulley 5909 is part of this line, offering a balance of durability and fitment accuracy for specific GM vehicles.

Detailed Product Description

The Hayden Pulley 5909 idler pulley is constructed from durable plastic material, providing resistance to wear and corrosion in demanding engine environments. Its 2.750-inch outside diameter and 0.394-inch bore diameter ensure compatibility with serpentine belt systems requiring a 6-groove pulley. The pulley width of 1.25 inches supports belt widths up to 1.1875 inches, making it suitable for accessory drive belt systems in Buick Allure, Chevrolet Monte Carlo, Pontiac Grand Prix, and other compatible models. This pulley is designed to maintain proper belt tension and routing, contributing to the efficient operation of engine accessories.

Common Applications and Issues Addressed

• Replacement for worn or damaged idler pulleys causing belt misalignment
• Eliminates belt squeal or slipping due to pulley wear
• Restores proper tension in serpentine belt systems
• Prevents premature belt wear from pulley groove damage
• Supports smooth operation of alternator, power steering, and A/C compressor belts

Installation Notes and Tips

Installation requires removal of the old idler pulley and mounting the Hayden Pulley 5909 using the existing mounting hardware, which is not included with this part. Ensure the mounting hole aligns correctly and torque the pulley bolt to manufacturer specifications. Inspect the serpentine belt for wear during installation and replace if necessary to maintain optimal system performance.

Quality Assurance and Warranty

This Hayden Pulley 5909 meets or exceeds OEM quality standards, ensuring reliable fit and function. While mounting hardware is not included, the pulley is manufactured to precise tolerances for consistent performance. Warranty coverage details should be confirmed with the original equipment manufacturer or distributor.