Four Seasons 45077 Accessory Drive Belt Idler Pulley - Lower

Reliable Accessory Drive Belt Idler Pulley for Nissan Vehicles

The Four Seasons Pulley 45077 is a steel accessory drive belt idler pulley designed specifically for select Nissan models including Altima, Maxima, Murano, and Quest. 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 durable steel with a black finish for corrosion resistance
• Outside diameter of 3.000 inches (75 mm) and width of 1.4 inches (35.5 mm)
• Smooth groove design suitable for back idler belt type
• Inside diameter of approximately 0.47 inches (12 mm) for precise fitment
• Compatible with Nissan Altima, Maxima, Murano, and Quest models
• Meets or exceeds OEM quality standards for reliable performance
• Part number 45077 for accurate identification and replacement

About the Four Seasons Pulley Product Line

The Four Seasons Pulley line focuses on accessory drive belt system components engineered for durability and precise fit. This product line includes idler and tensioner pulleys designed to maintain proper belt tension and alignment, reducing wear on belts and associated components. The 45077 idler pulley is part of this line, offering a steel construction and smooth groove profile tailored for Nissan vehicles requiring a back idler belt configuration.

Product Details and Specifications

This idler pulley features a steel body finished in black to resist corrosion and wear. It has a smooth groove profile, making it compatible with back idler belt types commonly found in Nissan accessory drive systems. The pulley measures 3.000 inches (75 mm) in outside diameter and 1.4 inches (35.5 mm) in width, with an inside diameter of 0.47 inches (12 mm) to fit securely on the mounting shaft. The single mount hole design allows for straightforward installation. Note that mounting hardware is not included with this part.

Common Applications and Issues Addressed

• Restores proper belt tension and alignment in Nissan Altima, Maxima, Murano, and Quest
• Eliminates belt slippage and squealing noises caused by worn or damaged pulleys
• Prevents premature belt wear and potential accessory drive system failure
• Replaces noisy or seized idler pulleys to maintain smooth engine operation
• Supports accessory components such as alternator, power steering, and air conditioning belts

Installation Notes and Tips

Ensure the pulley is compatible with your specific Nissan model and belt configuration before installation. The Four Seasons Pulley 45077 requires a single mounting point and does not include mounting hardware, so retain or source appropriate bolts. Inspect the accessory drive belt for wear and replace if necessary during pulley installation. Proper torque specifications should be followed to avoid damage or misalignment.

Quality Assurance and Warranty

The Four Seasons Pulley 45077 meets or exceeds OEM standards, providing reliable performance and durability. Manufactured with precision steel construction, this idler pulley is designed to withstand the demands of accessory drive systems in Nissan vehicles. Warranty coverage details should be confirmed with the original product documentation or supplier.