Four Seasons 45052 Accessory Drive Belt Idler Pulley

Reliable Accessory Drive Belt Idler Pulley for Mercedes-Benz

The Four Seasons Pulley 45052 is a durable accessory drive belt idler pulley designed specifically for select Mercedes-Benz models including the 190E, 260E, 300CE, 300E, 300SE, and 300SEL. Engineered to meet or exceed OEM specifications, this black plastic pulley ensures consistent serpentine belt tension and smooth operation.

Key Features of Four Seasons Pulley 45052

• Material: High-quality black plastic construction for durability
• Inside Diameter: 0.875 inches (7.9375 mm)
• Outside Diameter: 2.750 inches (69.85 mm)
• Width: 1.062 inches (27 mm)
• Groove Quantity: 6 grooves compatible with serpentine belts
• Belt Width Compatibility: 1.000 inch (22.225 mm)
• Mount Hole Quantity: Single mounting hole for secure installation
• Meets or exceeds OEM standards for reliable performance
• Designed as an idler/tensioner pulley for accessory drive belt systems

Detailed Description of the Four Seasons Pulley 45052

This accessory drive belt idler pulley from Four Seasons is part of the Pulley product line, which focuses on precision-engineered components for belt drive systems. The pulley is constructed from durable plastic and features six grooves to accommodate serpentine belts with a width of 1 inch (22.225 mm). Its dimensions, including a 0.875 inch inside diameter and 2.75 inch outside diameter, are tailored to fit the accessory drive belt system of various Mercedes-Benz models such as the 190E and 300SEL. The single mounting hole design allows for straightforward installation, although mounting hardware is not included. This pulley is designed to maintain proper belt tension and alignment, reducing wear and improving the longevity of the belt system.

Applications and Common Issues Addressed

• Restores proper tension to serpentine belts in Mercedes-Benz 190E, 260E, 300CE, 300E, 300SE, and 300SEL models
• Replaces worn or damaged idler pulleys causing belt slippage or noise
• Prevents premature belt wear due to misalignment or pulley failure
• Eliminates squealing or chirping noises from the accessory drive system
• Supports smooth operation of alternator, power steering, and air conditioning belts

Installation Notes and Tips

• Verify compatibility with your specific Mercedes-Benz model before installation
• Ensure the serpentine belt width matches the pulley groove width of 1 inch (22.225 mm)
• Use appropriate tools to remove the old pulley and install the new one securely
• Note that mounting hardware is not included and may need to be reused or sourced separately
• Inspect the belt and other drive components during installation for optimal system performance

Quality Assurance and Warranty Information

The Four Seasons Pulley 45052 meets or exceeds OEM quality standards, providing reliable performance for your Mercedes-Benz accessory drive belt system. Manufactured with precision and tested for durability, this idler pulley supports consistent belt tension and alignment. Warranty details are provided by Four Seasons and typically cover defects in material and workmanship under normal use conditions.