Hayden 5987 Accessory Drive Belt Tensioner Pulley

Overview of Hayden Pulley Accessory Drive Belt Tensioner Pulley

The Hayden Pulley 5987 is a precision-engineered accessory drive belt tensioner pulley designed for select Mercedes-Benz models. Crafted from durable black plastic, this pulley supports serpentine belt systems, ensuring smooth and reliable operation in vehicles like the Mercedes-Benz 190E, 300E, and C36 AMG.

• Material: High-quality black plastic construction
• Outside Diameter: 2.750 inches (69.85 mm)
• Inside Diameter (Bore): 0.375 inches (9.525 mm)
• Width: 1.000 inch (25.4 mm)
• Belt Type Compatibility: Serpentine belts
• Groove Quantity: Smooth surface for optimal belt contact
• Mount Hole Quantity: Single mounting hole (hardware not included)
• Meets or exceeds OEM specifications
• Pulley Type: Back idler style tensioner pulley

Detailed Product Description

The Hayden Pulley 5987 is engineered as an idler and tensioner pulley for accessory drive belt systems, specifically designed to maintain proper tension on serpentine belts. Its smooth groove surface and precise dimensions—2.75 inches outside diameter and 0.375 inches bore diameter—ensure consistent belt alignment and reduce wear. The black plastic material offers a balance of durability and lightweight performance, suitable for the demanding conditions found in Mercedes-Benz vehicles such as the 260E, 300SD, and SL320. This pulley is part of the Hayden Pulley product line, which focuses on reliable and OEM-compliant pulley components for accessory drive systems.

Compatible Vehicles and Applications

This pulley is compatible with a range of Mercedes-Benz models, including but not limited to 190E, 260E, 300CE, 300E, 300SD, 300SE, 300SEL, 300SL, 300TE, C36 AMG, C280, E320, S320, S350, and SL320. It is designed to replace original equipment pulleys, meeting or exceeding OEM standards to ensure proper fit and function.

Common Issues Addressed by This Pulley

• Eliminates belt slippage caused by worn or damaged tensioner pulleys
• Prevents premature serpentine belt wear due to misalignment
• Reduces noise and vibration from accessory drive systems
• Restores proper belt tension for optimal engine accessory performance
• Helps avoid accessory drive system failures related to pulley degradation

Installation Notes and Tips

• Ensure the mounting surface is clean and free of debris before installation
• Verify the pulley bore diameter matches the mounting shaft (0.375 inches)
• Use appropriate torque specifications for mounting hardware (not included)
• Inspect the serpentine belt for wear and replace if necessary during installation
• Check belt alignment after installation to prevent premature wear

Quality Assurance and Warranty

The Hayden Pulley 5987 meets or exceeds OEM specifications for fit, form, and function. Manufactured with quality materials and precision engineering, this pulley is designed to provide reliable service in Mercedes-Benz accessory drive belt systems. While specific warranty details are not provided, Hayden products typically adhere to industry standards for durability and performance.