Dorman 419-520 Accessory Drive Belt Idler Pulley for Ford/Lincoln

The Dorman 419-520 accessory drive belt idler pulley is a direct-fit replacement component engineered to restore proper serpentine belt operation on select Ford and Lincoln vehicles. This idler pulley maintains correct belt tension and alignment, ensuring reliable performance of critical engine accessories including the alternator, water pump, power steering pump, and air conditioning compressor.

Key Features:

• Direct replacement design matches the fit and function of original equipment on specified vehicles
• High-quality double-sealed bearing resists contamination from dirt, debris, and moisture
• Eliminates squealing, groaning, or grinding noise caused by worn or failed idler pulleys
• Application-specific engineering reverse-engineered from original design specifications
• Durable steel construction withstands heat, shock, and corrosion for long-lasting reliability
• Backed by Dorman's team of engineers and quality specialists

This replacement idler pulley is designed to properly route the serpentine belt for correct alignment with the accessory drive system, keeping your vehicle's charging, cooling, and power steering systems operating as intended. Replaces Ford OE part numbers 36877, GB5Z6006A, and KX6Z8678A.