Dorman 419-720 Accessory Drive Belt Idler Pulley - Grooved Pulley, Right or Upper

Overview of Dorman 419-720 Accessory Drive Belt Idler Pulley

The Dorman 419-720 accessory drive belt idler pulley is designed specifically for select Ford and Mercury models, including the Escape, Fusion, Mariner, and Milan. Engineered with durable steel construction and a serpentine belt compatibility, this idler pulley ensures reliable belt tension and smooth operation.

• Constructed from robust steel material for durability
• Black finish with a 72 mm outside diameter and 17 mm inside diameter
• Features 6 grooves compatible with serpentine belts
• Includes 3 mounting holes for secure installation
• Comes with 1 idler pulley and bracket; mounting hardware not included
• Specific fit for Ford Escape, Fusion, Mercury Mariner, and Milan models
• Part number 419-720 for precise identification

Detailed Product Description and Specifications

The Dorman 419-720 idler pulley is engineered to maintain proper tension on the accessory drive belt system in compatible vehicles. Its steel construction provides strength and resistance to wear, while the black coating offers corrosion protection. The pulley measures 72 mm in outside diameter and 17 mm inside diameter, with a width ranging between 22 mm and 25 mm, accommodating the serpentine belt's six grooves. The pulley bearing has a width of 12 mm and is designed for smooth rotation, reducing belt noise and wear. This specific fit part is intended for use on Ford Escape, Fusion, and Mercury Mariner and Milan models, ensuring compatibility and optimal performance.

Common Applications and Problem Resolution

• Restores proper belt tension to prevent slipping or squealing
• Replaces worn or damaged idler pulleys causing belt misalignment
• Eliminates noise caused by faulty pulley bearings
• Prevents premature belt wear due to pulley surface damage
• Supports accessory drive system functionality for engine components

Installation Notes and Tips

Installation of the Dorman 419-720 idler pulley requires removal of the serpentine belt and old pulley assembly. Ensure the mounting surface is clean and free of debris before attaching the new pulley bracket. Note that mounting hardware is not included, so original bolts should be reused or sourced separately. Proper torque specifications should be followed to avoid over-tightening. After installation, verify belt alignment and tension to ensure smooth operation.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 419-720 idler pulley undergoes rigorous quality control to ensure durability and reliable performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Refer to Dorman’s official warranty policy for complete terms.