Dorman 419-374 Accessory Drive Belt Tensioner Assembly

Reliable Accessory Drive Belt Tensioner for Ford Vehicles

The Dorman 419-374 accessory drive belt tensioner assembly is engineered to maintain optimal serpentine belt tension for select Ford models. Designed with durable aluminum and plastic components, this tensioner ensures consistent performance and longevity in your Ford Bronco, F-150, F-250, and Econoline series vehicles.

• Constructed from lightweight aluminum for strength and corrosion resistance
• Compatible with serpentine belt systems on Ford Bronco, F-150, F-250, E-150 Econoline, and E-250 Econoline
• Includes one pulley with a 40 mm bearing diameter made of durable plastic
• Features a maximum adjustment range of 75 mm for precise belt tensioning
• Single mounting hole with a 13 mm diameter for secure installation

Detailed Product Specifications

The Dorman 419-374 tensioner assembly measures 194 mm in length with a width of 27 mm, and an outside diameter of 90.2 mm. It features a single pulley with one bearing, rotating counterclockwise to maintain proper belt alignment and tension. The inside diameter of the tensioner is 17 mm, and it includes one mounting hole to simplify installation. The pulley is constructed from plastic, balancing durability and weight, while the tensioner body is made from aluminum to resist wear and corrosion over time.

Compatible Ford Models and Applications

This accessory drive belt tensioner assembly is compatible with multiple Ford vehicles, including the Bronco, F-150, F-250, E-150 Econoline, E-150 Econoline Club Wagon, and E-250 Econoline. It is specifically designed for serpentine belt systems, ensuring proper belt tension and smooth operation of engine accessories.

• Maintains correct serpentine belt tension to prevent slipping
• Reduces belt noise and vibration
• Prevents premature belt wear and damage
• Ensures reliable operation of alternator, power steering, and air conditioning components
• Helps avoid engine accessory failures related to belt tension issues

Installation Notes and Tips

When installing the Dorman 419-374 tensioner assembly, ensure the mounting hole aligns correctly with the vehicle’s bracket using the 13 mm diameter hole. The tensioner rotates counterclockwise, so verify belt routing matches the original configuration. It is recommended to inspect the serpentine belt for wear and replace it if necessary during installation. Proper torque specifications should be followed to secure the tensioner without causing damage.

Quality Assurance and Warranty

Dorman manufactures this accessory drive belt tensioner assembly to meet or exceed OEM standards for fit, form, and function. The aluminum construction and quality plastic pulley contribute to long service life. This part comes with a limited warranty covering defects in materials and workmanship, providing confidence in its durability and performance for your Ford Bronco, F-150, F-250, and Econoline vehicles.