Dorman 419-380 Accessory Drive Belt Tensioner Assembly

Reliable Accessory Drive Belt Tensioner for Honda Civic

The Dorman 419-380 accessory drive belt tensioner assembly is engineered to maintain optimal serpentine belt tension for Honda Civic models. Constructed with durable aluminum and steel components, this tensioner ensures consistent performance and longevity in your vehicle's accessory drive system.

• Material: Aluminum tensioner body with steel pulley
• Length: 320 mm for precise fitment
• Color: Black and silver finish for corrosion resistance
• Inside Diameter: 17 mm
• Width: 27 mm and 30.5 mm dimensions for compatibility
• Outside Diameter: 70 mm pulley size
• Mounting Holes: 2 holes with diameters of 10.2 mm and 8.2 mm
• Belt Type: Designed for serpentine belts
• Pulleys: Single pulley with one bearing (40 mm diameter)
• Maximum Adjustment Range: 180 degrees rotation (both clockwise and counterclockwise)

Durable Design and Precise Fitment

The Dorman 419-380 tensioner assembly is specifically designed for Honda Civic vehicles, providing a direct replacement for the original equipment. Its aluminum construction offers a lightweight yet robust frame, while the steel pulley with a single bearing ensures smooth belt operation. The tensioner supports serpentine belt systems, maintaining proper tension to prevent slippage and premature belt wear. With two mounting holes and a maximum adjustment range of 180 degrees, installation and alignment are straightforward and reliable.

Compatible Applications and Common Issues Addressed

This accessory drive belt tensioner assembly is compatible with various Honda Civic models requiring part number 419-380. It is intended to resolve issues such as:

• Serpentine belt slipping or noise
• Loss of proper belt tension leading to accessory malfunction
• Wear or damage to the original tensioner pulley
• Vibration or misalignment in the belt drive system
• Failure of tensioner bearings causing belt degradation

Installation Notes and Tips

When installing the Dorman 419-380 tensioner, ensure the serpentine belt is properly routed according to the vehicle’s belt diagram. Use appropriate tools to release tension safely and align the tensioner with the mounting holes (10.2 mm and 8.2 mm diameters). Verify the tensioner rotates smoothly within its 180-degree adjustment range in both clockwise and counterclockwise directions. Double-check belt tension after installation to avoid premature wear.

Quality Assurance and Warranty

Dorman manufactures this accessory drive belt tensioner assembly to meet or exceed OEM specifications for Honda Civic vehicles. The use of aluminum and steel materials ensures durability and resistance to corrosion. This part is backed by Dorman’s standard warranty coverage, providing confidence in its performance and reliability for your vehicle’s accessory drive system.