Dorman 419-038 Accessory Drive Belt Tensioner Assembly - Alternator and Air Conditioning

Reliable Accessory Drive Belt Tensioner for Nissan Vehicles

The Dorman 419-038 accessory drive belt tensioner assembly is designed to maintain optimal tension on the V-belt system in select Nissan models. Engineered for durability and precise fitment, this tensioner supports smooth operation of your vehicle's accessory drive components.

• Compatible with Nissan Altima, Maxima, and Quest models
• Features a single polyamide 6.6 pulley reinforced with 30% glass fiber
• Counterclockwise rotation tensioner for proper belt alignment
• Includes one pulley with a 37 mm bearing diameter for reliable performance
• Designed for V-belt systems with an 84 mm outside diameter and 12 mm inside diameter
• Width of 25 mm ensures proper belt engagement and tension

Technical Specifications and Design Details

The Dorman 419-038 tensioner assembly is built with a polyamide 6.6 pulley material enhanced by 30% glass fiber fill, providing strength and resistance to wear. The pulley has a 37 mm bearing diameter and contains a single bearing to support smooth rotation. This assembly is designed for V-belt systems, featuring an 84 mm outside diameter and 12 mm inside diameter, with a width of 25 mm. The tensioner rotates counterclockwise, ensuring correct belt tension and alignment for Nissan Altima, Maxima, and Quest models.

Applications and Common Issues Addressed

• Maintains proper tension on accessory drive belts to prevent slippage
• Reduces belt noise caused by improper tension or misalignment
• Prevents premature wear of belts and pulleys in Nissan Altima, Maxima, and Quest vehicles
• Supports smooth operation of alternator, power steering, and air conditioning components
• Helps avoid engine overheating due to accessory belt failure

Installation Notes and Tips

When installing the Dorman 419-038 tensioner assembly, ensure the belt type matches the V-belt specifications. Verify the tensioner rotation is counterclockwise to align with the vehicle’s accessory drive system. Inspect the belt and pulleys for wear before installation to maximize component lifespan. Proper torque specifications should be followed to secure the tensioner assembly without causing damage.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 419-038 accessory drive belt tensioner assembly undergoes rigorous quality control to ensure durability and reliable performance in Nissan Altima, Maxima, and Quest models. Warranty coverage details can be obtained from the product documentation or manufacturer.