Dorman 419-212 Accessory Drive Belt Tensioner Assembly

Overview of Dorman Accessory Drive Belt Tensioner Assembly 419-212

The Dorman 419-212 accessory drive belt tensioner assembly is engineered for reliable performance in Ford, Mazda, and Mercury vehicles. Designed specifically for models like the Ford Escape, Mazda Tribute, and Mercury Cougar, this serpentine belt tensioner ensures proper belt tension and smooth operation of your vehicle's accessory drive system.

• Inside diameter: 17 mm
• Width: 28 mm
• Outside diameter: 73 mm
• Serpentine belt type compatibility
• Single pulley with 6 grooves
• One pulley bearing with 40 mm diameter
• Composite pulley material for durability
• Counterclockwise tensioner rotation

Detailed Product Description

The Dorman 419-212 accessory drive belt tensioner assembly features a composite pulley designed to reduce weight while maintaining strength and resistance to wear. The pulley includes six grooves to accommodate serpentine belts, ensuring consistent grip and alignment. With a 40 mm diameter bearing, the tensioner provides smooth rotation and reduces noise and vibration. The tensioner’s counterclockwise rotation is engineered to match the accessory drive system requirements of compatible Ford, Mazda, and Mercury models, including the Ford Focus and Mercury Mystique.

Compatible Vehicles and Applications

This tensioner assembly is compatible with a range of vehicles, including:

• Ford Contour
• Ford Escape
• Ford Focus
• Mazda Tribute
• Mercury Cougar
• Mercury Mystique

It is designed to maintain proper tension on serpentine belts, which drive critical components such as the alternator, power steering pump, and air conditioning compressor.

Common Issues Addressed by This Tensioner

• Eliminates belt slippage caused by worn or loose tensioners
• Prevents premature serpentine belt wear and damage
• Reduces noise from squealing or chirping belts
• Maintains consistent accessory drive system performance
• Helps avoid overheating or loss of power steering due to belt failure

Installation Notes and Tips

When installing the Dorman 419-212 tensioner assembly, ensure the serpentine belt is properly routed according to the vehicle’s belt diagram. Use appropriate tools to relieve tension on the old belt tensioner before removal. Verify the tensioner rotates counterclockwise as specified. Inspect the serpentine belt for wear and replace if necessary to ensure optimal performance. Proper torque specifications should be followed during installation to avoid damage.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards. The 419-212 tensioner assembly undergoes rigorous quality control to ensure durability and reliable operation. This part is backed by Dorman’s limited warranty, providing coverage against defects in material and workmanship for a specified period. Refer to Dorman’s warranty documentation for detailed terms and conditions.