2001 Acura MDX Belt Tensioner Assemblies

The Dayco automatic belt tensioner features Dayco’s original, patented flat spring design to provide less operating range variation. It reduces the risk of premature accessory bearing failure due to high tension and lessens the risk of belt noise and slip

Product Features:

• Endures the toughest conditions while promoting quieter performance and longer life
• Features a steel pivot tube on specific designs for enhanced stability
• Built to outperform and outlast competitive OE parts
• This tensioner is another Dayco product proudly made in the USA

Litens Automotive is the original equipment supplier of this tensioner for this Honda application. The Litens replacement part meets all form, fit, and performance characteristics of the original equipment part (with the exception of not having the car manufacturer’s logo or part number applied to the part). The Litens replacement part maintains the round wire spring, enhanced damping level, and the heavy duty steel pulley specified by the O.E. manufacturer. Note: Honda issued TSB 03-052 (Technical Service Bulletin) on the original tensioner (999505a) for noise issues when used on Acura MDX and Honda Pilot. The TSB resulted in this variant (999537a) which has the higher tension rate and the improved damping recommended by Honda /Acura . Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket.

Dayco’s Automatic Belt Tensioner features a patented “flat spring” design that’s engineered to provide less operating range variations in tension. This reduces the risk of premature accessory bearing failure due to high tension when a new belt is installed. It also lessens the risk of belt squeal and slippage, or poor accessory performance caused by low tension after the belt begins to stretch and wear. A Teflon strip wound within the spring resists abrasion. The flat spring itself is coated to resist rust.

Product Features:

• Heavy-duty cast aluminum spring case resists cracking and fatigue
• Steel locator pin and pivot tube (where the application demands)
• Heavy-duty cast aluminum arm offers additional strength and less distortion
• Thermoplastic rubber “spring slot plug” keeps out harmful contaminants
• Zinc coated mounting bolt (where included) resists rust, and is concentric for a more even degree of constant tension