About Dayco Gold Label Products

From Dayco themselves, "The Dayco Gold Label serpentine belt is a diesel grade belt that features higher performance construction over conventional light duty belts in order to meet the high torque and power pulses exerted by today's demanding diesel engines. The specially treated cords within the belt resist stretching and ensure the length stability that is essential for drive systems on high output diesel and gas engines. The belt’s heavy duty construction provides additional integrity without sacrificing flexibility or belt-to-pulley compatibility.

The Dayco Gold Label serpentine belt is also engineered with high-grade EPDM compounds and is built to resist the heat and harsh under hood environments experienced in over-the-road and off-road conditions."

Additionally, designed to replace idler and tensioner pulleys for serpentine drives in heavy duty diesel engine applications, Dayco's Gold Label Pulleys are manufactured from steel, powdered metal, or engineered polymer materials to resist wear under harsh environments.

Dayco's Automatic Belt Tensioners and Pulleys

Dayco is known for many innovation products for the aftermarket industry; but what makes them unique lays in their belt tensioners and idler-pulleys.

Benefits of Dayco No Slack® Idler/Tensioner Pulleys include:

• Built with smoother surfaces and tighter dimensional tolerances, which translates to less vibration and therefore longer pulley life
• Lifetime lubricated ball bearings
• Double high temperature seals to assure peak bearing performance
• Flat pulley that contains specially formulated glass-filled polymers to insure a high strength, cooler running, wear resistant "plastic" pulley
• Meets or exceeds OE quality

The Dayco NO SLACK® automatic belt tensioner features a flat spring design to provide less operating range vibrations. With this benefit, it helps reduce the risk of bearing failure due to high tension when a new belt is installed and comes with other special features including: Thermoplastic rubber spring slot plug (where applicable) helps keep out harmful contaminants; a rubber “O” ring which seals against dust and grime (where applicable); and Zinc-coated mounting bolt that resists rust (where applicable).

Dayco's NO SLACK® Automatic Belt Tensioners are specifically built to outperform and outlast competitive OE parts.  The heavy duty cast aluminum spring case resists cracking and fatigue. Each component is built to resist rust, endure the toughest of conditions while promoting quieter performance and longer life. Additionally, they are manufactured with a specially coated patented flat wire spring to allow the internal tension to be concentric, thus providing a more even degree of constant tension; Contain a metallic locator pin built to withstand extreme drive demands and properly locate the tensioner for installation; and offer a patented Deflected Arm Plate that dampens arm movement, prolonging the life of the tensioner by limiting the amount of rotational movement.