DAYCO ARAMID CORD POLY RIB SERPENTINE BELT - MAIN DRIVE 2015-2021 CHEVROLET SILVERADO 2500HD/3500HD 6.6L DURAMAX (SINGLE ALTERNATOR) | 2016-2021 GMC SIERRA 2500HD/3500HD 6.6L DURAMAX (SINGLE ALTERNATOR)

The Dayco A061197 Aramid Cord Poly Rib Serpentine Belt - Main Drive is engineered for higher output engines and tighter engine packaging. Manufacturers use serpentine belts with aramid tensile cord in applications that may have noise, vibration or harshness issues. The length stability of the Dayco Aramid Cord Poly Rib Serpentine Belt reduces span vibrations and tensioner movements while extending service life. Aramid fibers are heat-resistant synthetic fibers are so durable that they are even used in military applications for ballistic-rated body armor fabric and composites. The "W" profile ribbing on this belt has been engineered to conform to minor misalignments to help minimize belt noise.

FEATURES:

• Meets Or Exceeds OE Specifications
• Reduced Belt Noise
• Minimizes Tensioner Movements

Note: Only fits models with Single Alternator.