Dayco Poly Rib HD Serpentine Belt Single Alternator 15-21 GM 6.6L Duramax LML/L5P BAN-49779 have the advantage of controlling

have the advantage of controlling even the slightest steering movements to reduce steering wheel shake

This metal turbo intake horn increases airflow for better performance and can help with improved fuel economy

provisions for an optional secondary heater

IMPORTANT NOTE: Price listed is PER freeze plug

Dayco Poly Rib HD Serpentine Belt Single Alternator 15-21 GM 6.6L Duramax LML/L5P BAN-49779 have the advantage of controllingKeep your 2015 2021 GM 6. 6L Duramax with single alternator running strong with the Dayco Poly Rib HD Serpentine Belt. Built with a rugged EPDM rubber compound reinforced with aramid fibers, this belt delivers excellent durability, heat resistance, and long life. The poly rib design ensures a secure grip and smooth performance across all your engines accessories while minimizing noise. Designed to maintain proper tension and resist wear, it's a