• Cart

Quick Ship
SKU #: DC-A061197 MPN #: A061197

Dayco Poly Rib HD Serpentine Belt Single Alternator 15-21 GM 6.6L Duramax LML/L5P

$50.27
Get 50 points in loyalty rewards
Description Overview
Keep 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 engine’s accessories while minimizing noise.Designed to maintain proper tension and resist wear, it's a reliable, heavy duty replacement that’s ready to handle the demands of your diesel rig.

Enter your zip and we'll see if installation is available.

  • Request quotes from local installers at checkout
  • Compare options and choose the best fit for your install

A Dayco Poly Rib HD Serpentine Belt built with EPDM rubber reinforced with aramid fibers for durable, heavy duty accessory drive performance.

Fits
2015-2021 GM 6.6L Duramax LML/L5P
Brand
Dayco
Best for
Heavy duty diesel accessory belt replacement
Key features
  • EPDM Rubber Compound
  • OE Style Replacement
  • Minimizes Pulley Noise
  • Solid Poly Rib Design
Important
Fits single alternator trucks only.
Keep 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 engine’s accessories while minimizing noise.

Designed to maintain proper tension and resist wear, it's a reliable, heavy duty replacement that’s ready to handle the demands of your diesel rig.
Vehicle Fitment
2015-2021 GM 6.6L Duramax LML/L5P
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
IMPORTANT NOTE:
  • Fits single alternator trucks only.
FEATURES & BENEFITS:
  • EPDM Rubber Compound
  • OE Style Replacement
  • Minimizes Pulley Noise
  • Solid Poly Rib Design
About Dayco
Dayco is a leading supplier to dozens of O.E. manufacturers and they're proud to utilize their expertise to develop and launch products for the aftermarket. From cars and trucks to snowmobiles and excavators, their quality belts, hoses, and related parts enhance vehicle performance and make installation faster and easier for today’s repair professionals.