
The Gates Micro‑V V‑ribbed belt is a heavy‑duty accessory belt for 2015–2021 Peterbilt 579 models with Paccar MX‑13 diesel engines, specified for fan drive service. Intended for demanding commercial use, this heavy‑duty V‑ribbed belt supports reliable cooling system operation and provides an upgraded replacement choice for fleet maintenance schedules.
Gates 15-21 Peterbilt 579 Paccar MX-13 Diesel Fan Heavy Duty V-Ribbed Belt