Dayco was the first to develop the Raw Edge sidewall construction, which facilitates controlled slippage around pulleys. The Dayco Top Cog belt delivers more flexibility, and increases airflow around the belt, so it runs cooler and lasts longer than most competitive belts. Three plies of neoprene impregnated fabric resist heat, oil, and grease, and a specially-formulated treatment of the polyester cord provides the strength, stability, and reliability that are required of a national brand V-belt. Top Cog belts meet or exceed SAE J636 and J637 specifications.
Dayco belt size is determined by the part number. Example; 17340
