Original DeWalt motor cooling fan — part 860444-00. Compact cooling impeller with an outer diameter of approximately 106 mm and a shaft bore of about 15 mm (D 106 × d 15), designed to mount on the motor shaft and force air across the armature for reliable motor cooling.

This is the genuine DeWalt replacement fan used as the motor cooling blade on a number of DeWalt saws and similar tools. Example models that show part 860444-00 this parts lists include DW250, DW710, DW720, DW3501, DW876, DW1251 and DW320 — a useful fitment for many mitre, band and radial-arm saw motor assemblies.

Quick to swap: the fan installs onto the motor shaft (15 mm bore), sits behind the fan cover and works with the existing rotor / shaft assembly to restore proper cooling and prevent overheating. Designed as the original DeWalt replacement for the listed models, it’s the right choice when the motor cooling impeller is cracked, worn or missing.