Kit Masters’ 8009X is a direct replacement/upgrade for Mack® applications of the HT650® / HT550® fan clutches. The superior design of the 8009X makes for easier and more affordable long-term maintenance. Converting your fan clutch upgrades it from a medium duty fan clutch to a heavy duty fan clutch. Our model is capable of handling a larger fan and will last longer than the competition.
Mack / Unspecified
991451, 40MH410, 991439, 991435, 991428, 40mh48, 981442, 981446, 25171842, 40MH410A, 991443, 981438,