Moroso 72390 - Moroso Ballast Resistor

Absolutely required for points-triggered ignitions equipped with coils that do not feature a built-in resistor. Ceramic base supports resistor to eliminate the possibility of electrical shorts and to dissipate heat. Includes built-in mounting boss; must be mounted to firewall or other metallic surface to further dissipate heat. 1/4" spade terminals facilitate wiring to battery side of the coil.