Ballast Resistor 1.82 Ohms

The Ballast Resistor 1.82 Ohms (MOROSO MPN 72390) is a precision ignition component designed for classic and vintage ignition systems. This ballast resistor is essential for enthusiasts restoring muscle cars, hot rods, and classic vehicles, as it helps maintain factory-correct ignition characteristics and reliable starting performance.

With a resistance rating of 1.82 ohms, this resistor effectively regulates voltage to the ignition coil during engine operation while allowing full voltage at startup. Its stepped-resistance design protects distributor points from excessive current draw and heat buildup, which can lead to premature erosion and pitting. The durable ceramic core construction ensures it can withstand underhood temperatures and vibrations while maintaining consistent electrical values.

Technicians and restoration specialists prefer MOROSO ballast resistors for their accuracy and reliability in points-based ignition systems common to vehicles built through the 1980s. Installation is straightforward, typically mounted near the coil or firewall in the original factory location. Whether you're rebuilding a distributor-equipped engine or maintaining a classic-car collection, this 1.82-ohm resistor is a dependable choice.