Standard Ignition RU-11 Ballast Resistor

Ballast Resistor for Classic Ignition Systems

Standard Ignition RU-11 is a ballast resistor built for primary ignition circuits that need controlled current and stable coil operation. It features a heavy molded ceramic body for heat dissipation and a nichrome wire winding for durability in demanding underhood conditions.

Compatible With 1953-1973 Chrysler, Dodge, Chevrolet, and Pontiac applications, including Dodge Challenger, Dodge Dart, and Chevrolet Corvette fitments. Standard Ignition RU-11 is a direct-fit style solution for vehicles using a 2-terminal ballast resistor layout.

Key Features

• Heavy molded ceramic body for improved heat management
• Nichrome wire winding for consistent resistance and extended service life
• Operating resistance: 1.75 ohms
• Cold resistance: 0.5-0.6 ohms
• 2 terminals with male blade and eye ring terminal types
• Mounting bracket(s) included for installation support
• No connector design

Detailed Description

The Standard Ignition RU-11 ballast resistor is used in ignition systems that require resistance in the primary circuit to regulate coil current. Its ceramic construction helps dissipate heat, while the nichrome winding supports stable electrical performance over time. This part number, RU-11, is commonly selected for classic Chrysler, Dodge, Chevrolet, and Pontiac vehicles where the original resistor configuration calls for a 2-terminal setup.

This part cross-references Champion Spark Plug 322 for the same application. It also aligns with interchange references such as RU11T and RU19 for select applications.

What It Helps Address

• Ignition coil overheating from excessive primary current
• Hard starting caused by unstable resistor performance
• Intermittent spark output in older ignition systems
• Electrical resistance drift from heat-related wear
• Failure of original ballast resistor components in classic vehicles

Installation Notes and Tips

Verify the vehicle uses a 2-terminal ballast resistor before ordering. Match the terminal style and mounting location to the original part, and confirm resistance values against the service specification for your application. For fitment examples, this part fits 1994 Dodge Ram 1500, 1990-1993 Dodge D250, 1964-1969 Dodge Dart, 1957-1963 Chevrolet Corvette, and 1961-1962 Pontiac Bonneville.

Quality Assurance

Standard Ignition has served the automotive aftermarket since 1919 and maintains quality control from component selection through finished product. As an established manufacturer of original equipment ignition products, the brand applies controlled production standards to support consistent part performance.