Champion 592 Spark Plug

Champion Copper Plus 592 Spark Plug

Champion Copper Plus 592 is a resistor spark plug built for dependable ignition performance in a wide range of classic Chevrolet, Chrysler, Pontiac, Buick, and Oldsmobile applications. Its copper core electrode improves conductivity and heat control, while nickel electrode materials support steady wear characteristics for everyday engine operation.

Key Features

• Copper core electrode for improved conductivity and heat management
• Nickel center electrode tip and nickel ground electrode materials
• Resistor type spark plug for ignition system noise control
• Pre-gapped at 0.030 in. with a flat seat design
• RJ12C plug type with 14 mm thread diameter and 0.375 in. reach
• Hex size 0.813 in. for standard service tool fitment

Product Line Details

The Champion Copper Plus line focuses on practical ignition performance with a copper core design that helps maintain conductivity and heat control. For owners servicing older Chevrolet Bel Air, Impala, Corvette, El Camino, Chrysler Newport, Town & Country, and similar vehicles, this line provides a straightforward spark plug option built around consistent operation and durable electrode construction.

Detailed Description

Champion 592 is a Copper Plus spark plug engineered around a copper core center electrode and nickel-based electrode materials. The resistor design, flat seat, and RJ12C configuration make it a direct-service choice for many vintage passenger cars and small-engine applications that call for this plug style. This part number is commonly searched as Champion 592 spark plug and RJ12C spark plug 592 for classic Chevrolet and Chrysler tune-ups.

Fits 1964-1966 Chevrolet El Camino, N/A. Fits 1962 Chevrolet Bel Air, N/A. Fits 1957-1959 Chevrolet Bel Air, N/A. Fits 1950-1952 Chevrolet Bel Air, N/A. Fits 1962 Chevrolet Impala, N/A. Fits 1959 Chevrolet Impala, N/A. Fits 1958-1960 Chevrolet Corvette, N/A. Fits 1950-1954 Chrysler Newport, N/A. Fits 1946-1954 Chrysler Town & Country, N/A. Fits 1950-1954 Pontiac Catalina, N/A. Fits 1950-1952 Buick Roadmaster, N/A. Fits 1949-1950 Chrysler Imperial, N/A. Fits 1946-1950 Chrysler New Yorker, N/A. Fits 1950 Oldsmobile 88, N/A. Fits 1950 Oldsmobile 98, N/A. Fits 1939-1942 Chrysler New Yorker, N/A. Fits 1941-1942 Chrysler Town & Country, N/A. Fits 1937-1939 Chrysler Imperial, N/A.

This part cross-references Autolite 308 and Champion Spark Plug 306 for the same application.

Common Uses

• Hard starting caused by worn or fouled spark plugs
• Misfire complaints during idle or acceleration
• Weak spark output from aged ignition components
• Rough running in classic Chevrolet, Chrysler, Pontiac, Buick, and Oldsmobile engines
• Routine ignition service on vehicles calling for RJ12C plug type

Installation Notes and Tips

Verify the required plug type, thread diameter, reach, seat style, and heat range before installation. The pre-gap is listed at 0.030 in., but always confirm the engine specification for your exact application, especially on older Chevrolet Bel Air, Impala, Corvette, and Chrysler Town & Country models. Use the correct spark plug socket for the 0.813 in. hex and inspect the ignition wires and distributor components during service.

Quality Assurance

Champion builds this Copper Plus spark plug with a copper core electrode and nickel electrode materials to support conductivity, heat control, and consistent wear characteristics. Part number 592 is specified for multiple classic vehicle applications and follows the RJ12C configuration used across many vintage ignition service requirements.