Champion 302 Spark Plug

Reliable Ignition Performance for Select Audi and Chevrolet Models

The Champion Copper Plus 302 spark plug is engineered to deliver consistent ignition performance for vehicles such as the Audi 4000 and Chevrolet Bel Air. Designed with durable nickel and nickel-copper alloy components, this spark plug supports efficient combustion and reliable engine operation.

• Ground electrode core and center electrode tip made of nickel for durability
• Pre-gap size of 0.032 inches (0.82 mm) optimized for ignition efficiency
• Flat seat type with a 0.75-inch reach and 14 mm thread diameter
• Non-resistor type spark plug with removable nut electrical terminal
• Hex size of 0.813 inches (20.65 mm) for standard installation tools

Detailed Specifications and Design Features

The Champion Copper Plus 302 spark plug features a single ground electrode constructed from a nickel-copper alloy, providing a balance of conductivity and wear resistance. The center electrode tip is also nickel, ensuring stable spark generation. With a manufacturer heat range of 11, this plug is suitable for moderate to high operating temperatures. The flat seat design and 0.75-inch reach ensure proper fitment in compatible engines, including models like the Jaguar XJ6 and Mercedes-Benz 500SEL. The insulator height and projection are both 0.06 inches, contributing to reliable insulation and spark gap stability. This spark plug does not include a resistor, which may be preferred in certain ignition systems.

About the Champion Copper Plus Product Line

The Copper Plus line from Champion focuses on delivering dependable ignition components with copper core electrodes for improved conductivity. This product line is designed to meet OEM specifications for a range of vehicles, providing consistent spark and combustion efficiency. The Copper Plus 302 spark plug maintains these standards with its nickel and copper alloy materials, making it suitable for various European and American car models.

Common Applications and Problem Solving

• Restores proper ignition in Audi 420SEL and Volkswagen Jetta engines
• Addresses misfires and rough idling in Chevrolet Malibu and Corvette
• Improves cold start performance in Jaguar XJ6 and Mercedes-Benz 500SEC
• Helps reduce fouling and electrode wear in Rabbit Convertible and Rabbit Pickup
• Supports consistent engine power and fuel efficiency across compatible models

Installation Notes and Tips

When installing the Champion Copper Plus 302 spark plug, ensure the pre-gap size of 0.032 inches is maintained for optimal performance. Use a 0.813-inch (20.65 mm) socket or wrench for proper torque application. The flat seat design requires careful seating to avoid cross-threading. The removable nut electrical terminal allows for flexible connection options. Always consult the vehicle’s service manual for specific torque specifications and installation procedures.

Quality Assurance and Warranty

Champion spark plugs, including the Copper Plus 302, are manufactured to meet strict quality standards. The use of nickel and copper alloy materials ensures durability and consistent performance. While specific warranty details are not provided here, Champion products typically come with manufacturer-backed quality assurance to support reliable ignition system operation.