Champion 946 Spark Plug

Champion Copper Plus Spark Plug Overview

The Champion Copper Plus 946 spark plug is engineered for reliable ignition performance in Saab 900 vehicles. Designed with durable nickel and copper alloy components, this spark plug ensures consistent combustion and efficient engine operation.

• Ground electrode core made of nickel for durability
• Nickel center electrode tip for stable spark delivery
• Pre-set gap size of 0.030 inches (0.76 mm) for optimal ignition
• Flat seat type with a 0.75-inch reach for precise fitment
• Resistor type spark plug to reduce electrical interference
• Thread diameter of 14 mm (0.551 inches) with a 15.88 mm hex size
• Insulator height and projection of 0.06 inches for proper insulation
• Manufacturer heat range rating of 12 suitable for small engine applications

About the Champion Copper Plus Product Line

The Copper Plus line from Champion focuses on spark plugs that combine copper core technology with nickel alloy electrodes. This design supports efficient heat transfer and reliable ignition, making it suitable for small engine applications like the Saab 900. The Copper Plus spark plugs balance performance and durability, providing consistent spark quality over time.

Technical Details and Specifications

The Champion Copper Plus 946 spark plug features a single ground electrode made from a nickel copper alloy, enhancing wear resistance and conductivity. The center electrode tip is nickel, contributing to stable spark generation. With a pre-gap size of 0.030 inches (0.76 mm), this plug is ready for installation without additional adjustment. The flat seat design and 0.75-inch reach ensure proper sealing and fitment in the combustion chamber. The spark plug includes a non-removable nut electrical terminal and a resistor to minimize radio frequency interference. Its thread diameter measures 14 mm (0.551 inches), and the hex size is 15.88 mm (0.625 inches), compatible with standard spark plug sockets.

Compatible Vehicles and Applications

• Designed specifically for Saab 900 models
• Suitable for small engine ignition systems requiring a heat range of 12
• Ideal for secondary ignition system replacement
• Addresses ignition misfires and poor engine starting issues
• Helps maintain fuel efficiency and engine smoothness

Installation Notes and Tips

Before installation, verify the spark plug gap is set to 0.030 inches (0.76 mm) as specified. Use a 15.88 mm (5/8 inch) spark plug socket for proper torque application. Ensure the flat seat spark plug is threaded carefully to avoid cross-threading. Tighten to manufacturer torque specifications to maintain proper sealing and prevent damage. The non-removable nut terminal requires compatible ignition wire connectors.

Quality Assurance and Warranty

Champion Copper Plus spark plugs are manufactured to meet OEM standards for fit, form, and function. The use of nickel and copper alloy materials supports durability and consistent performance. While specific warranty details are not provided, Champion products typically adhere to industry quality controls and are backed by the brand's reputation for reliability.