Champion 946 Spark Plug

Champion Copper Plus 946 Spark Plug

Champion Copper Plus 946 is a spark plug built for dependable secondary ignition performance. It uses a copper core electrode for improved conductivity and heat control, with nickel center and ground electrode materials for steady wear characteristics.

This plug is a direct fit for select Saab applications, including 1986-1994 Saab 900 models with OE type requirements. The Champion Copper Plus line focuses on practical ignition performance for everyday driving and service replacement needs.

Key Features

• Copper core electrode for improved conductivity and heat management
• Nickel center electrode tip and nickel ground electrode core material
• Pre-gapped to 0.030 in. / 0.76 mm
• Resistor type spark plug for ignition system noise control
• Flat seat design with 14 mm thread diameter and 0.75 in. reach
• Hex size: 0.625 in. / 15.880 mm
• Champion Copper Plus Small Engine classification
• Part number 946 for identification and ordering

Detailed Description

Champion 946 is engineered as a copper core spark plug with a nickel-based electrode design to support consistent spark delivery and heat control. The 12 heat range, flat seat, and 0.75-inch reach make it a service-ready ignition component for applications that call for the QC12YC plug type. For buyers searching for a Champion 946 spark plug for Saab 900 ignition service, this part matches the listed OE-type fitment and specifications.

Compatible With 1986-1994 Saab 900, N/A. Fits 1986-1994 Saab 900, N/A. This part cross-references 691043 and QC12YC for the same application.

Common Issues It May Address

• Hard starting caused by worn or fouled spark plugs
• Rough idle from inconsistent ignition firing
• Misfire symptoms related to degraded plug electrodes
• Reduced throttle response from weak spark output
• Service replacement needs for OE-type Saab 900 ignition maintenance

Installation Notes and Tips

Verify the plug type, thread diameter, reach, and seat style before installation. The pre-gap is listed at 0.030 in. / 0.76 mm, but always confirm the required gap for the specific engine application before use. Inspect ignition wires, coil condition, and cylinder head threads during service to help ensure proper ignition performance.

Quality Assurance

Champion Copper Plus plugs are built around a copper core design for conductivity and heat control, with nickel electrode materials selected for dependable wear characteristics. Part number 946 is specified for the listed Saab 900 applications and QC12YC plug type requirements.