Champion 438 RC12ECC Copper Plus Spark Plug

The Champion 438 (RC12ECC) Copper Plus spark plug delivers dependable OE-replacement performance for automotive, marine, and power equipment applications. This proven spark plug design features a copper core center electrode that provides enhanced conductivity and precise heat control for consistent combustion and extended plug life.

Key Features:

• Copper core center electrode for increased conductivity and accurate heat range control
• Nickel alloy center and ground electrodes provide superior corrosion resistance and reliable wear characteristics
• Patented SAC-9 semiconductor resistor for complete, efficient combustion throughout the plug's lifespan
• Pre-gapped to 0.035 inches (0.9mm) for convenient installation
• Ultraseal-coated shell protects against damage and ensures reliable performance up to 20,000 miles
• Meets ISO and SAE standards for proven quality and compatibility

Specifications:

• Thread Size: 14mm (1.25mm pitch)
• Reach: 19mm (3/4 inch)
• Hex Size: 5/8 inch (16mm)
• Seat Type: Gasket (flat seat)
• Heat Range: 12
• Resistor: Yes (SAC9 type)
• Projected tip design for optimal ignition
• Torque Specs: Cast iron 26-30 lb-ft, Aluminum 18-22 lb-ft

Cross-Reference: Replaces NGK ZFR5N and various OEM applications.

Champion has been the trusted choice of engine manufacturers for over a century, with spark plugs engineered to meet the demanding requirements of automotive, lawn and garden, and marine engines. Whether you're maintaining your daily driver or servicing power equipment, the Champion 438 Copper Plus spark plug provides the reliable ignition performance you need.