Description
A reliable spark plug is the foundation of consistent ignition timing and engine performance—whether you’re pushing for lap times or maintaining daily reliability. The CHAMPION RN12YC delivers precision heat range control through its copper core center electrode, ensuring optimal combustion across varying engine loads and conditions. This 24-pack bulk format makes it economical for active racers and mechanics who service multiple vehicles or keep spares on hand.
- Copper core center electrode
- Heat range optimization
- SAC-9 semi-conductor resistor
- Maximum EMI/RFI suppression
- Ultraseal™ coated shell
- Rust prevention technology
- 24-pack quantity
- MPN: 404S
- Standard automotive fitment
- Bolt-on installation
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