The NGK Spark Plugs LFR6A Spark Plug, manufacturer part number 6668, is designed to provide dependable ignition performance and consistent engine operation. Built with a trivalent metal-plated shell, this spark plug offers strong resistance to corrosion and helps reduce seizing during service, supporting easier installation and removal.
A pure alumina silicate ceramic insulator provides high strength and efficient heat transfer, while the copper core helps remove heat from the firing end for reliable thermal performance. Triple seals help prevent leakage, and corrugated insulator ribs help reduce the risk of flashover. The NGK LFR6A 6668 is intended for applications requiring this specific spark plug model and heat range; verify vehicle or equipment fitment before installation.
Designed and manufactured by NGK Spark Plugs, this replacement spark plug delivers the quality and construction expected for routine maintenance and reliable ignition service. Vendor part number: 6668. Manufacturer part number: 6668.
Features:
- Fitment: Designed for applications requiring an NGK LFR6A spark plug; verify vehicle or equipment compatibility before installation
- Brand: NGK Spark Plugs
- Model: LFR6A
- Manufacturer Part Number: 6668
- Vendor Part Number: 6668
- Plating: Trivalent metal plating provides corrosion resistance and anti-seizing properties
- Insulator: Pure alumina silicate ceramic provides strength and efficient heat transfer
- Sealing: Triple seals help prevent leakage
- Flashover Protection: Corrugated ribs help reduce the risk of flashover
- Heat Control: Copper core supports heat removal from the firing end