Best Copper Electrode Tube

Autolite 4265-4PK Copper Resistor Spark Plug, 4 Pack

Copper-glass seal bonds insulator, terminal post, and center electrode together to provide a tight seal that is 100 percent leak-proof.
Cold-formed steel shell and precision rolled threads, with one-piece terminal post to add strength.
Multi-rib insulator reduces danger of "flash-over".
Resistor reduces radio frequency interference (RFI) and electrode erosion.
Full copper core electrode provides better performance in all conditions.

Copper-glass seal bonds insulator, terminal post, and center electrode together to provide a tight seal that is 100 percent leak-proof.
Cold-formed steel shell and precision rolled threads, with one-piece terminal post to add strength.
Multi-rib insulator reduces danger of "flash-over.
Resistor reduces radio frequency interference RFI and electrode erosion.
Full copper core electrode provides better performance in all conditions.

Copper-glass seal bonds insulator, terminal post, and center electrode together to provide a tight seal that is 100 percent leak-proof.
Cold-formed steel shell and precision rolled threads, with one-piece terminal post to add strength.
Multi-rib insulator reduces danger of "flash-over".
Resistor reduces radio frequency interference (RFI) and electrode erosion.
Full copper core electrode provides better performance in all conditions.

Copper-glass seal bonds insulator, terminal post, and center electrode together to provide a tight seal that is 100 percent leak-proof.
Cold-formed steel shell and precision rolled threads, with one-piece terminal post to add strength.
Multi-rib insulator reduces danger of "flash-over".
Resistor reduces radio frequency interference (RFI) and electrode erosion.
Full copper core electrode provides better performance in all conditions.

Copper-glass seal bonds insulator, terminal post, and center electrode together to provide a tight seal that is 100 percent leak-proof.
Cold-formed steel shell and precision rolled threads, with one-piece terminal post to add strength.
Multi-rib insulator reduces danger of "flash-over".
Resistor reduces radio frequency interference (RFI) and electrode erosion.
Full copper core electrode provides better performance in all conditions.

Copper Plus - Dependable Performance and Durability.
Copper core center electrode allows for accurate control of heat range for longer life.
Champion copper plus small engine plugs resist fouling and provide superior corrosion resistance.
Champion copper plus small engine spark plugs feature a copper core electrode that provides increased conductivity and heat control while delivering good overall wear characteristics.
Champion copper plus small engine spark plugs are built by a world leader in small engine spark plugs to deliver proven performance.

copper-glass seal bonds insulator, terminal post, and center electrode together to provide a tight seal that is 100 percent leak-proof.
cold-formed steel shell and precision rolled threads, with one-piece terminal post to add strength.
"multi-rib insulator reduces danger of ""flash-over""".
resistor reduces radio frequency interference (rfi) and electrode erosion.
full copper core electrode provides better performance in all conditions.

Copper-glass seal bonds insulator, terminal post, and center electrode together to provide a tight seal that is 100 percent leak-proof.
Cold-formed steel shell and precision rolled threads, with one-piece terminal post to add strength.
Multi-rib insulator reduces danger of "flash-over".
Resistor reduces radio frequency interference (RFI) and electrode erosion.
Full copper core electrode provides better performance in all conditions.

Copper-glass seal bonds insulator, terminal post, and center electrode together to provide a tight seal that is 100 percent leak-proof.
Cold-formed steel shell and precision rolled threads, with one-piece terminal post to add strength.
Multi-rib insulator reduces danger of "flash-over".
Resistor reduces radio frequency interference (RFI) and electrode erosion.
Full copper core electrode provides better performance in all conditions.