Denso

3421

Denso (3421) SK20HR11 Iridium Long Life Spark Plug, Single Plug

EAN: 0042511342149

UPC: 042511342149

Spark Plugs & Wires

Single Plug
Denso # 3421
Extra Long Life Iridium Plug
0.7mm Fine Wire Iridium-Tipped Center Electrode
Platinum Tipped Ground Electrode

Iridium plugs have an extremely long life as Iridium is 6x harder and 8x stronger than platinum. Because of the strength and hardness of iridium, there is virtually no electrode wear. This combined with a platinum tipped ground electrode, creates a spark plug that is almost impervious to wear even under extreme driving or racing conditions.

Permatex 81343 Anti-Seize Lubricant, 1 oz. Tube