Description
Specially engineered Yttrium enhanced ground electrode provides 2X longer service life compared to standard Copper plugs.Fine wire Platinum firing pin for better ignitability.Unique 360 continuous laser weld fuses corrosion resistant Platinum firing pin to base.Nickel-plated rolled threads provide superior resistance to corrosion and do not require anti-seize for installation.Bosch Platinum spark plugs are pre-gapped at the factory and do not require a gap adjustment prior to installation