NGK (PFR7S8EG) Spark Plug 721227625950 Concave bottoms flatten during heating

Concave bottoms flatten during heating for even heat distribution

Engineered with 60% more silicon than comparable competitive replacements

Brand Wolo Model 836 Size n/a

Fits 3/4"-36 Spline X 1"-48 Spline

NGK (PFR7S8EG) Spark Plug 721227625950 Concave bottoms flatten during heatingBrand NGK Model PFR7S8EG Size Laser Platinum (1 Pack) Laser platinum spark plugs provide high ignitability and longer service life Dual platinum surfaces ensure slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions Laser welded platinum center electrode tip creates faster starts and quicker acceleration while the platinum disc welded to backside of ground electrode provides long life Trivalent metal