SILZKBR8D8S Spark Plug NGK Spark Plug - 97506
Normally around $68.95
Upgraded 2 steps colder spark plugs for N54 and N20 and 1 step colder for N55 and S55 BMW engines
With the smallest tip diameter available, OE Iridium spark plugs provide superior ignitability and long service life. The iridium/platinum surfaces ensure a slow wear rate, providing stable idle and superior anti-fouling.
Laser-welded iridium centre electrode tip
Platinum disc welded to backside of ground electrode provides long life
Faster starts and quicker acceleration
Better fuel economy and lower emissions
Best OEM Iridium spark plug available
M135 M235 335 435 M2 M3 M4
NGK Laser Iridium spark plugs provide superior ignitability and long service life.
Fine wire iridium tipped center electrode and fine wire platinum tipped ground electrode ensures slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions.
Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
Corrugated ribs prevent flashover
Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer
Copper core aids in heat removal
Triple seals prevent leakage
Thread Size: 12mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Reach: 26.5mm (1.04")
Hex Size: 14mm Bi-Hex
Terminal Type: Solid
Overall Height: ISO
Gap: .031" (0.8mm)
Type: Fine Wire
Projection: Extended Projection
Shape: Taper Cut
Torque Specs: Cast Iron: 10.8-18 lb. ft. Aluminum: 10.8-14.5 lb. ft.
Heat Range: 8
Features: Special Gasket
SILZKBR8 D 8 S