Product Description
NGK Iridium Racing Spark Plug - Box of 4 (R7438-9)
*These are a two step colder plug upgrade for many 2.0T MQB vehicles with hybrid turbochargers - Must have appropriate tuning*
NGK Racing Series plugs are engineered to withstand the harshest engine conditions. Fine wire iridium tipped center electrode and platinum tipped ground electrode improve ignitability, increase durability and enhance anti fouling capabilities. Special insulator nose configurations improve throttle response. 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.
PRODUCT SPECIFICATIONS
Shell
Thread Diameter: 14mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Reach: 26.5mm (1.04")
Hex Size: 5/8" (16mm)
Terminal Type: Solid
Overall Height: ISO
Gap: .028" (0.7mm)
Center Electrode
Material: Iridium
Type: Fine Wire
Size: 1.0mm
Projection: Non-Projected
Ground Electrode
Material: Platinum
Type: Slant
Quantity: 1
Specifications
Resistor: Yes
Resistor Value: 5k Ohm
Heat Range: 9
Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.
Part Information
Brand: NGK/NTK
Warranty: 60 Days
