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.

These are sold INDIVIDUALLY. Price listed is for 1 (One) Plug.


  • 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

NGK 4656 R7438-9 Racing Spark Plug (Single) - VW/Audi MQB 1.8T/2.0T/2.5T

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$ 49.99
$ 49.99
Out of stock
SKU: NGK-R7438-9N/A


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NGK 4656 R7438-9 Racing Spark Plug (Single) - VW/Audi MQB 1.8T/2.0T/2.5T

$ 49.99