NGK Ruthenium HX Spark Plug Box of 4 (LFR6AHX-S)
Part Number 94122

Brand:
NGK Spark Plugs
Manufacturer's Part Number:
LFR6AHX-S
Part Type:
Spark Plugs
Product Line:
NGK Ruthenium HX Spark Plugs
Summit Racing Part Number:
NGK-94122
UPC:
00087295941225
Spark Plug Thread Size:
14mm
Spark Plug Reach (in.):
1.043 in.
Spark Plug Reach (mm):
26.50mm
Manufacturer Heat Range:
6
Shorty Spark Plug:
No
Resistor:
Yes
Electrode Tip Material:
Ruthenium
Electrode Core Material:
Copper
Center Electrode Type:
Projected
Spark Plug Seat Style:
Gasket
Wrench Diameter:
5/8 in.
Ground Strap Quantity:
One
Quantity:
Sold individually.
NGK Ruthenium HX Spark Plugs

NGK Ruthenium HX spark plugs are designed for newer engines which demand high ignitability. Double Fine Electrode (DFE) engineering promotes spark energy concentration and ignites a wider range of air/fuel ratios, offering improved performance in rich or lean engine conditions. Order the plugs recommended for fitment on your application.

Additional details:

* 0.4mm Ruthenium alloy fine-wire center electrode and 0.8mm platinum fine-wire ground electrode
* Trivalent metal platinum provides superior anti-corrosion and anti-seizing properties
* Corrugated ribs prevent flashover
* Pure alumina silicate ceramic insulator offers superior strength and better heat transfer
* Copper core aids in heat removal
THE LATEST INNOVATION IN PRECIOUS METAL SPARK PLUGS.
Modern engines demand more power while using less fuel, shortening the life of traditional iridium and platinum spark plugs. NGK’s patented ruthenium technology stands up better to wear to bring maximum durability and performance to your engine.

DESIGNED FOR EVERY ENGINE.
Ruthenium HX is available in two designs to best maximize the performance of your engine.

DFE (double fine electrode) maximizes ignitability, while reducing emissions for low-heat engines. This NGK-patented design is recommended for non-turbo applications.

PSPE® (projected square platinum electrode) provides the best ignitability and service life for high-heat engines. This NGK-patented design is recommended for turbo and supercharged engines.

HIGH IGNITABILITY FOR BETTER COLD STARTS.
Ruthenium HX provides more complete fuel burn than other precious metal spark plugs, resulting in quicker throttle response, smoother idle and better cold starts.

BETTER DURABILITY AT HIGH TEMPERATURES.
Ruthenium performs better at high temperatures in various driving conditions compared to the leading precious metal spark plugs.

PROVEN TO PERFORM.
Ruthenium HX spark plugs are manufactured in an ISO 11565-certified facility following the latest manufacturing processes and regulations. Before coming to market, all NGK spark plugs must pass extensive testing and quality checks, including acceleration, combustions, mechanical vibration and thermal shock tests.

MORE STABLE UNDER PRESSURE.
Standard combustion tests look for a spark plug’s ability to maintain stable performance during combustion and engine operation. When compared to conventional spark plugs, Ruthenium HX remains more stable with less dispersion.

  • Spark Plug Thread Size:
  • 14mm
  • Spark Plug Reach (in.):
  • 0.984 in.
  • Spark Plug Reach (mm):
  • 25mm
  • Manufacturer Heat Range:
  • 6
  • Shorty Spark Plug:
  • No
  • Resistor:
  • Yes
  • Electrode Tip Material:
  • Ruthenium
  • Electrode Core Material:
  • Copper
  • Center Electrode Type:
  • Projected
  • Spark Plug Seat Style:
  • Tapered
  • Wrench Diameter:
  • 5/8 in.
  • Ground Strap Quantity:
  • One