NGK Ruthenium HX Spark Plugs

NGK spark plugs and DENSO spark plugs, plus those from Autolite, Bosch, and Champion, help maximize engine power and operating performance ride after ride. We carry thousands of spark plugs for everything from Chevy to Ford, Volkswagen to Toyota, all with a 100% fitment guarantee. Browse popular spark plugs including NGK Iridium, NGK Racing, NGK G-Power, and many more replacement spark plugs. Our top-grade Spark Plugs are the key to igniting your ride. Ensure they’re well protected in the Cylinder Head and properly connected via the Coil Boots when replacing them.

NGK spark plugs and DENSO spark plugs, plus those from Autolite, Bosch, and Champion, help maximize engine power and operating performance ride after ride. We carry thousands of spark plugs for everything from Chevy to Ford, Volkswagen to Toyota, all with a 100% fitment guarantee. Browse popular spark plugs including NGK Iridium, NGK Racing, NGK G-Power, and many more replacement spark plugs. Ensure they’re well protected in the Cylinder Head and properly connected via the Coil Boots when replacing them.

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  1. NGK Spark Plug
    6 pc NGK Ruthenium HX Spark Plugs for 2006 Lincoln Zephyr 3.0L V6
    Special Price $70.88 Regular Price $100.99
  2. NGK Spark Plug
    6 pc NGK Ruthenium HX Spark Plugs for 2006-2012 Ford Fusion 3.0L V6
    Special Price $70.88 Regular Price $100.99
  3. NGK Spark Plug
    6 pc NGK Ruthenium HX Spark Plugs for 2000-2005 Lincoln LS 3.0L V6
    Special Price $70.88 Regular Price $100.99
  4. NGK Spark Plug
    6 pc NGK Ruthenium HX Spark Plugs for 2001-2012 Ford Escape 3.0L V6
    Special Price $70.88 Regular Price $100.99
  5. NGK Spark Plug
    6 pc NGK Ruthenium HX Spark Plugs for 1997-1998 GMC K1500 4.3L V6
    Special Price $70.88 Regular Price $100.99
  6. NGK Spark Plug
    6 pc NGK Ruthenium HX Spark Plugs for 1997-1999 GMC P3500 4.3L V6
    Special Price $70.88 Regular Price $100.99
  7. NGK Spark Plug
    6 pc NGK Ruthenium HX Spark Plugs for 1996-2004 GMC Sonoma 4.3L V6
    Special Price $70.88 Regular Price $100.99
  8. NGK Spark Plug
    6 pc NGK Ruthenium HX Spark Plugs for 2003-2008 Mazda 6 3.0L V6
    Special Price $70.88 Regular Price $100.99
  9. NGK Spark Plug
    6 pc NGK Ruthenium HX Spark Plugs for 2009-2010 Infiniti M35 3.5L V6
    Special Price $71.10 Regular Price $101.99
  10. NGK Spark Plug
    6 pc NGK Ruthenium HX Spark Plugs for 2001-2005 BMW 325i 2.5L L6
    Special Price $71.32 Regular Price $101.99
  11. NGK Spark Plug
    6 pc NGK Ruthenium HX Spark Plugs for 2001-2006 BMW 330Ci 3.0L L6
    Special Price $71.32 Regular Price $101.99
  12. NGK Spark Plug
    6 pc NGK Ruthenium HX Spark Plugs for 2001-2005 BMW 530i 3.0L L6
    Special Price $71.32 Regular Price $101.99
  13. NGK Spark Plug
    6 pc NGK Ruthenium HX Spark Plugs for 1999-2001 Volvo S80 2.9L L6
    Special Price $71.32 Regular Price $101.99
  14. NGK Spark Plug
    6 pc NGK Ruthenium HX Spark Plugs for 1997 Volvo 960 2.9L L6
    Special Price $71.32 Regular Price $101.99
  15. NGK Spark Plug
    6 pc NGK Ruthenium HX Spark Plugs for 1997-1998 Volvo V90 2.9L L6
    Special Price $71.32 Regular Price $101.99
  16. NGK Spark Plug
    6 pc NGK Ruthenium HX Spark Plugs for 1998-2000 BMW 323i 2.5L L6
    Special Price $71.32 Regular Price $101.99
  17. NGK Spark Plug
    6 pc NGK Ruthenium HX Spark Plugs for 1998-1999 BMW 323is 2.5L L6
    Special Price $71.32 Regular Price $101.99
  18. NGK Spark Plug
    6 pc NGK Ruthenium HX Spark Plugs for 2001-2005 BMW 325xi 2.5L L6
    Special Price $71.32 Regular Price $101.99
  19. NGK Spark Plug
    6 pc NGK Ruthenium HX Spark Plugs for 2001-2005 BMW 525i 2.5L L6
    Special Price $71.32 Regular Price $101.99
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Whether you are looking for a long-lasting performance spark plug, or one for everyday use, Sixity has the NGK, DENSO, and Champion spark plugs you need, at prices you will not find anywhere else.

Spark Plug Features

  • Precision ceramic insulators
  • Corrosion-resistant shell with triple high pressure gas seals
  • Screw or snap-on electrical connectors
  • Pre-installed metal compression gaskets
  • Copper-core electrode cooling
  • Application specific heat-range design
  • Improved cold-starting performance
  • Smooth firing at high or low engine RPM
  • Reduced electrode erosion and long service life
  • Enhanced ignition efficiency and fuel economy
  • Superior anti-fouling characteristics
  • Reduced hot-spark firing voltage requirements
  • Maximum engine horsepower and torque
  • Superior throttle-response, acceleration and WOT performance
  • Precision Laser-welded Iridium electrodes - 6X harder than platinum
  • Precision ceramic insulators
  • Corrosion-resistant shell with triple high pressure gas seals
  • Screw or snap-on electrical connectors
  • Pre-installed metal compression gaskets
  • Copper-core electrode cooling
  • Application specific heat-range design
  • Improved cold-starting performance
  • Smooth firing at high or low engine RPM
  • Reduced electrode erosion and long service life
  • Enhanced ignition efficiency and fuel economy
  • Superior anti-fouling characteristics
  • Reduced hot-spark firing voltage requirements
  • Maximum engine horsepower and torque
  • Superior throttle-response, acceleration and WOT performance
  • Precision Laser-welded Iridium electrodes - 6X harder than platinum
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