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94567 Ruthenium HX Series Spark Plug, Sold individually

Manufacturer #94567
( Reviews)
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1.25 mm Thread Pitch; 16 mm Hex Size; 0.6 mm Projected Fine Wire Ruthenium Center Electrode; 5000 Ohms Resistance; (1) Fine Wire Platinum Ground Electrode; Tapered Seat Type; Solid Terminal Type
Ruthenium HX Series
Electrode Tip Material:
Ruthenium Electrode Tip
Quantity Sold:
Sold individually
60-day NGK limited warranty
Anticipated Ship Out Time:
1-2 Business Days
Electrode Core Material:
Copper Electrode Core
Gap Size:
0.04 in.
Heat Range:
18 mm Reach
Thread Size:
14 mm thread size

Vehicle Fitment Information

Vehicle Name
Fitment Information
1996-2000 Chevrolet C3500HD
8 Cyl 7.4L
Gap 0.060 in.
1996-2000 GMC C3500HD
8 Cyl 7.4L
Gap 0.060 in.
1996-2005 GMC Jimmy
6 Cyl 4.3L
Gap 0.060 in.
1996-2001 GMC Jimmy
6 Cyl 4.3L
Gap 0.060 in.
1997 Buick Skylark
4 Cyl 2.4L
Gap 0.060in
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Product Information


Constructed with the most advanced technology, NGK Ruthenium HX spark plug delivers high-ignitibility, better efficiency and superior power to maximize the performance of your engine. It withstands high temperatures in various driving conditions and provides more complete fuel burn than other metal spark plugs.

  • Offers superior corrosion resistance
  • Features improved blistering/anti-peeling
  • Patented ruthenium technology allows maximum durability and performance
  • Available in DFE (double fine electrode) or PSPE (projected square platinum electrode) tip design
  • Manufactured in high-class facility that meets stringent ISO standards
  • Guaranteed stable during combustion and engine operation

NGK Spark Plugs is a worldwide leader of innovative, world-class quality spark plugs and oxygen sensors in the automotive industry.

Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 90 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

Question and Answer

Would this plug work in my 2011 z71 chevy.    or should i go with the NGK IZTR5B11 ?David G.Apr 26, 2021
Best Answer:Hi David, I'm glad to help you out. Yes, it would. And I highly recommend this Ruthenium HX Series since they are capable of providing up to twice the service life of the Laser Iridium and 4-times of service life of the standard nickel electrode spark plugs. I hope this helps, and if you're interested in this NGK spark plug, you can click on the link below for direct ordering to take advantage of our ongoing sale. Happy shopping. <a href="" target="_blank"></a>
Arnel E.STAFFApr 26, 2021
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