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NGK Ruthenium HX Spark Plug (LKAR6AHX): High Ignitability & Durability

(49 reviews)
Part # 97292
60 day warranty
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Product Information

Product Details
Part No. 97292
Warranty Details (60 Day Warranty)
NGK Ruthenium HX High Ignitability spark plugs are the best in class plug for todays modern vehicles. Patented Ruthenium technology offers the most advance tip technology and delivers the highest performance and life expectancy. Created from advanced OE technology as a high ignitability plug, Ruthenium HX spark plugs come with patented, specialized OEM DFE and PSPE tip designs. NGK Ruthenium HX High Ignitability spark plugs provide a more complete fuel burn resulting in a quicker throttle response, smoother idle and better cold starts. Ruthenium center electrode provides industry leading durability.

Product Features:
  • HIGH IGNITABILITY DOUBLE FINE ELECTRODE DESIGN: Combines 0.6 millimeter ruthenium center with opposed fine wire platinum ground electrode
  • RUTHENIUM ALLOY CENTER ELECTRODE: NGK's patented ruthenium technology produces maximum performance, ignitability & durability at high temperatures
  • PLATINUM PIN TYPE GROUND ELECTRODE: Provides more complete fuel burn, quicker throttle response, smoother idle and better cold starts
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
  • RECOMMENDED USAGE: Modern vehicles using OE DFE type spark plugs or for those seeking an aftermarket plug with the latest OE technology
Specifications
Center Electrode Core Material:
Copper

Center Electrode Design:
Fine Wire

Center Electrode Insulator Tip Projection:
0.12 in

Center Electrode Projection:
Mid Projection

Center Electrode Tip Material:
Ruthenium

Electrical Terminal Type:
Non-Removable Nut

Grade Type:
Performance

Ground Configuration:
J-Gap

Ground Electrode Core Material:
Nickel

Ground Electrode Quantity:
1

Ground Electrode Tip Design:
Dual Fine Electrode (DFE) - High Ignitability

Ground Electrode Tip Material:
Platinum

Hex Size:
14 mm

Insulator Height:
1.99 in

Insulator Material:
Ceramic

Manufacturer Heat Range:
6

Pre-Gap Size:
.044 in

Reach:
1.043 in

Resistance:
5000.0 ohm

Resistor Type:
Yes

Seat Type:
Flat

Skirt:
No

Skirt Length:
0.0 in

Thread Diameter:
0.472 in

Thread Size:
M12 - 1.25

Washer Type:
Crush

Washer(s) Included:
Yes
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4.73 out of 5
49 Customer Reviews
96% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
45
4 Stars
0
3 Stars
1
2 Stars
1
1 Star
2
Great improvementGood product
Pros
No Pros
Cons
No Cons
Most Liked Positive Review
Working well so far
I took the risk on this new Ruthenium spark plug technology, and so far it seems to be paying off. I'm replacing the stock NGK Laser Iridiums that came in my 2013 WRX, 70K miles on them, so they definitely weren't at end of life but I wanted to change them out before I started having trouble. First things I noticed after installing the Ruthenium plugs: throttle responsiveness at idle seems a bit slower, but acceleration at all stages is utterly smooth. The difference in throttle response is not alarming, just a couple of near-stalls while getting used to the difference, and considering that this is my first spark plug replacement job I'm more inclined to blame the user than the product. The difference in acceleration was immediately noticeable. For a little while now I had noticed that acceleration was getting a bit jumpy/hesitant at some stages, but after replacing the stock plugs that hesitation is a distant memory. 0-60 is smooth as butter. I'm certainly not claiming that these plugs will increase horsepower, but improved consistency is definitely a plus. Time will tell with this new technology, but so far I would definitely recommend the switch. I haven't driven them long enough to notice any change in fuel consumption, but I'll update with any new findings.
Most Liked Negative Review
Not great
Ordered these as a compatible replacement for a Subaru Crosstrek. All 4 where installed and the engine ran really rough and eventually began misfiring. Rechecked them all for cracks and found none and reinstalled - same issue. Replaced them with the old ones and those worked fine. All of them were black and fouled up so I assume they weren't igniting properly.
Reviewed by 49 Customers
Good product
I went by advance to get some new spark plugs for my 18 altima cause it was time for a tune up .they had these new ngk ruthenium hx spark plugs ,so I thought I'd get a set and try em.I gap them at the specified gap and installed them in my altima .i can tell a big difference .car runs smoother ,better gas mileage and better throttle response .
Bottom Line Yes, I would recommend to a friend
Worth the money
Purchased these for my 17 Mustang Ecoboost.Regarded by many as the best plug available for this engine,I have to agree.I was getting a miss around 3k rpm,thought it was bad gas or plugs.Replaced original plugs around 75k with good iridium plugs,but these on on another level.Bear in mind I had one very bad plug,but these idle beautifully,great throttle response,and it runs so much better,something I never noticed as much with my original plug change.I cant attest to mileage as yet,but thinking it will help with that as well.These will be my go to plug from here on out.Highly recommended.
Bottom Line Yes, I would recommend to a friend
NGK is best spark plug for Accord.
Got misfire on cylinder 1, exactly fit for 2016 Honda Accord 4 cylinder. Great quality like OEM NGK spark plug. Love NGK I will buy again.
Bottom Line Yes, I would recommend to a friend
Maybe a different brand name but so far my NGK's run perfect
My Ruthenium plugs are better than all of the Iridium plugs that I've used for years especially in the cold and damp weather . That kind of weather is normal here in Bullitt county Kentucky .
Bottom Line Yes, I would recommend to a friend
Working well so far
I took the risk on this new Ruthenium spark plug technology, and so far it seems to be paying off. I'm replacing the stock NGK Laser Iridiums that came in my 2013 WRX, 70K miles on them, so they definitely weren't at end of life but I wanted to change them out before I started having trouble. First things I noticed after installing the Ruthenium plugs: throttle responsiveness at idle seems a bit slower, but acceleration at all stages is utterly smooth. The difference in throttle response is not alarming, just a couple of near-stalls while getting used to the difference, and considering that this is my first spark plug replacement job I'm more inclined to blame the user than the product. The difference in acceleration was immediately noticeable. For a little while now I had noticed that acceleration was getting a bit jumpy/hesitant at some stages, but after replacing the stock plugs that hesitation is a distant memory. 0-60 is smooth as butter. I'm certainly not claiming that these plugs will increase horsepower, but improved consistency is definitely a plus. Time will tell with this new technology, but so far I would definitely recommend the switch. I haven't driven them long enough to notice any change in fuel consumption, but I'll update with any new findings.
Bottom Line Yes, I would recommend to a friend
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