SKU: 17902399091

NGK Spark Plug - SIMR8A9 (91064)

Sale price$65.23 Regular price$72.48
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Ships within 48 hours · Estimated delivery Sep 20 - Sep 25

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Description

NGK Spark Plug - SIMR8A9 (91064)NGK have over 80 years of experience in spark plug manufacturing and are the world leader in spark plug technology. NGK has an extensive range of spark plugs, each with their own unique characteristics specifically engineered to its application and designed to suit a broad range of motorcycles, ATVs & UTVs in Australasia. With NGK's dedication to quality, outstanding reliability and state of the art manufacturing techniques, you can rely on your NGK

NGK have over 80 years of experience in spark plug manufacturing and are the world leader in spark plug technology. NGK has an extensive range of spark plugs, each with their own unique characteristics specifically engineered to its application and designed to suit a broad range of motorcycles, ATVs & UTVs in Australasia. With NGK's dedication to quality, outstanding reliability and state of the art manufacturing techniques, you can rely on your NGK Spark Plugs.

Don’t just ask for a spark plug, insist on NGK.

NGK iridium spark plugs currently represent the highest-quality technological solution. They feature an iridium-alloy on the middle electrode welded on in a special process using a laser. One of the world’s hardest metals, the precious metal iridium starts melting at a temperature of 2450°C and is therefore very resistant to spark erosion. By using it, the service life is doubled on average in comparison to standard nickel spark plugs.

Shell

  • Thread Size: 10mm
  • Thread Pitch: 1.0mm
  • Seat Type: Gasket
  • Resistor Value: 5K Ohm
  • Reach: 19mm (3/4")
  • Hex Size: 16mm (5/8")
  • Terminal Type: Threaded Stud
  • Overall Height: ISO
  • Gap: 0.9mm (0.035")

Centre Electrode

  • Material: Iridium
  • Type: Fine Wire
  • Size: 0.6mm
  • Projection: Projected

Ground Electrode

  • Material: Platinum
  • Type: Standard
  • Shape: Taper Cut
  • Quantity: 1

Specifications

  • Heat Range: 8
  • Resistor: Yes
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 17902399091

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4.3 ★★★★★
Based on 5 reviews
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Product Reviews
C
CMAUSA
San Leandro, US
★★★★★ 4
Do one oil change myself and it’s more than paid for.
Color: Silver, Color: Silver
It is 74 mm. It’s nicely made of cast aluminum. It has a rough cast finish so it shouldn’t be difficult to hold on to. It does fit my Lexus filter and the price is very reasonable. It also fits the oil filter on my 1999 (antique) Harley Davidson Heritage Classic. Which is the primary reason I ordered it. I don’t know this for certain but I suspect it will fit all HD EVO engines. That would be 1984 through 1998 except the Heritage which didn’t change to the 88 Twin Cam until 2000.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025
J
Verified Purchase
Jon
Fort Morgan, US
★★★★★ 1
Didnt fit my C300
Color: Silver
Didn’t fit my 2008 Mercedes C300 4matic sport. I bought another one on Amazon from a different company and it did fit. Eochi or something brand.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 6, 2025
C
Verified Purchase
Courtney & Chris
San Leandro, US
★★★★★ 1
Does not fit Boxster. Not even 74mm
Color: Silver
This is not measuring 74mm and absolutely does NOT fit my 2003 Porsche Boxster like the Amazon compatible check says it does.
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Reviewed in the United States on November 9, 2025
W
w
Fort Morgan, US
★★★★★ 1
Amazon Vehicle Tool Parts Fitting App incorrect
Color: Silver
Amazon your Vehicle fit is Wrong this tool will not work at all on 1981 240D Mercedes oil filter
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Reviewed in the United States on November 24, 2025
C
Verified Purchase
Chantell B.
Draper, US
★★★★★ 5
Fits perfect
Fits perfect in 2018 x5
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026

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