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Dinan N20/N54/N55/S55/N63/S63 Iridium Spark Plug - Heat Range 9 - 12mm x 26.5mm x 14mm (HV) - SINGLE

32 in stock
$21.27
$21.27 $23.93
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Dinan Iridium Spark Plugs are an excellent upgrade for tuned, and even stock engines, where applicable.* Our spark plugs are made from Iridium - one of the strongest materials available. They last longer than other materials with higher melting points, run cooler, resist preignition, and even require less voltage to produce a strong spark. The iridium electrode with its copper core is harder and stronger than other materials, can dissipate heat more easily, and is better protected from melting, cracking, and other limitations found with standard plugs.

  • 152% higher melting point than silver, 125% higher than copper, and 38% higher than platinum
  • Heat range 9 spark plug (Similar: Bosch 3, Brisk 10, Champion 4, Denso 27, and NGK 9)
  • Acceptable for high performance / tuned and most stock* vehicle applications alike
  • Optimized electrode design for hard to ignite fuels, such as ethanol
  • Cooler operating temperature than stock plugs
  • Resists preignition better than stock plugs
  • An excellent match for Dinan ignition coils
  • 1 step colder than OEM (N20, S55, N63, S63)
  • Stronger than copper and platinum
  • Lower required supplied voltage
  • 3 Steps colder than OEM (N54)
  • 2 steps colder than OEM (N55)
  • Insulator Material: Ceramic
  • Projected insulator design
  • Thread diameter: 12mm
  • Install Torque: 17 Nm
  • Thread reach: 26.5mm
  • Hexagon: 14mm Bi-Hex
  • Supplied Gap: 0.5mm
  • Terminal Type: Nut
  • Seat Type: Flat
  • Made in the EU

This Part Fits:

Year Make Model Submodel
2011 BMW 1 Series M Base
2008-2013 BMW 135i Base
2013 BMW 135is Base
2014-2016 BMW 228i Base
2015-2016 BMW 228i xDrive Base
2013-2018 BMW 320i Base
2013-2018 BMW 320i xDrive Base
2012-2016 BMW 328i Base
2014-2016 BMW 328i GT xDrive Base
2013-2016 BMW 328i xDrive Base
2007-2015 BMW 335i Base
2014-2016 BMW 335i GT xDrive Base
2009-2015 BMW 335i xDrive Base
2011-2013 BMW 335is Base
2007-2008 BMW 335xi Base
2014-2016 BMW 428i Base
2015-2016 BMW 428i Gran Coupe Base
2014-2016 BMW 428i xDrive Base
2015-2016 BMW 428i xDrive Gran Coupe Base
2014-2016 BMW 435i Base
2015-2016 BMW 435i Gran Coupe Base
2014-2016 BMW 435i xDrive Base
2015-2016 BMW 435i xDrive Gran Coupe Base
2012-2016 BMW 528i Base
2012-2016 BMW 528i xDrive Base
2008-2016 BMW 535i Base
2010-2017 BMW 535i GT Base
2011-2017 BMW 535i GT xDrive Base
2009-2016 BMW 535i xDrive Base
2008 BMW 535xi Base
2011-2016 BMW 550i Base
2010-2015 BMW 550i GT Base
2010-2017 BMW 550i GT xDrive Base
2011-2016 BMW 550i xDrive Base
2012-2018 BMW 640i Base
2013-2019 BMW 640i Gran Coupe Base
2014-2018 BMW 640i xDrive Base
2014-2019 BMW 640i xDrive Gran Coupe Base
2012-2018 BMW 650i Base
2013-2019 BMW 650i Gran Coupe Base
2012-2018 BMW 650i xDrive Base
2013-2019 BMW 650i xDrive Gran Coupe Base
2011-2015 BMW 740i Base
2011-2015 BMW 740Li Base
2013-2015 BMW 740Li xDrive Base
2009-2019 BMW 750i Base
2010-2019 BMW 750i xDrive Base
2011-2012 BMW 750Li ActiveHybrid
2009-2015 BMW 750Li Base
2010-2015 BMW 750Li xDrive Base
2010-2015 BMW 760Li Base
2011-2015 BMW Alpina B7 Base
2017-2019 BMW Alpina B7 xDrive
2011-2015 BMW Alpina B7 xDrive Base
2011-2015 BMW Alpina B7L Base
2011-2015 BMW Alpina B7L xDrive Base
2016-2018 BMW M2 Base
2019-2021 BMW M2 Competition
2014-2016 BMW M235i Base
2015-2016 BMW M235i xDrive Base
2015-2018 BMW M3 Base
2015-2020 BMW M4 Base
2019-2020 BMW M4 CS
2016 BMW M4 GTS
2013-2016 BMW M5 Base
2012-2018 BMW M6 Base
2014-2019 BMW M6 Gran Coupe Base
2013-2015 BMW X1 sDrive28i
2013-2015 BMW X1 xDrive28i
2013-2015 BMW X1 xDrive35i
2015-2017 BMW X3 sDrive28i
2011-2017 BMW X3 xDrive28i
2011-2017 BMW X3 xDrive35i
2016-2018 BMW X4 M40i
2015-2018 BMW X4 xDrive28i
2015-2016 BMW X4 xDrive35i
2010-2013,2015-2018 BMW X5 M
2014-2018 BMW X5 sDrive35i
2009-2010 BMW X5 xDrive30i
2011-2018 BMW X5 xDrive35i
2011-2019 BMW X5 xDrive50i
2010-2019 BMW X6 M
2015-2019 BMW X6 sDrive35i
2008-2019 BMW X6 xDrive35i
2008-2019 BMW X6 xDrive50i
2012-2016 BMW Z4 sDrive28i
2009-2016 BMW Z4 sDrive35i
2011-2016 BMW Z4 sDrive35is
Dinan N20/N54/N55/S55/N63/S63 Iridium Spark Plug - Heat Range 9 - 12mm x 26.5mm x 14mm (HV) - SINGLE

$21.27

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    Jordan Smith
    Seattle, Washington

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    Austin, Texas

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    London, England

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    San Francisco, California

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    Denver, Colorado

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    Boston, Massachusetts

  • Smooth checkout

    Checkout was quick and straightforward. My order confirmation came through instantly, and everything arrived exactly as expected.

    Morgan Lee
    Portland, Oregon

  • Great value

    Really pleased with the quality for the price. The product felt premium, worked perfectly out of the box, and was well packaged.

    Jamie Carter
    Manchester, England

Can I return a part after it has been installed?

Generally, installed or used performance parts cannot be returned. We strongly recommend verifying vehicle fitment and inspecting the product before installation.

Can I cancel my order after it has been placed?

We begin processing orders as quickly as possible. If you need to cancel, contact us immediately. Once an order has entered fulfillment, been submitted to a supplier, or shipped, cancellation may no longer be possible.

Will this part fit my vehicle?

Fitment varies by year, make, model, trim, engine, and drivetrain. Use our vehicle fitment information to confirm compatibility. If you're unsure, contact us with your VIN and we'll help verify fitment before you order.

How do I know if this is the right upgrade for my build?

Not every upgrade makes sense for every vehicle or build. Tell us your vehicle, current modifications, and performance goals, and we'll help determine whether this product is a good fit.

Are the products you sell authentic?

Yes. We source products through established manufacturers and authorized distribution channels. We do not sell counterfeit or imitation performance parts.

Is professional installation recommended?

For most performance components, yes. Proper installation is critical for fitment, reliability, and performance. Some products may also require specialized tools, programming, tuning, or additional supporting modifications.