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Dinan Iridium Spark Plug - 12x26.5x14MM (Flat) - Heat Range 9

Part # D640-0001

  • Heat range 9 spark plug (Similar: Bosch 3, Brisk 10, Champion 4, Denso 27, and NGK 9)
  • 152% higher melting point than silver, 125% higher than copper, and 38% higher than platinum
  • Stronger than copper and platinum
  • Acceptable for high performance / tuned and stock vehicle applications alike
  • Projected insulator design
  • Lower required supplied voltage
  • Cooler operating temperature than stock plugs
  • Optimized electrode design for hard to ignite fuels, such as ethanol
  • Resists preignition better than stock plugs
  • An excellent match for Dinan ignition coils
  • Thread reach: 26.5mm
  • Thread diameter: 12mm
  • Hexagon: 14mm Bi-Hex
  • Terminal Type: Cup
  • Seat Type: Flat
  • Install Torque: 17 Nm
  • Insulator Material: Ceramic
  • Supplied Gap: 0.5mm
  • 1 step colder than OEM (Gen 1 B48, Gen 1/2 B58, & S58)
  • Made in the EU

Description

Dinan Iridium Spark Plugs are an excellent upgrade for tuned, and even stock engines. 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.

Specifications

Center Electrode Core MaterialCopper
Center Electrode ProjectionShort Projection
Center Electrode Tip MaterialIridium
Electrical Terminal TypeCup
Grade TypePerformance
Hex Size14 mm
Hex TypeBi-Hex
IndexedNo
Insulator MaterialCeramic
Reach26.5 mm
Seat TypeFlat
Thread Diameter12 mm
UPC / GTIN00810065216687
Warranty1yr/Unlimited Miles warranty

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2022 - 2024BMW330e xDriveBaseSedan (4 Door)2.0L I4
2017 - 2024BMW330iBaseSedan (4 Door)2.0L I4
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2017 - 2024BMW330i xDriveBaseSedan (4 Door)2.0L I4
2017 - 2019BMW330i xDriveBaseWagon2.0L I4
2016 - 2018BMW340iBaseSedan (4 Door)3.0L I6
2017 - 2019BMW340i GT xDriveBaseHatchback3.0L I6
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2017 - 2020BMW430i xDriveBaseConvertible2.0L I4
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2017 - 2027BMW430i xDriveBaseCoupe (2 Door)2.0L I4
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2017 - 2020BMW440iBaseConvertible3.0L I6
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2020 - 2025BMWX4M, M Competition, M40i, xDrive30iSport Utility2.0L I4, 3.0L I6
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2016 - 2020MiniCooperBase, John Cooper Works, SHatchback1.5L I3, 2.0L I4
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