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Denso Iridium Long-Life Spark Plug 3421-(2)

  • Our Price: $33.48
  • Part Number: 3421-(2)
This item is temporarily out of stock.

Iridium Long-Life Spark Plug

  • Part #: 3421-(2)
  • 2

$33.48

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Select your vehicle details above to ensure item compatibility.

  • Denso Iridium Long-Life Spark Plugs provide your vehicle with the high-performance spark it needs
  • Made of long-lasting iridium, the most corrosive-resistant metal in the world
  • Eight times stronger than traditional platinum spark plugs
  • Custom-designed to your year, make and model vehicle
  • The Denso Iridium Spark Plug improves fuel economy
  • Dyno-tested for performance and power gains
  • 0.7 mm iridium center electrode improves ignition
  • Can withstand temperatures of up to 4,000 Fahrenheit
  • Works great with imports and domestic engines
  • The Denso Iridium Long-Life Spark Plug will last up to 100,000 miles

Improve your engine's fuel economy without sacrificing performance with a Denso Iridium Long-Life Spark Plug. The Denso Iridium Spark Plug provides dyno-tested power and efficiency gains for up to 100,000 miles. These spark plugs work great on vehicles with heavy-duty tuners and turbo-chargers and can withstand temperatures of 4,000 degrees Fahrenheit.

Denso's strength comes from its materials. Each spark plug is constructed from an unbelievably strong iridium alloy, a material unlike any other on the planet. Iridium is one of the rarest elements in the earth's crust, and its origins allegedly trace back to the asteroid that wiped out the dinosaurs. It is one of the hardest metals on the planet, and also the most corrosive-resistant. For car guys, that means Iridium is perfect for making spark plugs. It has a higher melting point than platinum and it's virtually rust proof. That's why the Denso Spark Plug is six times harder and eight times stronger than the conventional platinum plug.

Install a set of Denso Spark Plugs today and give your engine a serious efficiency upgrade.

Denso 3421-(2) fits:

  • 2008-2009 BMW 128i
  • 2006 BMW 325i
  • 2006 BMW 325xi
  • 2007-2009 BMW 328i
  • 2007-2008 BMW 328xi
  • 2006 BMW 330i
  • 2006-2007 BMW 525i
  • 2006-2007 BMW 525xi
  • 2009 BMW 528i
  • 2008-2009 BMW 528xi
  • 2006-2007 BMW 530i
  • 2006-2007 BMW 530xi
  • 2007-2009 BMW X3
  • 2007-2008 BMW X5
  • 2006-2008 BMW Z4
  • 2004 Buick Rendezvous
  • 2004-2006 Cadillac SRX
  • 2005-2006 Cadillac STS
  • 2008-2009 Honda Civic
  • 2004 Infiniti QX56
  • 2008-2009 Lexus LX570
  • 2003 Mercedes-Benz E55 Amg
  • 2007 Mercedes-Benz Sl55 Amg
  • 2007-2009 Mitsubishi Eclipse
  • 2004-2009 Mitsubishi Galant
  • 2004-2006 Mitsubishi Lancer
  • 2004-2006 Mitsubishi Outlander
  • 2001 Nissan Pathfinder
  • 2006-2009 Saab 9-3
  • 2006-2007 Subaru B9 Tribeca
  • 2004-2006 Subaru Baja
  • 2004-2008 Subaru Forester
  • 2004-2008 Subaru Impreza
  • 2005-2008 Subaru Legacy
  • 2001-2008 Subaru Outback
  • 2003-2009 Toyota 4Runner
  • 2007-2009 Toyota FJ Cruiser
  • 2008-2009 Toyota Land Cruiser
  • 2008-2009 Toyota Sequoia
  • 2005-2009 Toyota Tacoma
  • 2005-2009 Toyota Tundra
  • 2008-2009 Volvo C30
  • 2006-2009 Volvo C70
  • 2004-2009 Volvo S40
  • 2006-2009 Volvo S60
  • 2007-2009 Volvo S80
  • 2005-2009 Volvo V50
  • 2006-2009 Volvo V70
  • 2009 Volvo XC70
  • 2005-2009 Volvo XC90