FREE SHIPPING & HANDLING!*                           Order by 11 PM EST for Same Day Shipping!

Denso Iridium Power Spark Plugs


Denso
Denso Iridium Power Spark Plugs

Product images may differ from actual product appearance.

The fundamental design of this new generation of Denso Iridium Power spark plugs retains the proven features used in Denso's OE products and combines a revolutionary Iridium alloy with laser welding technology that allows Denso to harness the power of Iridium. Using Iridium, which is six times harder and eight times stronger than platinum, the tip can be shrunk to only 0.4mm. This means the voltage requirements are decreased while firing performance is greatly improved. A U-Groove has been cut inside the ground electrode to maintain the large volume of space required to form the nucleus of a flame. While still keeping the required voltage low, this powerful technology enables excellent firing performance without increasing the spark gap. The tip of the ground electrode has been cut to form a taper. This greatly improves firing performance by reducing quenching. The extreme hardness and high melting point of Iridium prevented the use of this incredible metal until Denso perfected the Laser Welding Process, which provides a 360° seal so reliable the electrode resists wear even in the harshest conditions.

Heat Range
Hot                     Cold
9 14 16 20 22 24 27 29 31 32 34 35


42 Products Page: 1 2 ... |  Next Results per Page:
12mm Thread x 26.5mm Reach
9/16'' Hex
Projected Tip
Gasket Seat
  313-3444
Iridium Extra Long Life Spark Plug
  • Heat Range: 20
  • 1.5mm Insulator Projection
    Sold Individually
  • $17.99
    Order Today Ships 11/03/14
    14mm Thread x .460'' Reach
    5/8'' Hex
    Projected Tip
    Tapered Seat
    ITF-Series plugs have a 1.5mm insulator projection for better ignitability in older domestic applications.

    313-5330
    Iridium Performance ITF16 Spark Plug
  • Heat Range: 16
  • 1.5mm Insulator Projection
    Sold Individually
  • $13.99
    Ships

    313-5331
    Iridium Performance ITF20 Spark Plug
  • Heat Range: 20
  • 1.5mm Insulator Projection
    Sold Individually
  • $13.99
    Order Today Ships 11/03/14
    14mm Thread x .708'' Reach
    5/8'' Hex
    Projected Tip
    Tapered Seat
    IT-Series plugs have a 1.5mm insulator projection for increased performance, while the -0.5mm projection offers better heat resistance, in newer domestic applications.

    313-5325
    Iridium Performance IT16 Spark Plug
  • Heat Range: 16
  • 1.5mm Insulator Projection
    Sold Individually
  • $13.99
    Ships

    313-5326
    Iridium Performance IT20 Spark Plug
  • Heat Range: 20
  • 1.5mm Insulator Projection
    Sold Individually
  • $13.99
    Order Today Ships 11/03/14

    313-5328
    Iridium Performance IT24 Spark Plug
  • Heat Range: 24
  • -0.5mm Insulator Projection
    Sold Individually
  • $13.99
    Ships
    14mm Thread x .708'' Reach
    5/8'' Hex
    Projected Tip
    Tapered Seat
    IT-Series plugs have a 1.5mm insulator projection for increased performance, while the -0.5mm projection offers better heat resistance, in newer domestic applications.

    313-5327
    Iridium Performance IT22 Spark Plug
  • Heat Range: 22
  • 1.5mm Insulator Projection
    Sold Individually
  • $13.99
    Ships
      313-5329
    Iridium Performance IT27 Spark Plug
  • Heat Range: 27
  • -0.5mm Insulator Projection
    Sold Individually
  • $13.99
    Ships
    14mm Thread x 1/2'' Reach
    13/16'' Hex
    Tapered Tip
    Gasket Seat

    313-5380
    Iridium Performance IW24 Spark Plug
  • Heat Range: 24
  • 1.5mm Insulator Projection
    Sold Individually
  • $13.99
    Ships
    14mm Thread x 19mm Reach
    13/16'' Hex
    Projected Tip
    Gasket Seat
    IW-Series plugs have either a porcelain projection of 1.5mm for better ignition or a -0.5mm projection for better heat resistance.

    313-5305
    Iridium Performance IW16 Spark Plug
  • Heat Range: 16
  • 1.5mm Insulator Projection
    Sold Individually
  • $13.99
    Order Today Ships 11/03/14

    313-5306
    Iridium Performance IW20 Spark Plug
  • Heat Range: 20
  • 1.5mm Insulator Projection
    Sold Individually
  • $13.99
    Order Today Ships 11/03/14

    313-5307
    Iridium Performance IW22 Spark Plug
  • Heat Range: 22
  • 1.5mm Insulator Projection
    Sold Individually
  • $13.99
    Order Today Ships 11/03/14

    313-5316
    Iridium Performance IW24 Spark Plug
  • Heat Range: 24
  • -0.5mm Insulator Projection
    Sold Individually
  • $13.99
    Order Today Ships 11/03/14

    313-5317
    Iridium Performance IW27 Spark Plug
  • Heat Range: 27
  • -0.5mm Insulator Projection
    Sold Individually
  • $13.99
    Order Today Ships 11/03/14

    313-5318
    Iridium Performance IW29 Spark Plug
  • Heat Range: 29
  • -0.5mm Insulator Projection
    Sold Individually
  • $23.99
    Order Today Ships 11/03/14

    313-5319
    Iridium Performance IW31 Spark Plug
  • Heat Range: 31
  • -0.5mm Insulator Projection
    Sold Individually
  • $23.99
    Order Today Ships 11/03/14

    313-5320
    Iridium Performance IW34 Spark Plug
  • Heat Range: 34
  • -0.5mm Insulator Projection
    Sold Individually
  • $23.99
    Ships
    14mm Thread x 19mm Reach
    16mm Hex
    Projected Tip
    Gasket Seat
    IK-Series plugs 1.5mm projection are perforemance focused, while the -0.5mm projection plugs emphasize heat resistance.

    313-5303
    Iridium Performance IK16 Spark Plug
  • Heat Range: 16
  • 1.5mm Insulator Projection
    Sold Individually
  • $13.99
    Order Today Ships 11/03/14

    313-5304
    Iridium Performance IK20 Spark Plug
  • Heat Range: 20
  • 1.5mm Insulator Projection
    Sold Individually
  • $13.99
    Ships

    313-5310
    Iridium Performance IK22 Spark Plug
  • Heat Range: 22
  • 1.5mm Insulator Projection
    Sold Individually
  • $13.99
    Ships

    313-5311
    Iridium Performance IK24 Spark Plug
  • Heat Range: 24
  • 1.5mm Insulator Projection
    Sold Individually
  • $13.99
    Ships

    313-5312
    Iridium Performance IK27 Spark Plug
  • Heat Range: 27
  • 0.5mm Insulator Projection
    Sold Individually
  • $13.99
    Ships

    313-5321
    Iridium Performance IK31 Spark Plug
  • Heat Range: 31
  • -0.5mm Insulator Projection
    Sold Individually
  • $23.99
    Ships
    14mm Thread x 19mm Reach
    16mm Hex
    Projected Tip
    Gasket Seat
    IQ-Series plugs are 1/8'' longer than the IK plugs between the top of the hex and top of the terminal.

    313-5301
    Iridium Performance IQ16 Spark Plug
  • Heat Range: 16
  • 1.5mm Insulator Projection
    Sold Individually
  • $13.99
    Order Today Ships 11/03/14

    313-5302
    Iridium Performance IQ20 Spark Plug
  • Heat Range: 20
  • 1.5mm Insulator Projection
    Sold Individually
  • $13.99
    Order Today Ships 11/03/14

    313-5313
    Iridium Performance IQ22 Spark Plug
  • Heat Range: 22
  • 1.5mm Insulator Projection
    Sold Individually
  • $13.99
    Order Today Ships 11/03/14

    313-5314
    Iridium Performance IQ24 Spark Plug
  • Heat Range: 24
  • 1.5mm Insulator Projection
    Sold Individually
  • $13.99
    Order Today Ships 11/03/14
    14mm Thread x 19mm Reach
    16mm Hex
    Projected Tip
    Gasket Seat
    IK-Series plugs 1.5mm projection are perforemance focused, while the -0.5mm projection plugs emphasize heat resistance.

    313-IK01-27
    Iridium Performance IK16 Spark Plug
  • 1.5mm Insulator Projection
    Sold Individually
  • $43.99
    Order Today Ships 11/03/14

    313-IK02-27
    Iridium Performance IK16 Spark Plug
  • 1.5mm Insulator Projection
    Sold Individually
  • $43.99
    Order Today Ships 11/03/14
    14mm Thread x 25mm Reach
    5/8'' Hex
    Projected Tip
    Tapered Seat

    313-5341
    Iridium Performance ITV24 Spark Plug
  • Heat Range: 24
  • .04mm Insulator Projection Sold Individually
  • $13.99
    Ships

    42 Products Page: 1 2 ... |  Next Results per Page: