Denso Iridium IKH24 Spark Plug

  • Denso Iridium IKH24 Spark Plug (5346)
$19.48 $10.49
(You save $8.99)
0.20 LBS
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VW/AUDI PERFORMANCE PARTS: Denso Iridium IKH24 Spark Plug (5346)



  • Tapered cut, U-Groove ground electrode
  • 0.4mm iridium center electrode
  • 360-degree laser welding assembly process
  • Required ignition voltage reduced
  • Unsurpassed center electrode durability

  DENSO Iridium Power spark plugs represent a performance breakthrough.  The laser-welded center electrode is only 0.4mm in diameter - the slimmest iridium electrode in the industry. The taper-cut side electrode complements the design, delivering reliable spark energy under the most gruelling pressures and temperatures.  DENSO engineers used the power of this miraculous metal to produce an iridium center electrode that is only 0.4mm in diameter. With its superior thermal qualities, this whisker-fine electrode is capable of taking the most extreme heat and punishment.

  This breakthrough was matched to one of DENSO's most famous innovations, the patented U-Groove ground electrode. The combination of these two features resulted in the Iridium Power® plug, one of the most advanced and innovative spark plugs on the market.  The Iridium Power plug delivers greater spark energy while demanding significantly less secondary required voltage from the ignition system.



*Recommended for stage 1 ECU and up VW/Audi MQB platforms.

NOTE: APR’s performance software increases output substantially and as such, APR recommends upgrading the engine’s spark plugs to Denso IKH24 with a .024” +/- .002” gap at all stages. If the vehicle is used for any form of racing, or extended wide-open-throttle sprints on the Autobahn, APR highly recommends upgrading the plugs for engine longevity and safety. On engines with an upgraded turbocharger, the spark plugs are required.

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