Major sparkplug product lineup

Iridium plug

Super ignition, φ12 long-reach shroud iridium plug
  • Super lgnition Plug
  • The needle-shaped ground electrode of this revolutionary iridium plug features DENSO’s own exclusive technology, resulting in an unparalleled reduction of quenching effect.
  • Equipped as original parts on Nissan’s TIIDA and NOTE
  • φ12×L26.5×14
  • NISSAN
Super ignition, long-reach iridium plug
  • Super lgnition Plug
  • By pairing an ultra-fine 0.55 mm diameter iridium alloy tip on the center electrode with a platinum tip on the ground electrode, this iridium plug will realize a very long lifetime.
  • Equipped on Toyota’s SIENTA and CROWN as genuine parts since 2003.
  • φ14×L26.5×16
  • TOYOTA
Super ignition, iridium plug
  • Super lgnition Plug
  • φ14×L19×16
  • TOYOTA
  • MAZDA
Long-reach iridium plug
  • φ14×L26.5×16
  • Honda / Toyota
New triple-electrode iridium plug
  • Under normal operating conditions the main electrode sparks, but if it becomes fouled, side electrodes generate the spark to burn off any carbon - this plug is the optimum design for direct fuel-injection engines. Equipped as original parts for 3000 cc direct injection engines (D-4) on TOYOTA’s CROWN and other models.
  • φ14×L19×16
  • TOYOTA
Iridium plug
  • We developed a 0.7 mm diameter ultra-fine iridium alloy electrode, the first in the world. Ignitability and lifetime have dramatically improved. The SK16R-P11 is equipped as original parts on TOYOTA’s CENTURY.
  • φ14×L19×16
  • TOYOTA / HONDA / MAZDA / MITSUBISHI / HYUNDAI / SUZUKI
イリジウム(ステンレスガスケットタイプ)
  • φ14×L19×16
  • HONDA
Extended shroud iridium plug
  • φ14×L20.5×16
  • HONDA

* SKJ20DR-M11S with stainless steel gasket

φ12 long-reach iridium plug
  • φ12×L26.5×16
  • DAIHATSU / ISUZU / MITSUBISHI
φ12 long-reach iridium plug
  • By joining an ultra-fine 0.55 mm diameter iridium alloy tip on center electrode and platinum tip on ground electrode, this iridium plug has realized a very long lifetime.
  • φ12×L26.5×14
  • NISSAN
φ0.4 iridium plug with platinum tip ground electrode
  • φ14×L19×16
  • DAIHATSU / MITSUBISHI / HONDA
φ0.4 iridium plug with platinum tip ground electrode
  • φ10×L(6.3 + 12.7)×16
  • Honda Motorcycles
φ0.4 iridium plug with platinum tip ground electrode
  • φ10×L(6.3 + 12.7)×16
  • Honda Motorcycles

* VUH27ES with stainless steel gasket

φ0.4 iridium plug
  • φ12×L19×16
  • SUZUKI
φ0.4 iridium plug
  • Supplied 0.4 mm diameter iridium plugs to Honda Motorcycles for the first time in the world.
  • φ10×L (6.3 + 12.7)×14
  • HONDA Motorcycles CBR900RR
φ0.4mmイリジウム
  • φ10×L19×16
  • YAMAHA Motorcycles YZFR-1
  • SUZUKI GSX1300RB-KING

Actual products may differ from images shown.