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CONTENTS
Find Your Plugs
Reference
Part Number Chart
IRIDIUM POWER
Features
Structure
Linenup
Specifications
IRIDIUM TOUGH
Features
Structure
Linenup
Specifications
IRIDIUM PLUS
Features
Specifications
IRIDIUM POWER
Features
Structure
Linenup
Specifications
Basic_Knowledge
Plugs Configrations
 Plugs Specifications
Q & A
IRIDIUM POWER Q&A
IRIDIUM TOUGH Q&A
TECH Q&A
 Sales Companies
Cross Reference
Product lineup of iridium power and introduction of feature
IKH series
IKH16. IKH20. IKH22. IKH24. IKH27
・  14mm dia. X 26.5mm length long reach type.
・  For Subaru 3 Liter, Nissan, Peugeot, Citroen, and Yamaha Marine.
・  IRIDIUM TOUGH VKH16, VKH20, and VKH22 are also on sale.
IK series
IK16. IK20. IK22. IK24. IK27. IK31. IK34. IK16G. IK20G. IK22G. IK16L. IK20L
・  Mainly used for cars. ISO type.
・  14mm dia. X L19mm length type.
・  IK22 and above are for tuned engines, with a spark gap of 0.8mm.
・  IK16G, IK20G, and IK22G have a solid, stainless steel gasket (mainly used with Honda engines).
・  IRIDIUM TOUGH VK16, VK20, and VK22 are also on sale at the same time.
・  IK□L is extended type (spark position 5mm)
IQ series
IQ16. IQ20. IQ22. IQ24. IQ27. IQ31. IQ34
・  Mainly used for cars.
・  14mm dia. X L19mm length type.
・  IQ22 and above are for tuned engines, with a spark gap of 0.8mm.
・  IRIDIUM TOUGH VQ16, VQ20, and VQ22 are also on sale.
IW series
IW16. IW20. IW22. IW24. IW27. IW29. IW31. IW34
・  14mm dia. X L19mm length fully threaded type.
・  IW16 to 22 are focused on ignitability with a 1.5mm projection, whereas IW24 to 34 are focused on heat resistance with a projection of -1.5mm.
・  The spark position of IW24 to 34 is projected 0.5mm compared to normal (1.0 → 1.5mm).
・  Equipped with 0.4 mm diameter iridium center electrode for improved ignitability.
・  IRIDIUM TOUGH VW16, VW20, and VW22 are also on sale.
IWM series
IWM24. IWM27. IWM31
・  This type has a gasket face height shortened by approximately 10mm from the IW Type.
・  The IRIDIUM POWER version of the IWM01-□ Iridium Racing plugs.
・  Sold as street-use plugs for 2-cycle 250cc sports bikes.
・  For Honda NSR250, Yamaha TZ250R, Suzuki RGV250Γ (Gamma), Aprilia RS250, KTM260, 300, and 380 ('99 and later).
・  Can also be used for water cooled kart engines.
IWF series
IWF16. IWF20. IWF22. IWF24. IWF27
・  14mm dia. X L12.7mm length short reach type.
・  IWF27 utilizes the heat resistance of the iridium electrode to extend the spark position 0.5mm (1.0 → 1.5mm)
・  Harnessing the low required voltage of the 0.4mm dia. iridium, the gap is wider than in standard types (0.7 →0.8mm). Ignitability is increased even further.
ITV series
ITV16. ITV20. ITV22. ITV24. ITV27
・  14mm dia.. X L25.0mm length tapered seat, long reach type.
・  For the Ford Focus, Mondeo, Escape; Chevrolet Blazer and Mazda Tribute.
ITL series
ITL16. ITL20
・  14mm dia. X L25.0mm length tapered seat, long reach type.
・  Designed so that the head of the plug is 6mm higher than in the ITV.
・  Use with Chrysler's PT Cruiser, Voyager, Dodge, Magnum for 2005 model years and later.
IT series
IT16. IT20. IT22. IT24. IT27
・  14mm dia. X L17.5mm length tapered seat type.
・  For use with GM, Ford, Citroen, Jaguar, Peugeot, Volvo, Mercedes- Benz, Lancia, Renault, Audi, and Mazda.
・  IRIDIUM TOUGH VT16, VT20 are also on sale.
ITF series
ITF16. ITF20. ITF22. ITF24. ITF27
・  14mm dia. X L11.2mm length tapered seat type.
・  For use with GM and Ford.
IXU series
IXU22. IXU24. IXU27
・  12mm dia. X L19mm length fully threaded type.
・  The insulator is fully projected (1.5mm), creating a wide heat range and greater ignitability.
・  16mm Hex
・  For use with small cars and imported motorcycles such as Ducati.
・  IRIDIUM TOUGH VXU22, VXU24 are also on sale.
IXUH series
IXUH22
・  12mmdiaxL26.5mm lenghth fully threaded type.
・  The insulator is fully projected(1.5mm),creating greater heat range and greater ignitability.
・  16mm Hex
・  Application:BMW,Mercedes Benz,Honda,Mitsubishi,Mazda,Subaru,Suzuki.
・  IRIDIUM TOUGH VXUH22 is on sale.
IXUH-I series
IXUH22I
・  12 mm dia. X L26.5mm length fully threaded type.
・  16 mm Hex
・  The spark position is projected 0.4mm.
・  For vehicles with Daihatsu Ion-Detection engines and Honda vehicles.
・  The VXUH-I series is also on sale.
IX series
IX22. IX24. IX27
・  12mm dia. X L19mm length fully threaded type.
・  Using the high heat resistance of the iridium electrode, the spark position is projected 0.4mm more than in standard types. (1.6 → 2.0mm)
・  Harnessing the low required voltage of the 0.4mm dia. iridium the gap is wider than in the standard types (0.7 →0.8mm). A further increase in ignitability.
・  18mm Hex
IX-B series
IX22B. IX24B. IX27B
・  12mm dia. X L19mm length fully threaded type.
・  Compared to the IX type, the insulator projection is extended 0.9mm (0.6 → 1.5mm), resulting in a wider heat range.
・  The spark position is projected 0.8mm more than the IX type. (2.0 → 2.8mm)
・  18mm Hex
IXG series
IXG24. IXG27
・  The Iridium Power versions of the 2mm shroud type plugs (X24/27GPU) used by Honda.
・  Applicable to CB400SS. An expansion of applications is planned.
・  Applicable to Honda CB400SS, XR400RR, CL400/RS, XLR250R, CBX250S, FTR250, CBX400F, XR250R.
IU series
IU20. IU22. IU24. IU27. IU31
・  10mm dia. X L19mm length fully threaded type.
・  Harnessing the low required voltage of the 0.4mm iridium center electrode, the spark gap is wider than in normal type. A further increase in ignitability. (0.8 → 0.9mm)
・  For motorcycles such as Yamaha and Kawasaki, also for Ferarri, Maserati, and Alfa Romeo.
IU-A series
IU24A. IU27A. IU31A
・  10mm dia. X L19mm length fully threaded slant ground electrode type.
・  Harnessing the low required voltage of the 0.4mm dia. iridium, the gap is wider than in normal type (0.7 → 0.9mm). Ignitability is greatly increased.
・  By making this a single electrode, the spark location is stabilized compared to in normal types (double ground electrode), securing an ideal combustion condition.
IUH series
IUH24. IUH27
・  10mm dia. X L19mm length half-threaded type.
・  Using the high heat resistance of the iridium electrode, the spark position is extended 0.4mm compared to standard types (1.6 → 2.0mm)
・  Use only with Honda
IUF series
IUF22. IUF24. IUF14-UB
・  10mm dia. X L12.7mm length short reach type.
・  Using the high heat resistance of the iridium, the spark position is extended 0.4mm compared to standard types (1.6 → 2.0mm)
・  Harnessing the low required voltage of the 0.4mm dia. iridium, the spark gap is wider than in normal types (0.7 → 0.8mm). Ignitability is greatly increased.
IUF-A series
IUF27A. IUF31A
・  10mm dia. X L12.7mm length short type.
・  Ideal for Gorilla/ Monkey Racing.
・  The ground electrode has a slant shape, reducing the thermal stress on it.
IY series
IY24. IY27. IY31
・  8mm dia. X L19mm length tapered seat, half thread type.
・  The world's first 8mm thread diameter iridium plug.
・  Can be used with Honda Smart Dio ('04-), VFR400, RVF400, Kitaco Monkey Head, and NR750.


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