A. Terminal-Attachment Specifications
The plug includes an attachable terminal, which is compatible with almost all plug wires throughout the world. This terminal nut can also be removed for vehicles, which do not require an attachable terminal. (Plug types with fixed terminal are also available.)
Crimped specifications: IRE01, IW01 Fixed specifications: IWM01, IK01, IK02, IQ01, IQ02, IA01

B. Built-in High-Reliability Resistor
Iridium Racing plug specifications match all types of resistors. They also have a built-in monolithic resistor body for greater reliability. They reduce electrical interference in all types of electronic equipment.

C. Anti-Corrosive Glossy Nickel Plating
The housing has glossy nickel plating to provide a high level of corrosion resistance. In addition, this eliminates thread seizing, which can occur with zinc-plated plugs, and prevents any damage to the cylinder head plug socket.

 

 

 

Racing Plugs Individually Packaged in Plastic Cases
DENSO is the first spark plug manufacturer to package each plug individually in its own protective plastic case. The packaging securely protects the plug body and electrode and makes for trouble-free transportation to the track. In addition, each four–pack contains an Iridium Racing decal.

Number Stock No. Thread Diameter (mm) Thread Reach
(mm)
Hex Size
(in)
Gap
(mm)
Insulator
Projection
(mm)
IA01-31#4 5723 14 22 5/8 0.6 -1.0
IA01-32#4 5724 14 22 5/8 0.6 -1.0
IA01-34#4 5725 14 22 5/8 0.6 -1.0
IAE01-32#4 5747 14 19 5/8 0.6 -1.3
IAE01-34#4 5748 14 19 5/8 0.6 -1.3
IK01-24#4 5701 14 19 5/8 0.7 -1.0
IK01-27#4 5702 14 19 5/8 0.7 -1.0
IK01-31#4 5703 14 19 5/8 0.7 -1.0
IK02-24#4 5704 14 19 5/8 0.7 -2.3
IK02-27#4 5705 14 19 5/8 0.7 -2.3
IK01-34#4 5706 14 19 5/8 0.7 -2.3
IK02-31#4 5742 14 19 5/8 0.7 -1.0
IKH01-24#4 5749 14 26.5 5/8 0.7 -1.0
IKH01-27#4 5750 14 26.5 5/8 0.7 -1.0
IKH01-31#4 5751 14 26.5 5/8 0.7 -1.0
IQ01-24#4 5707 14 19 5/8 0.7 -1.0
IQ01-27#4 5708 14 19 5/8 0.7 -1.0
IQ01-31#4 5709 14 19 5/8 0.7 -1.0
IQ01-34#4 5743 14 19 5/8 0.7 -1.0
IQ02-24#4 5710 14 19 5/8 0.7 -2.3
IQ02-27#4 5711 14 19 5/8 0.7 -2.3
IQ02-31#4 5712 14 19 5/8 0.7 -2.3
IRE01-27#4 5719 14 21.5 13/16 0.7 -2.2
IRE01-31#4 5720 14 21.5 13/16 0.7 -2.2
IRE01-32#4 5721 14 21.5 13/16 0.7 -2.2
IRE01-34#4 5722 14 21.5 13/16 0.7 -2.2
IRE01-35#4 5741 14 21.5 13/16 0.7 -2.2
IRT01-31#4 5752 14 19 13/16 1.1 -2.5
IRL01-31#4 5755 57 21 13/16 1.1 -2.5
IRT01-34#4 5753 14 19 13/16 1.1 -2.5
IRL01-27#4 5754 14 21 13/16 1.1 -2.5
IU01-24#4 5734 10 19 5/8 0.6 -1.8
IU01-27#4 5735 10 19 5/8 0.6 -1.8
IU01-31#4 5736 10 19 5/8 0.6 -1.8
IU01-34#4 5737 10 19 5/8 0.6 -1.8
IW01-24#4 5713 14 19 13/16 0.6 -1.5
IW01-27#4 5714 14 19 13/16 0.6 -1.5
IW01-29#4 5715 14 19 13/16 0.6 -1.5
IW01-31#4 5716 14 19 13/16 0.6 -1.5
IW01-32#4 5717 14 19 13/16 0.6 -1.5
IW01-34#4 5718 14 19 13/16 0.6 -1.5
IW06-27#4 5744 14 19 13/16 0.6 -1.5
IW06-31#4 5745 14 19 13/16 0.6 -1.5
IW06-34#4 5746 14 19 13/16 0.6 -1.5
IWM01-29#4 5726 14 19 13/16 0.6 -1.5
IWM01-31#4 5727 14 19 13/16 0.6 -1.5
IWM01-32#4 5728 14 19 13/16 0.6 -1.5
IWM01-34#4 5729 14 19 13/16 0.6 -1.5
IXU01-24#4 5730 12 19 5/8 0.6 -1.5
IXU01-27#4 5731 12 19 5/8 0.6 -1.5
IXU01-31#4 5732 12 19 5/8 0.6 -1.5
IXU01-34#4 5733 12 19 5/8 0.6 -1.5
RU01-27#4 5738 10 19 5/8 1.1 -0.3
RU01-31#4 5739 10 19 5/8 1.1 -0.3
RU01-34#4 5740 10 19 5/8 1.1 -0.3
 

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