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DENSO IU27A IRIDIUM (CR9EK,PA)

Product Code: IU27A

Quick overview
IU27A IRIDIUM (CR9EK,PA)

IRIDIUM POWER SPARK PLUGS

For riders that care about performance.By using a 0.4mm diameter iridium alloy center electrode and a special ground electrode, IRIDIUM POWER realizes spark performance unseen until now.It steadily gives a high level of response under a variety of driving conditions. The result? Increased acceleration and torque compared to regular plugs.

Speci?cations Include:
*A terminal nut is attached that fits with most of the world’s spark plug cables. Please remove the nut for installations that do not require one. (The terminal nuts on the IWM and IK-G types are solid parts and cannot be removed.)Built-in, Highly Reliable Resistor
*All IRIDIUM POWER plugs include a highly reliable, 5,000 ohm monolithic resistor specification to reduce electromagnetic noise that may affect electronic devices. (For all plug types)
*Highly Corrosion Resistant, Burnished Nickel PlatingThe plug housing is plated with burnished nickel, the same as plugs used for racing. It is highly resistant to corrosion and rust even while touring in continually rainy weather and during motocross events. (Low-heat range types excluded)
*360° Laser WeldingThe process used to mount the iridium tip is a highly reliable “All-around Laser Welding” process that is able to withstand all kinds of driving conditions. (For all plug types)
*Projected Center ElectrodeIn order to improve ignitability, the center electrode protrudes more than with conventional type plugs. This improves both acceleration response time and performance.(Only with: IU31, IUH24, IUH27, IX22, IX24, IX27, IUF22, IUF24, IWF22, IWF24, IWF27, IW24, IW27, IW29, IW31, and IW34)
*0.4 mm Diameter Ultra-?ne Iridium Center ElectrodeUsing a new iridium alloy with a very high melting point, the tip of the electrode can be made very fine. This enables the reduction of voltage necessary to cause the spark, and greatly improves ignitability. Moreover, the special iridium alloy used was developed by DENSO
*Taper-cut Ground ElectrodeThe tip of the ground electrode is cut to a fine taper to reduce the adverse effects of quenching, which greatly improves fuel ignitability. Also, because of the streamlined, taper-cut shape, the fuel-air mixture spreads more evenly in the gap, resulting in steady, reliable igniting of combustion.(excluding IUF27A, IUF31A, IU24A, IU27A, IU31A, IY24, IY27 & IY31)
*U-Groove Ground ElectrodeThe U-shaped groove on the ground electrode insures that the inside surface area is large enough to generate the flame kernel. This shape enables lower voltage needed to cause the spark and results in excellent ignitability without increasing the size of the spark gap. (excluding IUF27A, IUF31A, IU24A and IU31A)
*Insulator ProjectionThe projection of the insulator is optimally designed based on each plug's thermal value. This corresponds to requirements unique to thermal value, such as self-cleaning ability at lower thermal values, and heat resistance at higher thermal values. (For all plug types)





Description
IU27A IRIDIUM (CR9EK,PA)

IRIDIUM POWER SPARK PLUGS

For riders that care about performance.By using a 0.4mm diameter iridium alloy center electrode and a special ground electrode, IRIDIUM POWER realizes spark performance unseen until now.It steadily gives a high level of response under a variety of driving conditions. The result? Increased acceleration and torque compared to regular plugs.

Speci?cations Include:
*A terminal nut is attached that fits with most of the world’s spark plug cables. Please remove the nut for installations that do not require one. (The terminal nuts on the IWM and IK-G types are solid parts and cannot be removed.)Built-in, Highly Reliable Resistor
*All IRIDIUM POWER plugs include a highly reliable, 5,000 ohm monolithic resistor specification to reduce electromagnetic noise that may affect electronic devices. (For all plug types)
*Highly Corrosion Resistant, Burnished Nickel PlatingThe plug housing is plated with burnished nickel, the same as plugs used for racing. It is highly resistant to corrosion and rust even while touring in continually rainy weather and during motocross events. (Low-heat range types excluded)
*360° Laser WeldingThe process used to mount the iridium tip is a highly reliable “All-around Laser Welding” process that is able to withstand all kinds of driving conditions. (For all plug types)
*Projected Center ElectrodeIn order to improve ignitability, the center electrode protrudes more than with conventional type plugs. This improves both acceleration response time and performance.(Only with: IU31, IUH24, IUH27, IX22, IX24, IX27, IUF22, IUF24, IWF22, IWF24, IWF27, IW24, IW27, IW29, IW31, and IW34)
*0.4 mm Diameter Ultra-?ne Iridium Center ElectrodeUsing a new iridium alloy with a very high melting point, the tip of the electrode can be made very fine. This enables the reduction of voltage necessary to cause the spark, and greatly improves ignitability. Moreover, the special iridium alloy used was developed by DENSO
*Taper-cut Ground ElectrodeThe tip of the ground electrode is cut to a fine taper to reduce the adverse effects of quenching, which greatly improves fuel ignitability. Also, because of the streamlined, taper-cut shape, the fuel-air mixture spreads more evenly in the gap, resulting in steady, reliable igniting of combustion.(excluding IUF27A, IUF31A, IU24A, IU27A, IU31A, IY24, IY27 & IY31)
*U-Groove Ground ElectrodeThe U-shaped groove on the ground electrode insures that the inside surface area is large enough to generate the flame kernel. This shape enables lower voltage needed to cause the spark and results in excellent ignitability without increasing the size of the spark gap. (excluding IUF27A, IUF31A, IU24A and IU31A)
*Insulator ProjectionThe projection of the insulator is optimally designed based on each plug's thermal value. This corresponds to requirements unique to thermal value, such as self-cleaning ability at lower thermal values, and heat resistance at higher thermal values. (For all plug types)





Product Code

IU27A

This product will suit the bikes listed below.
MakeModelYear
APRILIARSV4 Factory2011,2012,2013,2014,2015,2016
BIMOTA1000 SB8K Santamonica2006
BIMOTASB71994,1995,1996
BMWG450X2009,2010,2011,2012
KAWASAKIZ10002003,2004,2005,2006
KAWASAKIZ7502004,2005,2006,2007,2008,2009,2010
KAWASAKIZRX1200 Daeg2009
KAWASAKIZRX1200R2007,2008
KAWASAKIZRX12002001,2002,2003,2004,2005,2006
KAWASAKIZX12R Ninja2000,2001,2002,2003,2004,2005,2006
KAWASAKIZX9R Ninja1994,1995,1996,1997,1998,1999,2000,2001,2002,2003
KAWASAKIZRX11001996,1997,1998,1999,2000
KAWASAKIZXR400R1989,1990,1991,1992,1993,1994,1999
KAWASAKIGPZ11001995,1996,1997,1998
KAWASAKIGPZ1100 ABS1997
KAWASAKIZXR4001990
KTM250 EXC-F2007,2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018
KTM250 SX-F2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019
KTM250 XC-F2007,2008,2009,2011,2012,2013,2014,2015,2016,2017,2018
KTM450 SX-F2007,2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018
KTM250 XCF-W2006,2007,2008,2009,2010,2012,2013,2014,2015,2016,2016,2017
KTM450 SMR2008,2009,2010,2011,2012,2013,2014
KTM505 SX ATV2009,2010,2011,2012
KTM505 SX ATV2008,2009,2010,2011,2012,2013
SUZUKIGSXR7501992
SUZUKIGSX600F Katana1988,1989,1990,1991,1992,1993,1994,1995,1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006
SUZUKIGSF600 Bandit1995,1996,1997,1998,1999,2000,2001,2002,2003,2004
SUZUKIGSF600 Bandit S1995,1996,1997,1998,1999,2000,2001,2002,2003,2004
SUZUKIDR3501994,1995,1996,1997,1998,1999,2000
SUZUKIGSXR750W1993,1994,1995
TRIUMPHStreet Triple R 6752007,2008,2009,2009,2010,2010,2011,2011,2012,2012,2013,2014,2015,2016,2017,2018
TRIUMPHDaytona 675R2011,2012,2013,2014,2016,2017
TRIUMPHDaytona 6752006,2007,2008,2009,2010,2011,2012,2013,2014,2016
TRIUMPHStreet Triple 6752007,2008,2009,2010,2011,2012,2013,2014,2015,2016
TRIUMPHTiger 10502005,2006,2007,2008,2009,2009,2010,2011,2012,2013
TRIUMPHSpeed Triple 10502005,2006,2007,2008,2009,2010,2011,2012
TRIUMPHSprint ST2005,2006,2007,2008,2009,2010,2011
TRIUMPHDaytona 955i2002,2003,2004,2005,2006
TRIUMPHTT6002000,2001,2002,2003,2004,2005
TRIUMPHDaytona 6002003,2004
TRIUMPHTIGER SPORT 6602022
TRIUMPHTRIDENT 6602021,2022
YAMAHAWR250R2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019
YAMAHAYZF R12004,2005,2006,2007,2008
YAMAHAFZ1 Fazer2006,2007,2008,2009,2010,2011,2012,2013,2014,2015