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Denso Iridium Spark Plug

Ultra-fine .4mm diameter electrode requires less voltage and increases performance.
Tapered Cut electrode reduces quenching, improving firing performance.
U-Groove maintains a large volume of space to form the nucleus of the flame.
360 degree laser welding process provides a seal so reliable that even in the harshest conditions, the electrode resists wear.

All Acura Denso Iridium Spark Plugs
View All Acura Integra Spark Plugs
Acura IntegraPrice
ALL NON VTEC Exlcuding 88-89$12.40  Add to Cart
ALL VTEC 92+$10.83  Add to Cart
stock heat range$10.83  Add to Cart
View All Acura Legend Spark Plugs
Acura LegendPrice
All Legend$10.83  Add to Cart
View All Acura NSX Spark Plugs
Acura NSXPrice
All NSX$10.83  Add to Cart
View All Acura RSX Spark Plugs
Acura RSXPrice
ALL NON TYPE S$10.83  Add to Cart
ALL TYPE S$12.40  Add to Cart
View All Acura TL Spark Plugs
Acura TLPrice
ALL YEARS ALL MOTORS$12.40  Add to Cart
All Audi Denso Iridium Spark Plugs
View All Audi A4 Spark Plugs
Audi A4Price
(1996-2001) 1.8T, 2.8L$10.83  Add to Cart
View All Audi A6 Spark Plugs
Audi A6Price
ALL excluding V8$10.83  Add to Cart
View All Audi S4 Spark Plugs
Audi S4Price
All S4$10.83  Add to Cart
View All Audi TT Spark Plugs
Audi TTPrice
All motors$10.83  Add to Cart
All BMW Denso Iridium Spark Plugs
View All BMW 325i Spark Plugs
BMW 325iPrice
(1989) stock heat range$12.40  Add to Cart
View All BMW M3 Spark Plugs
BMW M3Price
(1993-1995) two heat ranges colder$12.23  Add to Cart
(2001-2006) IXU27$18.50  Add to Cart
Stock Heat Range (IXU24)$17.52  Add to Cart
All Dodge Denso Iridium Spark Plugs
View All Dodge 3000GT Spark Plugs
Dodge 3000GTPrice
Spark Plug$12.23  Add to Cart
One heat range colder$12.40  Add to Cart
View All Dodge Colt Spark Plugs
Dodge ColtPrice
(1985-1988) 1.6L Turbo$10.83  Add to Cart
1.6L Turbo$10.83  Add to Cart
All Ford Denso Iridium Spark Plugs
View All Ford Explorer Spark Plugs
Ford ExplorerPrice
5.0L$12.40  Add to Cart
View All Ford Mustang Spark Plugs
Ford MustangPrice
stock heat range$12.40  Add to Cart
All Honda Denso Iridium Spark Plugs
View All Honda Accord Spark Plugs
Honda AccordPrice
96-97 4 Cyl$10.83  Add to Cart
96-97 6 cyl$12.40  Add to Cart
98-02$12.40  Add to Cart
98-02 All$12.40  Add to Cart
View All Honda Civic Spark Plugs
Honda CivicPrice
(1988-1991) All$12.40  Add to Cart
(1992-2000) ALL SOHC$12.40  Add to Cart
(2001-2005) Spark Plug$10.83  Add to Cart
(2002-2005) SI$12.40  Add to Cart
View All Honda Civic Del Sol Spark Plugs
Honda Civic Del SolPrice
All DOHC 92-97m VTEC$10.83  Add to Cart
All SOHC 92-97$12.40  Add to Cart
View All Honda CR-V Spark Plugs
Honda CR-VPrice
CRV All B20$12.40  Add to Cart
View All Honda CRX Spark Plugs
Honda CRXPrice
88-91 ALL$12.40  Add to Cart
View All Honda Prelude Spark Plugs
Honda PreludePrice
All non VTEC$12.40  Add to Cart
ALL VTEC 92+$10.83  Add to Cart
View All Honda S2000 Spark Plugs
Honda S2000Price
All S2000$12.40  Add to Cart
one heat range colder$12.23  Add to Cart
All Mazda Denso Iridium Spark Plugs
View All Mazda Protege Spark Plugs
Mazda ProtegePrice
Mazdaspeed, Stock heat range$10.83  Add to Cart
All Mini Denso Iridium Spark Plugs
View All Mini Cooper Spark Plugs
Mini CooperPrice
One heat range colder$12.40  Add to Cart
stock heat range$10.83  Add to Cart
All Mitsubishi Denso Iridium Spark Plugs
View All Mitsubishi Eclipse Spark Plugs
Mitsubishi EclipsePrice
(1995-1999) Turbo - One heat range colder$12.40  Add to Cart
View All Mitsubishi EVO Spark Plugs
Mitsubishi EVOPrice
(2003-2005) Spark Plug$10.83  Add to Cart
(2006) Evo 9, One heat range colder$12.23  Add to Cart
(2006-2008) Evo 9, Three heat ranges colder$12.23  Add to Cart
(2006) Turbo - One heat range colder$12.40  Add to Cart
View All Mitsubishi Mirage Spark Plugs
Mitsubishi MiragePrice
(1985-1988) 1.6L Turbo$10.83  Add to Cart
All Nissan Denso Iridium Spark Plugs
View All Nissan 240SX Spark Plugs
Nissan 240SXPrice
L4 - 2.4L - FI - KA24DE$12.40  Add to Cart
SR20DET$12.40  Add to Cart
View All Nissan 350Z Spark Plugs
Nissan 350ZPrice
(2003-2006) Stock Heat Range$10.83  Add to Cart
All Subaru Denso Iridium Spark Plugs
View All Subaru Impreza Spark Plugs
Subaru ImprezaPrice
2.5RS$10.83  Add to Cart
View All Subaru WRX Spark Plugs
Subaru WRXPrice
(2002-2004) One heat range colder (excluding the 04 STi)$12.40  Add to Cart
Stock Heat Range (excluding the 04 STi)$10.83  Add to Cart
All Toyota Denso Iridium Spark Plugs
View All Toyota Matrix Spark Plugs
Toyota MatrixPrice
(2002 and up) 2WD STD/XR$12.40  Add to Cart
View All Toyota MR2 Spark Plugs
Toyota MR2Price
(1991-1995) Non-Turbo 5SFE$12.40  Add to Cart
View All Toyota Supra Spark Plugs
Toyota SupraPrice
(1986-1992) 7MGTE - Stock Heat Range$12.40  Add to Cart
7MGTE - two heat ranges colder$12.40  Add to Cart
N/A only$12.23  Add to Cart
(1993-1998) Four Heat ranges colder$17.61  Add to Cart
one heat range colder$12.40  Add to Cart
stock heat range (5304)$10.83  Add to Cart
three heat ranges colder$12.23  Add to Cart
two heat ranges colder$12.23  Add to Cart
All Volkswagen Denso Iridium Spark Plugs
View All Volkswagen Jetta Spark Plugs
Volkswagen JettaPrice
VR6$10.83  Add to Cart
View All Volkswagen Passat Spark Plugs
Volkswagen PassatPrice
All Passat all motors$10.83  Add to Cart
 
Denso Iridium Spark Plug Reviews
  (9.2 of 10) 17 Reviews    Write Review
RatingDateModelReview
1009/14/2012M3HARD TO FIND IN TEXAS But they work great in my application?
903/26/2011SupraThese are a solid plug choice for a BPU Supra. I would purchase Denso Iridiums again. Very smooth engine revs and performance from the infamous I-6 turbo.
1001/20/2010SupraMuch better gas miles, a lil more kick on the top end of the revs
1012/12/2009Suprathe plugs work great and helped with my running rich problem a bit. i also bought magnacore plug wires as well to help my ignition. was very fast delivery and quality product. i will be shopping with HPF again for sure
911/02/2009EVO
803/24/2007SupraMade my car run alot smoother throught the rpm range.
902/08/2007SupraNice product..!
910/28/2006Supragreat product
1006/10/2006SupraExpensive,but.superior.spark.plugs
1006/09/2006SupraThe best plugs I've tried so far.
1001/25/2006SupraTHERE HAS BEEN NO NOTICIBLE DIFFERENCE IN RUNABLITY ON THE STREET. I AM LOOKING FORWARD TO PUTTING THE BOOST TO THE ENGINE.
17 Reviews

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Parts Available: IK16, IK20, IK20, IK20, IK20, IK20, IK22, IK16, IK20, IK20, IK20, IK20, IW16, IK24, IXU27, IXU24, IK24, IK22, IW22, IW24, IT16, IT16, IK20, IK16, IK16, IK16, IQ20, IK16, IK20, IK22, IK20, IK16, IK16, IQ20, IK16, IK20, IK22G, IK24, IK20, IK22, IK20, IK22, IW22, IKH24, IKH27, IK22, IW22, IK16, IK22, IKH22, IK20, IK22, IK20, IK16, IK16, IQ20, IQ24, IQ16, IK31, IK22, IK20, IK27, IK24, IK20, IK20