DENSO Spark Plugs - DENSO Global Website

1 DENSO Spark Plugs Discovering DENSO TechnologyDENSO Spark Plugs DENSO Spark Plugs DENSO Spark Plugs DENSO Spark Plugs DENSO Spark Plugs DENSO Spark Plugs DENSO Spark Plugs DENSO Spark Plugs DENSO Spark Plugs DENSO Spark Plugs DENSO Spark Plugs DENSO Spark Plugs DENSO Spark Plugs DENSO Spark Plugs DENSO Spark Plugs DENSO Spark Plugs DENSO Spark Plugs DENSO Spark Plugs DENSO in Europe DENSO aftermarket Europe is part of DENSO Corporation, one of the world s Top 3 manufacturers of advanced automotive technology, systems and components. founded in 1949 DENSO is a pioneer of quality products for the automotive industry, supplying a huge range of original equipment to every major vehicle manufacturer in the world.

2 In fact you ll fi nd original DENSO parts in nine out of ten cars on the are also proud to bring that unique expertise to the European independent aftermarket. Our technologically advanced programmes feature only OE specifi cation products especially selected for distributor and end-user customers. We manage that supply directly through DENSO aftermarket Europe, supported by a growing network of local aftermarket sales offi Plugs are one of DENSO s main specialisms. Our continual Research & Development work has led to many of the sector s most important innovations, including U-groove technology and the world s smallest Iridium tip.

3 As a major sponsor and technical partner of Toyota Motor Corporation s formula 1 team, the Honda LCR MotoGP team, the Subaru World Rally Team and other motorsports we also know all about high performance; passing on that experience in our Iridium and Racing ranges. So with a Spark Plug to suit every application and motoring need, you can rely on DENSO . DENSO THE afTERMaRKET ORIGINaLS | 03 The Aftermarket OriginalsDENSO Spark Plugs03 DENSO in Europe> The aftermarket Originals 04 Introduction> about This Publication05 Product Range0 Spark Plugs > Plug Confi gurations08 Standard Spark Plugs11 Case Study and Key advantages09 advantages in Detail10 Characteristics12 Iridium Power15 Case Study and Key advantages13 advantages in Detail14 Characteristics1 Line-up18 Specifi cations20 Iridium Tough23 Case Study and Key advantages21 advantages in Detail22 Characteristics24 additional advantages25 Specifi cations2 Iridium Racing29 Case

4 Study and Key advantages2 advantages in Detail28 Characteristics30 Choosing a Racing Plug31 Specifi cations32 Cross References34 DENSO Spark Plug Identifi cation3 Spark Plug Installation3 DENSO OE and aM Plugs > Differences3 DENSO Spark Plugs > fault analysis38 Special Road Conditions> Selecting the Right PlugTable of ContentsDENSO Spark Plugs This Spark Plug Manual from DENSO Aftermarket Europe aims to provide distributors, wholesalers and end-users with everything you need to know about our unique, OE specifi cation Spark Plugs . From technical data and application guides to case studies and visuals about each range, you ll have all the information you has been setting the standard for Spark plug technology since 1959.

5 We develop all of our ranges in-house, and manufacture them in our own QS 9000 and ISO 9000 certifi ed factories worldwide with zero defects as standard. We also provide this outstanding OE quality to the aftermarket. Including Standard, Platinum and Iridium, DENSO Spark Plugs cover a complete range of continually updated references. Guaranteeing optimum engine performance, choose DENSO Spark Plugs for every automotive, motorcycle, marine and small engine application. STANDARDC opper glass seal helps heat dissipationStandard U-grooveDeeply inserted copper coreHeat resistant nickel platingDOUBLE PLATiNUM (LONGLiFE), SiNGLE PLATiNUM (ZU)Improved, more reliable startMore complete combustion (lower emissions)

6 Improved ability to overcome tuning imperfectionsSuperior throttle response and acceleration Race proven technologyiRiDiUM LONGLiFE, iRiDiUM TOUGh, iRiDiUM POWERS uperb ignitabilityLow required voltageBetter acceleration response and operational stabilityLower fuel consumptionLonger lifetimeiRiDiUM RACiNGF1 technologyUltimate accelerationHigh reliabilityBoosted performance>>>>>>>>>>>>>>>>>>Introductio nDENSO Spark PlugsAbout this Publication04 | DENSO abOUT THIS PUbLICaTIONI ridium RacingIridium PowerPlatinumStandardIridium ToughPlatinumIridium RacingIridium ToughIridium PowerPlatinumStandardTypeStandardSingle PlatinumDouble PlatinumTypeiridium OEM Type5iridium Long LifeType5 iridium Toughiridium Racingiridium Power1 Spark plug types without a U in the type name do not have a U-groove2 Not

7 Applicable to IU24a, IU2 a, IU31a, IUf2 a and IUf31a3 Spark plug types with a Z in the type name have a tapered cut ground electrode4 Except for surface gap types5 OEM Types, only for specifi c vehiclesSpecifi cationsU-groove + 1 + - - - + 2 - -Tapered cut some types 3 + - - - + 2 - - ground electrodeMaterial ground ground Normal Normal Platinum Platinum Platinum Normal Platinum fullelectrode tipped tipped tipped tipped platinumCentre electrode 2,5 mm 0, mm 1,1 mm 0, mm 0,4 mm 0,4 mm 0,4 mm 0,4 mm 4 Available heat range 9 - 2 14 - 34 1 - 22 1 - 22 1 - 2 1 - 34 1 - 24 24 - 35 Resistor Most types Most types all types all types all types all types all types all typeshigh performance + +++ ++ ++++ ++++ +++++ +++++ +++++Fuel saving Good better better best best best best - Life time Standard Standard Long life Long life Long life Standard Long life for racing onlySingle PlatinumDouble PlatinumTypeiridium OEM Typeiridium Racingiridium ToughStandardPlatinumiridiumProduct RangeThe DENSO Spark Plug family comprises three core product ranges: Standard, Platinum and iridium.

8 Each offers a choice of different specifi cations providing individual applications and performance PRODUCT RaNGE | 05 Example U20 FSR-UExample U27 ESR-NResistor PlugExample W27 EMR-CExample U27 FER9 Example U31 ETR X24 EPR-U9 Example X24 GPR-UMotorcycle PlugsExample XU22 EPR-UExample QL20PR-U/QL20TR-SExample T16 EPR-UExample K16-RU11K/K16PR-U11 Example Q16R-U11/Q16PR-U11 Small Plug for Small CarsLong Housing PlugsTaperSeat plugISO Compatible Small Hex PlugSmall Hexagonal PlugExample W20 ETR-S11 Example K20 DTR-S11/W20 DTR-S11 Example W9LM-USExample W20 EKR-S11/W20 EPR-S11 Example J16 AYSemi-Surface Double Electrode PlugShrouded Semi-Surface Gap Double Electrode PlugStar Centre ElectrodeSemi-Surface Gap Plug5k resistor added between the centre electrode and the centre electrode coreReduces radio noise during ignition(Most new cars now come as standard with resistor Plugs )

9 ---Reduced Radio NoiseResistorExample W16EX-UExample K22PB/W20 EPBU-Grooved PlugTriple Electrode PlugTriple ground electrodesIncreased durabilityFor Audi, VW, Citro n, Fiat, Mercedes-Benz, Renault---Di FFERENT RANGES i N ThE DENSO Spark P LUG PROGRAMME The following overview summarises the different plug configurations in the DENSO Spark Plug programme, making it easier to choose the right plug for each application. U-groove ground electrode delivers high ignition energyEasily ignites even lean mixturesFully projected ( insulator projection) so reduces carbon foulingStarts smoothly and good acceleration performance----By reducing hex size (16mm) the plug has been made smaller>-Thread has 3mm shroud and 22mm reachExclusively for Honda--10mm diameter x 19mm length, fully threadedBy making projection greater, fouling resistance has been improvedExclusively for Kawasaki, Suzuki and Yamaha>---Compatible with ISO standardsTake care with installation.

10 Installed height is shorter than with Q type>--12mm diameter x 19mm length-10mm diameter x length>-By reducing hex size (16mm) the plug becomes compatible with small carsThread size 12mm>--Plug with a compact insulator headExclusively for Suzuki and Honda>--By making the middle cylinder longer, installation dimensions have been securedQL20TR-S has double ground electrodes and a semi-surface gap for improved anti-foulingExclusively for Daihatsu>---10mm diameter x 19mm length, half-threadedWider gap ( ) than conventional Plugs ( to ) creating improved ignitabilityExclusively for Honda>---Solely for non-Japanese vehicles that do not have a gasket-Double ground electrodes for improved heat resistanceExclusively for Kawasaki and Suzuki>--Exclusively for DaihatsuTwo ground electrodes ensure durability--Semi-surface discharge increases ignitability and fouling resistanceW20 EKR-S11 for Honda vehicleW20 EPR-S11 for Mitsubishi vehicles---Double ground electrode with 1mm gapShort.