03/04/2026
🚀DENSO Spark Plugs Catalogue 2022 – The Professional's Guide to Ignition Excellence
👉The DENSO Spark Plugs Catalogue 2022 is a comprehensive technical reference for automotive professionals, workshops, and enthusiasts seeking the correct spark plug for virtually any vehicle. As a leading global supplier of original equipment (OE) spark plugs, DENSO's catalogue delivers precise application data backed by decades of ignition engineering expertise .
⚙️Catalogue Update Schedule:
DENSO's catalogues and compatibility charts are updated and released once per year. The 2022 edition was last updated in July 2022, featuring comprehensive vehicle coverage for passenger cars, trucks, and motorcycles .
⚙️Product Lines Featured in the Catalogue:
👉Series Technology Key Feature
Iridium Power 0.4mm iridium center electrode Hottest, most concentrated spark; requires lowest voltage
Iridium TT Twin-tip design (iridium center + iridium ground) Revolutionary double-iridium construction; improved fuel efficiency
Iridium Racing 0.4mm Iridium-Rhodium center + pure platinum ground electrode Extreme durability for racing conditions; 360° laser welding
Iridium Tough OE-grade iridium construction Maximum durability for extended service intervals
Iridium PLUS Standard iridium upgrade Cost-effective iridium performance
U-Groove Patented U-shaped ground electrode Standard nickel plug with improved ignitability
⚙️Understanding DENSO Part Numbers:
👉DENSO spark plug codes contain letters and numbers that specify all critical features :
👉Code Position Meaning Example
Prefix Precious metal type (S, SV, F, P) SV = 0.4mm iridium
Thread/Hec Thread diameter and hex size K = 14×16.0mm (ISO small hex)
Heat Range Thermal characteristics (16, 20, 22, 24, 27, 29, 31, 32, 34, 35) 20 = medium heat range
Reach Thread length H = 26.5mm long reach
Shape Electrode configuration R = with resistor
Gap Spark gap in mm (-8, -10, -11) 11 = 1.1mm gap
⚙️Heat Range Cross-Reference:
👉DENSO NGK Champion Application
16 5 12/11 Cold (high performance)
20 6 10/9 Standard
22 7 8/7 Hot (older engines)
24 8 6/63/61 Hotter
27 9 4/59 Hottest
⚙️Series Configuration Guide:
👉Series Thread Reach Applications
IK Series 14mm 19mm Standard cars, ISO type
IKH Series 14mm 26.5mm Subaru, Nissan, Peugeot, Citroen
IT Series 14mm 17.5mm GM, Ford, Mercedes, Audi (tapered seat)
IW Series 14mm 19mm Fully threaded, universal
IU Series 10mm 19mm Motorcycles (Yamaha, Kawasaki) and Ferrari
IX Series 12mm 19mm Small cars, Ducati motorcycles
IY Series 8mm 19mm Honda scooters and small engines
⚙️Important Warnings from the Catalogue:
👉Restriction Reason
NO aircraft use DENSO spark plugs are NOT designed for any aircraft (airplanes, helicopters, drones); use may cause engine failure and crashes
NO generator use Not for generators, gas heat pump AC systems, or co-generation unless specially designed
NO gas burner ignition Not designed for gas burner ignition applications
Special vehicles Use genuine plugs for ambulances, police cars, and emergency vehicles
⚙️How to Access the Catalogue:
👉DENSO offers multiple access methods :
· Online Part Finder: Search by vehicle make, model, and year at DENSO's regional websites
· Printed Catalogue: Available for workshop reference
· Digital Download: Updated compatibility information released annually
· Regional Support: Contact local DENSO representatives for country-specific applications
⚙️Coverage Includes:
· Passenger cars (Toyota, Nissan, Honda, Subaru, Mazda, etc.)
· European vehicles (VW, BMW, Mercedes, Peugeot, Citroen, Renault, Fiat)
· American vehicles (GM, Ford, Chrysler)
· Korean vehicles (Hyundai, Kia)
· Motorcycles and powersports
· Marine applications
For accurate, reliable, and up-to-date ignition component selection, the DENSO Spark Plugs Catalogue 2022 remains the essential reference for the automotive aftermarket .