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Iridium Power
Example: IK16
• With an Ultra-fine Iridium Alloy Center Electrode Employing a high melting point iridium alloy for the center electrode tip, a fine diameter of 0.4mm has been realized. This fine electrode has led to a lower spark voltage and a large increase in ignitability, which draws even more output and accelerator response from the engine. (Melting Point: Iridium: 2454º C, Platinum: 1769º C).


Iridium Long Life
Example: SK16R-P11, SK20R11, FK20HR11

• Developing the world’s pioneering 0.7mm dia. Ultra-fine Iridium alloy, ignitability and lifetime are improved dramatically.


U-Groove
Example: W16EX-U

• With a U-Groove ground electrode, large ignition energy can be obtained, easily igniting even lean mixtures.
• Because it is fully projected (2.5mm insulator projection), carbon fouling is reduced, and smooth starting and acceleration performance are realized.

Iridium TT
Example: 1W16TT

• Iridium TT Twin-Tip Technology was developed from the Original Equipment Specification Super Ignition Plug (SIP) design, fusing our patented 0.4mm diameter Iridium- Rhodium alloy Center Electrode with an OE style 0.7mm Platinum Tip Ground Electrode.
• Combines the power and torque of a high performance plug with the endurance of a long life original equipment spark plug over 100,000 miles.

Platinum TT
Example: PW16TT

• Platinum TT Twin-Tip Technology enables faster flame propagation
for more complete combustion.
• 1.1mm PT Center Electrode with a Titanium-Enhanced Tip
Ground Electrode.
• Improved Fuel Economy, better acceleration and faster starts.

Double Platinum
Example: PK20R11

• Platinum is used in both the center electrode and the ground electrode.
• By making the center electrode (1.1mm dia) and by using a platinum tip, fuel consumption, drivability, and durability have been increased.

Extended Platinum
Example: PKJ20CR-L11

• By extending the spark position into the combustion chamber, the combustion efficiency is increased and fuel consumption and drivability are improved.

Dual Electrode Platinum Example: PK20TR11
• The parts of the center electrode facing the ground electrodes have been platinum tipped.
• The dual electrode construction results in a lower required voltage during the plus (+) discharge.

Single Platinum
Example: Q20PR-P11, K16PR-TP11

• Only the center electrode is platinum tipped (1.1mm dia) which increases fuel consumption, drivability, and durability
• K16PR-TP11 has had the ground electrode taper cut, further increasing ignitability.

Semi-Surface Gap for Rotary Engines
Example: J16AR-U11

• Employing a semi-surface gap discharge, ignitability, fouling resistance, and durability have been increased.
• Reduced voltage loss using a 7-rib design.

Extended
Example: KJ20CR11, KJ20CR-U11

• Using a U-grooved ground electrode, a large ignition performance is obtained, allowing even lean mixtures to be ignited easily.
• The spark position is extended into the ignition chamber, improving combustion efficiency, fuel consumption, and drivability.

Extended
Example: KJ20CR-L11

• For Mazda and Mitsubishi Vehicles.
• KJ20CR11 has no U-groove. KJ20CR-U11 has a U-groove.

Iridium Long Life SIP
(Super Ignition Plug)

Example: FK20HR11, FXE20HR11

• Revolutionary DENSO Needle-to-Needle OE Technology
• Fine wire 0.55mm Iridium Alloy center electrode
• 0.7mm Platinum needle tipped ground electrode
• For exceptional performance and durability

Semi-Surface Gap
Example: W20EKR-S11, W20EPR-S11

• Using a semi-surface discharge, ignitability and fouling resistance are increased.
• W20EKR-S11 are for Honda vehicles, while W20EPR-S11 are for Mitsubishi vehicles.

Semi-Surface Double Electrode
Example: W20ETR-S11

• A double ground electrode with a 1mm gap is used and fouling resistance is improved.
• Using a short opposed-type dual ground electrode, excellent durability is obtained.
• Improved ignitability due to full projection.
• Used for Toyota and Daihatsu.

Shrouded Semi-Surface Gap Double Electrode
Example: K20DTR-S11, W20DTR-S11

• In addition to a semi-surface gap construction, the end of the threaded portion has been extended into the combustion chamber, and a shroud has been attached to improve fouling resistance.
• Used for Daihatsu and Subaru.

Triple Electrode
Example: K22PB, W20EPB

• Durability is increased with triple ground electrodes.
• For Audi, VW, Citroen, Fiat, Mercedes-Benz, Renault.


Double Platinum for D.I.
Example: PK20R-P11

• To prevent wear during plus (+) discharge, the size of the platinum has been increased on the ground electrode.

Shrouded Semi-Surface Gap Double Electrode
Example: K20DTR-S11, W20DTR-S11

• In addition to a semi-surface gap construction, the end of the threaded portion has been extended into the combustion chamber, and a shroud has been attached to improve fouling resistance.
• Used for Daihatsu and Subaru.

Triple Electrode
Example: K22PB, W20EPB

• Durability is increased with triple ground electrodes.
• For Audi, VW, Citroen, Fiat, Mercedes-Benz, Renault.


Double Platinum for D.I.
Example: PK20R-P11

• To prevent wear during plus (+) discharge, the size of the platinum has been increased on the ground electrode.
Product: 
Double Platinum
Iridium Power®
Original U-Groove
Double Platinum
Platinum TT®
Iridium Long Life
Iridium Racing®

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