* World-leading
development of 0.7mm iridium alloy electrodes,
greatly improving firing and plug life. SK16R-P11
used in Toyota Century (Denso share: 100%)
(Eg)SK20BR11
* Sparks to main electrode
in normal use, but sparks to side electrode
when fuel injectors are dirty, burning off
carbon. Best design for fuel injection.Used
on Crown 3 liter fuel-injected engine (D-4)
(Denso share: 100%)
Reduces
electronic noise during ignition Electro-magnetic noise
reduction
* Insertion of a 5k resistor
between the center electrode and the surrounding
wall reduces electro-magnetic noise generated
during ignition. A majority of assembly plugs
have gone to resistor plugs in line with the
increasing amount of electronic equipment
placed in
today's vehicles.
(Eg)
W16EX-U
* U Groove ground electrode provides high
firing energy for good firing even with
lean fuel mixtures.
* Full projection (2.5mm insulator extension)
reduces carbon fouling and smooths operation
and acceleration.
* Unique Platinum alloy on center electrode
(0.7mm diameter). Three point laser
welding of joined parts yields high reliability.
(Eg)
PK20R11
* Insertion of a 5k resistor
between the center electrode and the surrounding
wall reduces electro-magnetic noise generated
during ignition. A majority of assembly plugs
have gone to resistor plugs in line with the
increasing amount of electronic equipment
placed in
today's vehicles.
(Eg)
PK20R-P11
Increased amount of platinum on ground
electrode to prevent wear during positive
discharge.
(Eg)SKJ20CR-L11
* Projection of spark position into combustion
chamber improves combustion efficiency,
boosting mileage and driveability.
(Eg)
PK20R11
* Platinum chips welded to ground electrodes
and facing surfaces of center electrode.
* Two electrodes structure reduces voltage
required during positive discharge.
(Eg)Q20PR-P11.K16PR-TP11
* Narrowing the center electrode and placing
platinum only on that electrode boosts mileage,
driveability and plug life.
* K16PR-TP11 has a taper cut center electrode
to further improve firing.
(Eg)S29A
* Use of semi-surface discharge enhances
firing, anti-fouling and plug life.
* Seven ribs corrugation reduces voltage
loss.
(Eg)
J16AR-U11
* Platinum chips welded to ground electrodes
and facing surfaces of center electrode.
* Two electrodes structure reduces voltage
required during positive discharge.
(Eg)KJ20CR11.KJ20CR-U11
* Mazda, Mitsubishi vehicles.
* KJ20CR11, no U Groove.
* KJ20CR-U11, with U Groove.
(Eg)KJ20CR-L11
* Use of semi-surface discharge enhances
firing, anti-fouling and plug life.
* Seven ribs corrugation reduces voltage
loss.
(Eg)
J16AY
* Platinum chips welded to ground electrodes
and facing surfaces of center electrode.
* Two electrodes structure reduces voltage
required during positive discharge.
(Eg)W20EKR-S11
W20EPR-S11
* Semi-surface discharge improves firing
and anti-fouling.
* W20EKR-S11 for Honda vehicles.
* W20EPR-S11 for Mitsubishi vehicles.
(Eg)W20ETR-S11
* Two ground electrodes set to 1mm gap.
* Two short facing electrodes provide superior
durability.
* Full projection improves firing.
* New supporting gap design improves anti-fouling.
* Toyota, Daihatsu vehicles.
(Eg)
J16AY
* In addition to semi-surface construction,
extension of screw tip into combustion chamber
forms a shroud that improves anti-fouling.
* Daihatsu, Suburu vehicles.
(Eg)K22PB
W20EPB
* Three ground electrodes boost durability.
* Audi, Volkswagen, Citroen, Fiat, Mercedes,
Renault vehicles.
