Set of 4 TOYOTA 90919-01253 DENSO 3444 SC20HR11 Spark Plugs Iridium Long Life

Description

Iridium Long Life; Iridium TT
The Iridium TT Twin Tip Technology delivers far less obstruction to the spark allowing an omni-directional explosion. This minimizes the quenching effect and results in a more effective, more complete combustion. Better combustion means more power and better fuel economy, as fuel is burned more efficiently with each piston firing. The large center and ground electrodes seen on a Standard Plug increases "quenching" of the explosion, meaning the spark explosion is restricted by the electrodes above and below the gap, allowing it to spread to either side, but not grow with full range.
Features:
The Iridium TT's two tips (a 0.4-mm Iridium center electrode, and a 0.7mm Platinum ground electrode) allow the spark plug to create the largest spark concentration and explosion.
Denso's patented Twin-Tip technology was first used on original equipment spark plugs for luxury and performance cars. Now that technology is available to everyone.
Denso selected Iridium and engineered it with Rhodium to build the most durable alloy for spark plugs. The patented formula has the highest concentration of Iridium of any spark plug and outperforms in the most severe engine temperatures resisting oxidation and voltage wear for over 100,000 miles.
Titanium-enhanced alloy ground electrode.
1.1mm Platinum Center Electrode.
What's in it for you?
Improved Fuel Economy
Faster Starts
Enhanced flame propagation for increased engine efficiency
Why purchase the Iridium TT Spark Plug?
Spark Plug Type Performance Differences
Center Electrode Core Material
Copper
Gap Size
1.0 MM
Ground Configuration
Twin-Tip
Ground Electrode Core Material
Nickel
Ground Electrode Quantity
1
Ground Electrode Tip Design
Platinum Twin-Tip
Hex Size
14.3
Manufacturer Heat Range
20
Reach
26.50 MM
Resistance
5000
Seat Type
Flat
Thread Diameter
12.00 MM
Alternate/OEM Part Number(s): 0041596403, 1118282Z00, 1118282Z01, 12122158165, 12122163332, 12122293697, 19185438, 224011HC1B, 22401CK81B, 22401EA014, 22401EA015, 22401EW61B, 22401JA01B, 22401JD01B, 9091901253, AJ812146, C2P23089, LR019484, LR032080, PE0118110, PE0118110A, PE0218110, PE5R18110, PE5S18110