Set of 8 TOYOTA 90919-01191 DENSO 3421 SK20HR11 Spark Plugs Iridium Long Life

Description

Iridium Long Life
DENSO's patented Iridium alloy is more durable than even Platinum, allowing the center electrode to be shrunk to only 0.7 mm in diameter. This produces a dramatic improvement in ignitability and spark plug life. DENSO's Iridium Long Life spark plug is standard equipment with a number of automakers including GM, Toyota, Honda, and Mitsubishi.
Features:
Fine-wire iridium center electrode
Platinum ground electrode
360 degree laser-welded spark tip
Benefits:
Sustained spark performance over 100,000 miles
Withstands higher pressures and temperatures
Reduced spark plug wear and erosion
Spark Plug Type Performance Differences
Center Electrode Core Material
Copper
Gap Size
1.1 MM
Ground Configuration
Standard
Ground Electrode Core Material
Nickel
Ground Electrode Quantity
1
Ground Electrode Tip Design
Platinum Chip
Hex Size
16.0
Manufacturer Heat Range
20
Reach
26.50 MM
Resistance
5000
Seat Type
Flat
Thread Diameter
14.00 MM
Alternate/OEM Part Number(s): 12120032138, 12120037663, 12122158253, 12293PHMA01, 12565996, 12788884, 224015M016, 22401AA580, 22401CK81B, 22401EA016, 22401ZH016, 306503790, 306508430, 307138590, 307518050, 307518060, 312161830, 32010632, 55564748, 9091901191, 9091901235, 90919A1002, MN158596, SK20HR11