ReviewsIridium Wire

Denso 3419 Spark Plug

Iridium offers excellent engine idle stability and smooth performance.
Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration.
Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form.
One piece suppressor seal helps block radio frequencies that can affect vehicle electronics.
Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage.
Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.
ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle.
GM regularly updates production and service part designs to integrate new materials and technologies.

Iridium offers excellent engine idle stability and smooth performance.
Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration.
Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form.
One piece suppressor seal helps block radio frequencies that can affect vehicle electronics.
Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage.
Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.
ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle.
GM regularly updates production and service part designs to integrate new materials and technologies.

EXTENDED CHANGE INTERVAL: The Autolite Iridium XP automotive replacement spark plug is engineered to last for up to 100,000 miles depending on engine....
FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency.....
OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and....
AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement....
CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems....

OEM number: LFR6AIX-11 #6619 Iridium IX Spark.
Extreme performance upgrade via OEM spark plugs and provide a lifetime at 40,000 50,000 miles..
Plugs have a fine-wire Iridium center electrode and nickel-alloy terrain electrodes for maximum engine and torque..
Designed for fuel-injected and turbo engines..

★ Fine wire Iridium center electrode ensures high durability and a consistently stable spark.
★ Quality: Iridium alloy has extremely high melting point, perfect for today’s high-tech, high-performance engines.
★ Easy Installation：Quick and simple installation..

Iridium offers excellent engine idle stability and smooth performance.
Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration.
Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form.
One piece suppressor seal helps block radio frequencies that can affect vehicle electronics.
Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage.
Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.
ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle.
GM regularly updates production and service part designs to integrate new materials and technologies.

Double Iridium firing pin and ground electrode inlay provide 4X longer service life compared to standard copper plugs.
0.6mm fine wire firing pin provides superior ignitability and performance.
360° continuous laser weld fuses corrosion resistant iridium firing pin to base for increased durability.
International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions..

★ Replaced OE number：LFR6AIX-11, 6619, BY481LFR6A, LFR6AIX11, MZ602091.
★ Fine wire Iridium center electrode ensures high durability and a consistently stable spark.
★ Quality: Iridium alloy has extremely high melting point, perfect for today’s high-tech, high-performance engines.
★ Easy Installation：Quick and simple installation..

★ Fine wire Iridium center electrode ensures high durability and a consistently stable spark.
★ Quality: Iridium alloy has extremely high melting point, perfect for today’s high-tech, high-performance engines.
★ Easy Installation：Quick and simple installation..

★ Replaced OE number：LFR6AIX-11, 6619, BY481LFR6A, LFR6AIX11, MZ602091.
★ Fine wire Iridium center electrode ensures high durability and a consistently stable spark.
★ Quality: Iridium alloy has extremely high melting point, perfect for today’s high-tech, high-performance engines.
★ Easy Installation：Quick and simple installation..