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NGK 2477
  • ($5.86) x4 Warehouse
  • ($5.90) x1 Warehouse
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NGK 2477 Specifications
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialIridium
Electrical Terminal TypeNon-Removable Nut
Gap Size (IN).044
Ground ConfigurationStandard
Ground Electrode Core MaterialNickel
Ground Electrode Quantity1
Ground Electrode Tip DesignTaper Cut
Hex Size (IN)5/8
Insulator Height (mm)50.50
Manufacturer Heat Range5
Part NumberZFR5FIX-11
Reach (IN).75
Resistance (ohms)5000
Seat TypeFlat
Stock Number2477
Thread Diameter (MM)14.00
Iridium IX
The improved throttle response, superior anti-fouling and high-ignitability makes Iridium IX® ideal for the performance enthusiast. Iridium's extremely high melting point is perfectly suited to today's high-temperature engines, delivering outstanding acceleration, fuel efficiency and durability.

Features & Benefits:
  • Fine Iridium tip ensures high durability and a consistently stable spark
  • Iridium alloy has extremely high melting point, perfect for today’s high-tech, high-performance engines
  • Trivalent Metal Plating - superior anti-corrosion and anti-seizing properties
  • Tapered ground electrode increases ignitability and minimizes quenching
  • High-grade alumina silicate ceramic creates a stronger insulator to reduce dielectric punch-through (caused by spark exiting through side of ceramic)
  • Cold-rolled threads prevent cross-threading and damage to cylinder heads

Which Spark Plug Is Right For You?

Material Cost Performance Lifespan Highlights
$$$ · Ultimate Ignitability & Durability
· Fast Throttle Response & Best Cold Starts
$$ · Improved Starts & Acceleration
· More Power & Better Fuel Economy
Double Platinum
$$ · Improved Efficiency
· Good For Waste Spark Systems
$ · Reduced Carbon Build-Up
· Good for Coil-On-Plug Systems
$ · Good Conductor
· Least Durable

Alternate/OEM Part Number(s): 1UNG18110, 99906910X9019, BY481ZFR5F, MZ602068, ZFR5FIX11

Warranty Information:
60 Days