NGK
More Information for NGK 2668
{Alternate Inventory Numbers: BKR8EIX}
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NGK 2668  
($5.98/Each)
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$0.00
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NGK 2668 Specifications
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialIridium
Electrical Terminal TypeNon-Removable Nut
Gap Size (IN).032
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 Range8
Part NumberBKR8EIX
Reach (IN).75
Resistance (ohms)5000
Seat TypeFlat
Stock Number2668
Thread Diameter (MM)14.00
Iridium IX; Pre-Set Gap: 0.032"
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 NGK Spark Plug Is Right For You?

Material / Series Lifespan / Durability Performance / Ignitability Efficiency / Fuel Economy
Copper / Nickel V-Power
Copper
Platinum G-Power
Platinum
★★ ★★★★
Double Platinum Laser
Double Platinum
★★★★★ ★★ ★★
Iridium IX
Iridium IX
★★★ ★★★★★ ★★
Iridium Laser
Iridium Laser
★★★★★★ ★★★★ ★★★
Ruthenium HX
Ruthenium
★★★★★★★ ★★★★★ ★★★★
Videos

Check, Set & Adjust Spark Plug Gaps

OEM / Interchange Numbers: 2159, 2185, 2782, 2984, 3571, 3650, 4789, 4889, 4895, 4896, 5487, 5516, 5738, 5901, 5974, XP3922, XS3922

Warranty Information:
60 Days