NGK
More Information for NGK 4055
{Alternate Inventory Numbers: BPR7EIX, 4055:8, BPR7EIX:8}
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NGK 4055  
($3.50/Each)
Price
$0.00
Core
+ Sold in packs of 1x1
Pack
$3.50
Total
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NGK 4055 Specifications
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialIridium
Electrical Terminal TypeRemovable Nut
Gap Size (IN).032
Ground ConfigurationStandard
Ground Electrode Core MaterialNickel
Ground Electrode Quantity1
Ground Electrode Tip DesignTaper Cut
Hex Size (IN)13/16
Insulator Height (mm)55.00
Manufacturer Heat Range7
Part NumberBPR7EIX
Reach (IN).75
Resistance (ohms)5000
Seat TypeFlat
Stock Number4055
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: 1125, 1UN218110, 7250, 7270, 9079320110, 9079320111, 9079320175, 9900069837BR7, 9900079K60P7R, 9900079S19BR7, 99906910X9003, BP7EVX, BY480BPR7E, MZ602062, XP63, XS62

Closeout Inventory Warranty Information:
Wholesaler Closeout items have a 30 day warranty (but still are covered by our Return Policy).

Regular Inventory Warranty Information:
60 Days