NGK
More Information for NGK 1555
{Alternate Inventory Numbers: SIZKBR8A8HS}
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NGK 1555  
($13.99/Each)
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NGK 1555 Specifications
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialIridium
Electrical Terminal TypeNon-Removable Nut
Gap Size (IN).032
Ground ConfigurationStandard
Ground Electrode Core MaterialCopper
Ground Electrode Quantity1
Ground Electrode Tip DesignSquare Platinum Electrode - High Ignitability
Hex Size (MM)14 bi-hex
Insulator Height (mm)50.00
Manufacturer Heat Range8
Part NumberSIZKBR8A8HS
Reach (mm)26.5
Resistance (ohms)5000
Seat TypeFlat
Stock Number1555
Thread Diameter (MM)12.00
Laser Iridium High Ignitability; Pre-Set Gap: 0.032"
Features & Benefits:
  • Platinum disc welded to backside of ground electrode provides long life
  • Trivalent Metal Plating for superior anti-corrosion and anti-seizing
  • Consistent and stable spark
  • Faster starts and quicker acceleration
  • Better fuel economy and lower emissions
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: 12120038507

Warranty Information:
60 Days