Description:
NGK Standard spark plugs (in the iconic NGK 'yellow box' packaging) are a proven OE cornerstone and technology customers have relied on for decades. Engineered specifically for OE applications, NGK Standard spark plugs provide OE quality nickel alloy reliable performance and design. NGK's legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance, while triple gasket sealing prevents combustion gas leakage. Solid 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.
Features and Benefits:
- ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode provides consistent performance
- COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
- NGK's OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
- RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
- SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
- TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
Specifications:
Center Electrode Core Material:
Copper
Center Electrode Tip Material:
Nickel
Electrical Terminal Type:
Stud
Ground Configuration:
Standard
Ground Electrode Core Material:
Nickel
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Standard
Insulator Height:
50.00 mm
Manufacturer Heat Range:
9
Thread Diameter:
10.00 mm
Briggs & Stratton #:
557039
Champion Spark Plug #:
309
Champion Spark Plug #:
993
Champion Spark Plug #:
RG4HC
Champion Spark Plug #:
RG92C
DENSO Auto Parts #:
U27ESRN
Harley Davidson #:
31600012
Manufacturer Warranty:
2 Months
