Name: NGK Spark Plugs 6421 NGK Standard Spark Plug
SKU: 6421
Price: 3.3 USD
Availability: InStock

NGK SPARK PLUGS part description

SPARK PLUG

Product Description

NGK Standard Spark Plug

Features & Benefits

ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode provides consistent performance
RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
NGK's OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal

Product Attributes

Part Number	BM7F
Stock Number	6421
Resistance	0.0 82
Ground Electrode Tip Design	Standard
Ground Configuration	J-Gap
Ground Electrode Core Material	Nickel
Electrical Terminal Type	Removable Nut
Center Electrode Core Material	Copper
Center Electrode Tip Material	Nickel
Pre-Gap Size	.028 IN
Ground Electrode Quantity	1
Hex Size	5/8 IN
Insulator Height	40.00 MM
Manufacturer Heat Range	7
Seat Type	Tapered
Reach	0.375 IN
Thread Diameter	14.00 MM
Short Style Spark Plug	Yes
Service Number	BM7F
Washer Included	No
Grade Type	Regular
Hex Size	5/8" (16mm)
Insulator Height	1.45 IN
Thread Diameter	0.551 IN
Insulator Material	Ceramic
Resistor Type	No
6648	0.0 IN
Ground Electrode Tip Material	Nickel
9459	No
9506	0.04 IN
9608	Standard
9805	Non-Projected

Additional Information

Warranty Time UOM	MO
Warranty Time	2
Country of Origin (Primary)	JP
Harmonized Tariff Code (HTS)	8511100000
UPC	00087295164211
VMRS Code	033003005
UNSPSC	26101732

Part Interchanges

Headquartered in Wixom, Michigan, NGK® is a global leader in the design and manufacture of spark plugs for virtually every automotive and commercial vehicle application. It has grown immensely since its inception in 1936 with the expansion of its ignition product line and the introduction of its technical sensor and vehicle electronics line. NGK partners with OEMs and uses only the latest cutting tools to ensure each NGK product meets OE specifications for exact fit, form, and function. With world-class quality and engineering, NGK’s expertise goes beyond manufacturing the most reliable spark plugs for the automotive industry but also providing the best customer service possible.

California Proposition 65 Warning

WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov. (Read more)