Need expert help? Reach out to us via live chat MON-SAT, 9AM to 5PM ET, for support. Our specialists are ready to assist you!

Please, add your first item to the wishlist

Need expert help? Reach out to us via live chat MON-SAT, 9AM to 5PM ET, for support. Our specialists are ready to assist you!

Please, add your first item to the wishlist

This product is either universal fit or has not been assigned fitment yet

Spark Plug (Pre-Gap 0.03) (Copper)

PART#: 7421
NGK

$999.95

This product is either universal fit or has not been assigned fitment yet

Out of stock

Interchanges
BrandPart #
ACDelcoCSR45
Autolite245
AutoliteXST254DP
AutoliteXST255DP
Briggs & Stratton293918
Champion Spark Plug840
Champion Spark Plug840C
Champion Spark PlugRCJ8
DENSO Auto Parts6022
DENSO Auto Parts6025
DENSO Auto PartsW20M-U / W20MU
DENSO Auto PartsW20MR-U / W20MRU
E3E3.12 / E312
E3FF-12 / FF12
Hitachi Construction Machinery018-00546-211 / 01800546211
Honda98073-56744 / 9807356744
Kawasaki92070-2060 / 920702060
Kohler4113202S
KubotaE7199-67740 / E719967740
MotorcraftAR7N
NGK7421
Oregon77-306 / 77306
Robin065-01404-70 / 0650140470
Shibaura150265060
TorchL6RC
About NGK

NGK is a company with over 80 years of experience in the automotive industry. The production of the first NGK spark plugs began in 1937.

However, it was the manufacturing of copper-cored wide range spark plugs in 1958 that helped the company become a leading brand in the automotive industry. The company headquarters is located in Nagoya, Japan.

With the success of NGK products like spark plugs, glow plugs, and oxygen sensors, the company gained a strong global presence.

NGK currently has 35 production plants worldwide and employs more than 10,400 people.

The company currently has facilities in countries such as South Africa, South Korea, Japan, Australia, China, India, France, United States, and United Kingdom.

In the beginning, the company supplied a majority of its products to Japanese automakers. Today, drivers across the globe use NGK spark plugs, which are compatible with a variety of vehicle makes.

In fact, almost every petrol engine available on the market can use NGK spark plugs.

The company produces more than a thousand different types of spark plugs, which makes it easy to find the right fit for your engine.

There are three different NGK innovation labs where engineers search for new ways to improve existing products and make new ones.

Thanks to the efforts of these labs, NGK was able to venture into the medical industry.

Despite being one of the largest manufacturers of spark plugs on the planet, NGK is always thinking about the next.

A few years ago, the company announced plans to gradually shift its focus towards solid-state batteries because electric vehicles may make spark plugs obsolete.

Specifications
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialNickel
Electrical Terminal TypeRemovable Nut
Ground ConfigurationStandard
Ground Electrode Core MaterialNickel
Ground Electrode Quantity1
Ground Electrode Tip DesignStandard
Hex Size3/4
Insulator Height40.00
Manufacturer Heat Range6
Part NumberBMR6A
Pre-Gap Size.028
Reach.375
Resistance10000.0
Seat TypeFlat
Stock Number7421
Thread Diameter14.00
Warranty
We offer a 2-year warranty on all parts that we sell. If the part fails within 2 years of purchase, please contact us for instructions to replace it. The warranty does not cover normal wear and tear or improper installation. On many parts, we also offer Extend product protection, which is a way to add up to 3 additional years for 5 total years of worry free coverage. Select your preferred term length and you're covered!
Delivery & Returns

Delivery Info

Newparts.com is your go to store for all parts and accessories at the best price and delivered quickly. Every order we ship receives a tracking number so that you can watch it all the way until it reaches your door. We only ship using the major shipping carriers like FedEx, UPS and USPS to ensure quick and safe delivery of your new car parts order.

Returns Info

Newparts.com offers a thirty (30) day return for refund for all items purchased through Newparts.com. To qualify for return and refund, all items must be new and in their original manufacturers box. To initiate a return, please contact our customer service. This information is only a summary. Complete shipping and return policy information can be found in our web site policies.

Free shipping Icon

FREE SHIPPING

Available on all kits, sets & Bison performance products