Specifications
- Brand
- NGK
- Part #
- 4940
- UPC
- 87295149409
NGK Racing Spark Plug Box of 4 (R0373A-10)
Box of 4
Sold as a complete box
Per Unit
$112.87
Box of 4 Total
$451.47
$451.47
for box of 4Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.
NGK Racing Spark Plug Box of 4 (R0373A-10). Built for extreme racing conditions with durable center electrodes.
Key Features
- Designed for extreme racing conditions.
- Center electrode has special configurations for durability and ignitability.
- Pure alumina silicate ceramic insulator provides superior strength and better heat transfer.
- Special insulator nose configurations improve throttle response.
- Trivalent metal plating offers anti-corrosion and anti-seizing properties.
- Corrugated ribs prevent flashover.
Product Details
When you're pushing your engine to its limits on the track, the right spark plug makes all the difference. These NGK Racing spark plugs are built specifically for those grueling racing conditions where reliability and consistent ignition are critical. They're designed to handle the intense heat and pressure that come with high-performance driving, helping champions win races around the world.
What sets these plugs apart is the special design of the center electrode, which is made for durability and reliable spark delivery, even under extreme stress. The pure alumina silicate ceramic insulator offers better heat transfer and is strong, while the special nose configurations can actually improve throttle response. You'll also find features like trivalent metal plating for easier installation and removal, corrugated ribs to prevent flashover, and a copper core to help manage heat. These plugs also use triple seals to prevent any leaks.
Specifications
- Brand
- NGK
- Manufacturer Part #
- 4940
- UPC
- 87295149409
Frequently Asked Questions
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NGK Racing Spark Plug Box of 4 (R0373A-10)