Sign up for 4x NGK Racing Spark Plugs – R7437-9 (4654) – Nickel Core, 0.028" Gap, Heat Range 9
4x NGK Racing Spark Plugs – R7437-9 (4654) – Nickel Core, 0.028" Gap, Heat Range 9
1 / 4
$ 129.50
Description
028 inch from the factory.
The center electrode tip is iridium, but the ground electrode core is nickel with a taper cut/trapezoid design.
Copper core center for good heat transfer.
They come with a gasket seat and standard ground configuration.
Made for racing applications where you need reliable spark under extreme conditions.
Great for track days or boosted street cars.
This is a set of 4 NGK racing spark plugs – model R7437-9, also known as 4654.
They're serious plugs for serious builds.
The thread diameter is 0.
028 inch from the factory.
The center electrode tip is iridium, but the ground electrode core is nickel with a taper cut/trapezoid design.
Copper core center for good heat transfer.
They come with a gasket seat and standard ground configuration.
Made for racing applications where you need reliable spark under extreme conditions.
Great for track days or boosted street cars.
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