NGK Iridium Racing Spark Plug Box of 4 (R7438-8)

NGK Iridium Racing Spark Plug Box of 4 (R7438-8)

Marsoni

M251S

$114.97

Get it in 3 business days with 1 day shipping. Friday, May 29

NGK Iridium Racing Spark Plug Box of 4 (R7438-8)NGK Racing spark plugs are designed with extreme use in mind and meant to withstand the most grueling racing conditions. NGK Spark Plugs have been powering racing champions and can be found in every racing venue throughout the world. The center electrode of the NGK Racing spark plugs has special configurations and designs to ensure durability and ignitability. NGK Racing plugs bring ultra high performance in a variety of heat ranges. Special

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Banana clips are high quality, I used 12 awg wires and had no issues. It secures into the plug with 2 small screws, you will need a flat terminal screw driver to install them. The quality was high and made a good connection. If I had to make one complaint it would be that I would tighten the gray piece to the plug and it always kept spinning, otherwise, excellent product.

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Reviewed in the United States on January 29, 2026

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Valkyrie Rider

Birmingham, US

★★★★★ 5

Good quality connectors

Size: 6 Pairs

Good quality connectors, holds wire well and stays in place. I’ll buy again

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Reviewed in the United States on March 1, 2026

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GrooV67

Whiting, US

★★★★★ 4

Worked fine for me

Size: 10 Pairs

I saw some reviews that mention difficulty in threading or fitting. They are tight, but they work fine. I had no issues installing the speaker wire and no issues with the set/crimping screws. I even had one fall out when I loosened it too much and, though it was challenging without my glasses, I did get it to thread back in with no problems. I have purchased other BluRigger products, like HDMI cables, and they are of great quality.

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Reviewed in the United States on December 19, 2024

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OCIE STEWART

New York, US

★★★★★ 5

They look great and work great!

Size: 12 Pairs

Great contact screws with bare wires and solid inserting with the banana clips! Would buy again!

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Reviewed in the United States on March 25, 2026

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