NGK Laser Iridium Spark Plug Box of 4 (IZFR5K11)

NGK Laser Iridium Spark Plug Box of 4 (IZFR5K11)

Marsoni

M251S

$63.66

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

NGK Laser Iridium Spark Plug Box of 4 (IZFR5K11)NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts.

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I love the concept of it, especially for little ones that like to shove toys in their mouths. But boy is it MESSY, lol. Water will absolutely get everywhere even if you put it on the lowest setting so I just let my kids hold it in the bath. They mostly suck in it so I'm not sure if it's actually flossing their teeth, but that's more of a user error, not a product error. I tried it on myself and it's pretty powerful even for an adult. It definitely functions well. The size is just perfect for an adult, kind of big for a toddler. Overall it's great value for your money in my opinion.

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Reviewed in the United States on January 27, 2026