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NGK Iridium/Platinum Spark Plug Box of 4 (SILZKR7B11)

Marsoni M251S
Sale price$53.20
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Get it in 3 business days with 1 day shipping. Friday, May 29
NGK Iridium/Platinum Spark Plug Box of 4 (SILZKR7B11)NGK Laser Iridium High Ignitability spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium High Ignitability 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
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.7 ★★★★★
Based on 963 reviews
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Verified Purchase
R J
Pawtucket, US
★★★★★ 4
2015 Civic
Size fits properly on a 2015 Honda Civic SI sedan. Price could be a little cheaper for a non-OEM part.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026
J
Verified Purchase
Jean Therasse
Draper, US
★★★★★ 5
Excellent fit and great quality”
This filter fit perfectly and was very easy to install. The quality feels solid, and it made an immediate difference in air flow. It’s a reliable replacement at a much better price than the dealer. I’ll definitely be buying this brand again for future changes.
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Reviewed in the United States on August 17, 2025
R
Verified Purchase
Robert Weiner
Draper, US
★★★★★ 5
Super deal
This was a great replacement and much cheaper than most.
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Reviewed in the United States on May 16, 2026
G
Verified Purchase
Geff Chu
Battle Creek, US
★★★★★ 5
Nice replacement filter
Fits perfectly
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Reviewed in the United States on April 18, 2026
W
Verified Purchase
William
Lake Worth, US
★★★★★ 5
Fit
Size: 8.8" x 9.3" x 1.1"
Product looks and works well
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Reviewed in the United States on May 7, 2026

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