★★★★★ 5
Heavy duty
Size: 125 Pack
Heavy duty
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2026
NGK IX Iridium Spark Plug (Set of 4)
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
NGK IX Iridium Spark Plug (Set of 4)NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high
Quick Dispatch:
Your NGK IX Iridium Spark Plug (Set of 4) orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
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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.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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4.2 ★★★★★
Based on 428 reviews
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Product Reviews
★★★★★ 4
Not coated
Size: 125 Pack
These plates are good but not coated
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2026
★★★★★ 5
good
Size: 125 Pack
good
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Reviewed in the United States on October 19, 2025
★★★★★ 3
Too expensive. Better deals elsewhere
Size: 125 Pack
The plates are very nice, light weight but way overpriced for the product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2025
★★★★★ 5
Plates
Size: 125 Pack
They hold up very well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2025
