


NGK Iridium IX Spark Plug Box of 4 (LFR6AIX)
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
NGK Iridium IX Spark Plug Box of 4 (LFR6AIX)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
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Your NGK Iridium IX Spark Plug Box of 4 (LFR6AIX) orders ship within 1-2 business days.
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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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4.8 ★★★★★
Based on 904 reviews
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Product Reviews
★★★★★ 5
Satisfied
Size: XX-Large, Color: D Green
Typically buy these from coofandy. This was my first from jmierr. Great purchase. Good material. Great fit. Not super thin material or super thick. Good and comfortable. Would purchase again!
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Reviewed in the United States on January 29, 2026
★★★★★ 5
Solid 2pc set
Hubby recently had hip replacement surgery & needed some comfier clothes while he's recuperating.
These are really comfy but they fit well and the subtle stripe just looks a little more "put together" than a standard sweat suit. This isn't his normal style but he's becoming a fan 🙂
Wash and dry well- no special treatment and no wrinkling or shrinkage. Warm but not hot, seem to be well made... not seeing pilling or strings unraveling, etc 👍👍
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Reviewed in the United States on December 17, 2025
★★★★★ 4
Style
Size: Large, Color: 1 Black
Yes, but it wasn't soft. The style, size and color is perfect.
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Reviewed in the United States on September 10, 2025
★★★★★ 5
Fits great
Size: Large, Color: B Beige
Great two piece
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Reviewed in the United States on March 26, 2026
★★★★★ 5
Cool days
Size: X-Large, Color: 1 Black
Material soft and warm, washes well.
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Reviewed in the United States on April 14, 2026