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NGK Laser Iridium Spark Plug Box of 4 (SILMAR9A9S)

Marsoni M251S
Sale price$70.76
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Get it in 3 business days with 1 day shipping. Friday, May 29
NGK Laser Iridium Spark Plug Box of 4 (SILMAR9A9S)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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4.9 ★★★★★
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A
Verified Purchase
Amazon Customer
Carnegie, US
★★★★★ 1
Cheap
Cheaply made
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 30, 2025
K
Verified Purchase
Kris W Cayton
Grantham, US
★★★★★ 5
Great quality and price
Perfect fit. Received quicker than boat shop
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 22, 2025
R
Verified Purchase
Roger
Bozeman, US
★★★★★ 5
Easy to install if you watch some online how to videos.
The water pump kit worked great on my 35 year old, 2 stroke, 100hp, Mercury Outboard.
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Reviewed in the United States on May 15, 2025
M
Verified Purchase
Mike M.
Lowell, US
★★★★★ 4
Very good shipped and received fast
Missing one bottom gasket. Maybe factor made changes from old style
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Reviewed in the United States on July 10, 2021
D
Verified Purchase
DW
Waukegan, US
★★★★★ 5
Good impeller kit
Great kit for impeller alpha one gen two outdrive. The only thing that was missing is the instructions as a reference.
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Reviewed in the United States on August 14, 2025

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