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Ships within 48 hours · Estimated delivery Aug 23 - Aug 28
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Description
NGK OEM Spark Plug Kit for Mercury Verado V10 6.4 350-425HP Engines (Set of 10)Spark plugs are responsible for providing an ignition source inside your engines combustion chamber. Energy is transferred from the ignition coil to the plug which creates a spark igniting the air fuel mixture. Our technicians and Mercury recommends replacement at the 300 hour service maintenance interval. NGK Fine Wire Platinum Tipped Center Electrode ensures higher durability, deliver slow wear rate, stable spark, superior anti fouling, improved
Spark plugs are responsible for providing an ignition source inside your engine’s combustion chamber. Energy is transferred from the ignition coil to the plug which creates a spark igniting the air-fuel mixture.
Our technicians and Mercury recommends replacement at the 300-hour service maintenance interval.
- NGK Fine Wire Platinum Tipped Center Electrode ensures higher durability, deliver slow wear rate, stable spark, superior anti-fouling, improved fuel efficiency and lower emissions
- This spark plug meets Mercury Marine original equipment manufacturer specifications to best protect your engine and ensure its optimum performance
- Check your engine owner’s manual for the correct spark plug and use only the plug as recommended by your engine’s original equipment manufacturer
- NGK Trivalent metal plating also provides superior anti-corrosion in the marine environment and anti-seizing for easier removal
- Longer service life with a copper core and ribbed suppressor seal for durability and performance
Sold as set of 10 spark plugs.
Manufacturer Part #: NGK LKAR7C-9
Direct Replacement for OEM Part #:
- 33-8M0135348
- 8M0135348
- 8M0204737
- 8M0135348
Fits The Following Engines:
- Mercury Verado V10 350HP
- Mercury Verado V10 400HP
- Mercury Verado V10 425HP
- Mercury Racing V10 400R
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.3 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
100% Cotton Pillows .
Color: White, Size: Queen Size Set of 2, Color: White, Size: Queen Size Set of 2
These pillows feel soft and fluffy without being too flat. They provide nice support for the neck and feel comfortable whether sleeping on your side or back. After several nights of use, they still keep their shape well and don’t feel too warm during the night. The set comes with two pillows, which makes it really practical for the bed.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Luxury Comfort and Perfect Support – Best Pillows Ever!
Color: White, Size: King Size Set of 2
I recently purchased the Serta Hotel collection Pillows White Goose Feather Down Fiber Gusseted, and I couldn’t be happier with my choice! These pillows are the perfect balance of softness and support — plush enough to feel luxurious, yet firm enough to keep my neck properly aligned all night. The gusseted edges really make a difference, helping the pillow hold its shape and look full even after weeks of use.
The quality of the materials is excellent — the outer cover feels smooth and breathable, and there’s no feather poking out like with cheaper options. I also appreciate that they fluff back up easily after use, making the bed look hotel-perfect every morning.
If you’re looking for comfortable, high-quality pillows that provide great value for the price, I highly recommend these. They’ve truly improved my sleep!
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Reviewed in the United States on October 7, 2025
★★★★★ 4
Good quality pillows
Color: White, Size: Queen Size Set of 2
These are very soft and supportive as advertised. W find them a little too thick for my taste (why I only gave 4 stars), but personal preference is very subjective with pillows. They are well made and high quality, and am happy with my purchase.
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Reviewed in the United States on January 15, 2026
★★★★★ 3
Overall, not that comfortable!
Color: White, Size: Queen Size Set of 2
Only okay. I find these pillows to be heavy, and not very conforming. Overall, not that great.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
goose down pillows.
Color: White, Size: King Size Set of 2
Since receiving them, these king-size white goose down pillows have truly transformed my sleep. They are incredibly soft and fluffy to the touch, so plush it's hard to believe they hold their shape. Sleeping on them is like lying on a cloud.
The 100% cotton cover adds extra comfort: it feels cool to the touch, breathes well throughout the night, and helps me maintain a comfortable temperature while I sleep. Furthermore, the "reinforced fiber" structure is noticeable: after several weeks of use, the pillows retain their support; they don't clump or lose their shape, ensuring consistently good rest.
I find they have the ideal balance between firmness and softness: firm enough to support my neck and head, yet plush enough to adapt to my posture without creating pressure. This has improved my nights; I sleep more soundly and wake up with less stiffness in my neck.
In short: these pillows combine luxury, comfort, and durability. If you're looking to improve your sleep quality with soft, firm, and breathable pillows—especially in king size—these are perfect. Definitely one of the best investments you can make for better sleep.
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Reviewed in the United States on November 30, 2025