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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27
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Description
Sierra 18-3902 Marine Piston Ring For Mercury/Mariner Outboard MotorSierra'S 18 3902 Piston Rings Are Designed For Use In Mercury Marine Applications. It Is Interchangeable With Mallory 9 54217 And Mercury Marine 39 45155A12, 39 78816A12. Each Sierra Product Meets Or Exceeds The Original Equipment Part It Replaces.
Sierra'S 18-3902 Piston Rings Are Designed For Use In Mercury Marine Applications. It Is Interchangeable With Mallory 9-54217 And Mercury Marine 39-45155A12, 39-78816A12. Each Sierra Product Meets Or Exceeds The Original Equipment Part It Replaces.
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
4.7 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 4
Where’s the owners manual?
I really like this. The only drawback is that there is no owners manual!
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Reviewed in the United States on April 4, 2026
★★★★★ 1
poor purchase
It only lasted 2 mo before it quit working
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Clean teeth, smart features, and convenient to use!
I’ve gone through a few electric toothbrushes over the years, and this one stands out mostly because of how practical it is day to day. The cleaning power is solid, my teeth feel noticeably smoother after each use, especially along the gumline. The different modes are useful, I mostly stick to the standard clean mode, but the sensitive option is great when my gums feel a little irritated.
The built in UV sanitizing and drying feature is something I didn’t think I needed, but now I appreciate it. It’s nice knowing the brush head isn’t just sitting there wet between uses. The included rinse cup and storage setup make everything feel more organized on the counter, which is a small but real upgrade.
Battery life has been reliable so far, and the wireless charging base keeps things simple. It also comes with multiple brush heads, which adds value, especially if you plan to stick with it long term.
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Reviewed in the United States on April 19, 2026
★★★★★ 4
Cleans your teeth!
This is my first experience with an electric toothbrush. I was a little confused with how to charge this but you need to take out the cup and plug it into that spot. So it’s nice that it comes with a cup but it does go in the charging spot. The UV disinfectant and dryer is very cool indeed. I can’t tell what the difference is in all the different settings. The toothbrush does a really good job of cleaning and you can feel your teeth clean even for a while after you brush. You should put it in your mouth first before you turn it on or else you’ll spray toothpaste all over the place. Overall this was a good foray into electronic toothbrushing for me. I don’t think it’s the top quality as some of the name brands but it works and gets the job done. I love that it comes with replacement heads.
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Reviewed in the United States on April 5, 2026
★★★★★ 5
JTF Sonic Electric Toothbrush with UV Sanitizing & Drying: 5 Modes for Effective
Super cute, comes with lots of replacement heads. The sanitizing slot is really cool and makes everything feel extra clean.
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Reviewed in the United States on April 25, 2026