★★★★★ 4
Great Starter
The car is starting great now.
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Reviewed in the United States on May 2, 2026
WSM Mercury 200-300 HP Piston Kit 100-45, '94-'08, 18-4639, 100-45pk, 100-45sk
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
WSM Mercury 200-300 HP Piston Kit 100-45, '94-'08, 18-4639, 100-45pk, 100-45skITEM#: 100 45 PISTON SERIES PISTON KIT: MERCURY MARINER 200 300 HP 3L 94 08 OEM#: 18 4639, 2705 822066A7, 2705 822066T7, 700 858294T1, 700 858294T14, 700 858294T2, 700 858294T9, 822066A3 BRAND: WSM Sizes Available: Part#: Std. 3. 625" 100 45 PK (Port side) OR, SK (Starboard side) ***PLEASE SPECIFY AT CHECKOUT . 010 100 45 04 PK or SK . 015 100 45 045 PK or SK . 020 100 45 05 PK or SK . 030 100 45 06 PK or SK . 040 100 45 07 PK or SK Please Make A Note
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Your WSM Mercury 200-300 HP Piston Kit 100-45, '94-'08, 18-4639, 100-45pk, 100-45sk orders ship within 1-2 business days.
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- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 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.
- To process your return/exchange, please contact us at [email protected]
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4.4 ★★★★★
Based on 1063 reviews
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Product Reviews
★★★★★ 5
Good fit works great.
Style: FJ5T11000AA
This fit my Ford perfectly at a fair price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
★★★★★ 1
Do not buy this junk
Ordered on January 31 installed it on March 19. I’ve started my sick times with it since and now dead absolute junk. I would highly recommend staying away from this.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
★★★★★ 5
Great item
Size: 2.0L
This fit my car perfectly! It was was easy to install as well. Great price as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
★★★★★ 5
Easy to install and great quality—perfect for my 2018 Civic
Size: 2.0L
I bought this for my 2018 Honda Civic, and it fits perfectly. It only takes a few minutes to install with just a few clips, and the process is simple. I am a woman and do it myself with no issues at all.
The filter feels sturdy and well made. The thickness and overall quality are excellent. I’ve seen people mention “ease of cleaning,” but I don’t clean mine. I just remove, vacuum the area and replace it when needed. That might be a bit much, but it’s affordable and straightforward.
I can’t say exactly how much it improves airflow or fuel mileage, but I consistently get over 40 miles per gallon in economy mode, so it’s clearly performing well. Overall, it’s a great product if you like handling basic car maintenance on your own.
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Reviewed in the United States on May 11, 2025
