Mercury 200-300 Hp 3.0L XS DFI Optimax Rebuild Kit 100-51-12, 842986T0.020 3.645

Mercury 200-300 Hp 3.0L XS DFI Optimax Rebuild Kit 100-51-12, 842986T0.020 3.645

Marsoni

M251S

$769.39

Get it in 3 business days with 1 day shipping. Friday, May 29

Mercury 200-300 Hp 3.0L XS DFI Optimax Rebuild Kit 100-51-12, 842986T0.020 3.645WSM Mercury 200 300 Hp 3. 0L XS DFI Optimax Rebuild Kit . 020 size pistons starboard and port 3. 645" Fully Machined Hypereutectic Cast Alloy Hard Coat Anodized Piston Tops Resisting Temperatures up to 1560`F T6 Heat Treated Hardness HV280 400 Plasma Moly Coated Rings Full Floating Wrist Pin This kit meets or exceeds OEM specifications. Includes: Six Brand New High Quality WSM Pistons, rings, pins and clips, complete gasket kit, upper, center and

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So far so good! And we really appreciated the little hair cutting tool for the roller—nice touch. We've replaced one bag, one brush head, and one filter using this bargain kit so far, nothing much to complain about. It's not quite OEM quality but it's very likely going to work well enough. We expect to go through one kit like this per year. Be aware that the rotating brush head replacement (the small round head ones, not the big rollers), have a little philips head screw that you have to remove. This was kind of hard to get off at first. We haven't used one of the replacement rollers yet, expect that we'll go through about two a year with our C10 at the current rate of wear.

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Reviewed in the United States on October 7, 2025

Verified Purchase

Marci H.

Alexandria, US

★★★★★ 5

Great Price and Product

This accessory kit was a good price and great fit for my eufy vacuum. I will buy it again.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on December 14, 2025