WSM Mercury 100 / 115 Hp 4 Cyl Rebuild Kit (Top Guided) .010 3.385

WSM Mercury 100 / 115 Hp 4 Cyl Rebuild Kit (Top Guided) .010 3.385", 100-35-31

Marsoni

M251S

$461.90

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

WSM Mercury 100 / 115 Hp 4 Cyl Rebuild Kit (Top Guided) .010 3.385", 100-35-31WSM Outboard Mercury 100 115 Hp 4 Cyl Rebuild Kit (Top Guided) Pistons use top guided rods only This kit meets or exceeds OEM specifications . 010 SIZE ONLY 3. 385" Piston kit OE # 815965A4, 815965T4, 815965A6, 777815965A4, 777815965T4, 777815965A6, 777 815965A4, 777 815965T4, 777 815965A6 Kit includes everything you need to re build your outboard engine Four Brand New High Quality Moly coated WSM Pistons, 4 rings, pins and clips, complete gasket kit,

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Your WSM Mercury 100 / 115 Hp 4 Cyl Rebuild Kit (Top Guided) .010 3.385", 100-35-31 orders ship within 1-2 business days.

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Fast: 2-3 business days
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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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No reason not to go OEM for this! Came with every possible gasket and seal I could need. Specifically for my Alpha One Gen 1 it took maybe 25-30 min to completely install. While you’re there check the base plate for wear and the other surrounding items like your water tube. Rather keep the lower unit off for an extra day to get another part than a catastrophic failure.

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Reviewed in the United States on September 9, 2025

Verified Purchase

Taylor 🤍

Omaha, US

★★★★★ 5

Husbands things

My husband bought this. I don’t know much about it but he has zero complaints. He bought it for a boat. He has fixed up 2 boats, sold one & we kept the other. So he apparently knows what to buy & how to use it.

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Reviewed in the United States on November 6, 2025

Verified Purchase

Edward W.

Bozeman, US

★★★★★ 4

Amazon is easy and fast . No problems the oarts was exactly as described.

liked that everything was in one bag . and could make sure everything was changed .

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Reviewed in the United States on August 3, 2020

Verified Purchase

Justin Yeager