Mercury 135-200 Hp 2L Bottom Guided Piston Kit - 100-50-04pk .010 PORT 765-7442T

Mercury 135-200 Hp 2L Bottom Guided Piston Kit - 100-50-04pk .010 PORT 765-7442T

Marsoni

M251S

$100.88

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

Mercury 135-200 Hp 2L Bottom Guided Piston Kit - 100-50-04pk .010 PORT 765-7442TMercury 135 200Hp 2L Bottom Guided Piston Kit . 010 OVER SIZE PORT SIDE 3. 135" 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 Includes Piston, Piston Rings, Set Wrist Pin & Circlips ITEM#: 100 50 04PK PISTON KIT MERCURY MARINER 135 200 HP BOTTOM GUIDED PORT . 010 OVER USED WITH CONNECTING ROD #636 BRAND: WSM

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Seemed to work as well as or better than some more expensive catalytic converter cleaners. I put it in while at 1/3 tank and my Check Engine light went out almost immediately once I started driving. My Tundra has almost 230,000 miles and still runs great but was getting a little harder to start after I switched from full synthetic oil to conventional. I’ll never do that again and immediately switched back but the damage was done. Check engine light came on and I had to crank longer to get it started. Adding this Liquid Moly fixed both issues temporarily. I have to wonder if this was used regularly, say every 3 months, if it would clean the catalytic converter more permanently?

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Reviewed in the United States on December 29, 2025

Verified Purchase

Jon.

Cuba, US

★★★★★ 3

Ehh??

Didn't work for my on my 17 hyundai accent with 90k on it. I poured the whole bottle in with a half tank of gas. And went for a 3 day italian tune up.... no dice.

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Reviewed in the United States on May 8, 2026

Verified Purchase

Juan Gonzalez

Lexington, US

★★★★★ 5

Works great

Follow instructions and it will work. Had a p420 code, caught it early used this. No more code and passed emissions

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Reviewed in the United States on May 10, 2026

Verified Purchase

Matt Teed

Carnegie, US

★★★★★ 5

Actually works on BMW!

I purchased this after the shorter black fluted tool I bought last year failed me. This thing is way better constructed, fits perfect , and actually works to turn it after you can’t turn it by hand any further. Was able to get torqued down to 25nm no problem finally with ease!

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Reviewed in the United States on November 12, 2024

Verified Purchase

Dak

Grantham, US

★★★★★ 5

Works great

Works great

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Reviewed in the United States on May 26, 2025