Mercury 135 - 200 Hp Bottom Guided - 100-19-05PK, 9737T4 .020 SIZE PORT SIDE

Mercury 135 - 200 Hp Bottom Guided - 100-19-05PK, 9737T4 .020 SIZE PORT SIDE

Marsoni

M251S

$128.74

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

Mercury 135 - 200 Hp Bottom Guided - 100-19-05PK, 9737T4 .020 SIZE PORT SIDEITEM#: 100 19 045PK PISTON KIT MERCURY MARINER 135 200 HP 90 91 PORT . 015 OVER NOTE: 3. 515" BOTTOM GUIDED BRAND: WSM DETAILS: USE WITH CONNECTING ROD #636 FITMENTS: Make Model Year(s) Mariner ALL Mercury 6 Cyl 3. 125 Bore 2L 135 1990 1991 Mercury 6 Cyl 3. 125 Bore 2L 150 1990 1991 Mercury 6 Cyl 3. 375 Chrome Bore 2. 4L 175 1990 1991 Mercury 6 Cyl 3. 375 Steel Bore 2. 4L XR 4 150 1990 1991 Mercury 6 Cyl 3. 501 Bore 2. 5L 200 1991 Mercury 6 Cyl 3. 501

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Everything looks good quality to me. I find it odd that the people leaving bad reviews with pictures of broken and melted impeller, when you can clearly see the brass on the inside is brown and dirty like old pennies and mine is shiny new. It's almost like the took the pictures of the ones they replaced to get a refund and a free repair kit.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 26, 2026

Verified Purchase

Amazon Customer

Alexandria, US

★★★★★ 5

Well made materials.

Arrived on time and well packaged. Good quality materials and exact fit. Perfect fit, Easy to install. Make sure to review installation instruction. Don't put the gaskets in the wrong place. Will buy again from this vender.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on September 17, 2025