WSM Water Pump Coupling Assembly Mercury Mariner Mercruiser 200 - 250 Hp 18-3151

WSM Water Pump Coupling Assembly Mercury Mariner Mercruiser 200 - 250 Hp 18-3151

Marsoni

M251S

$15.97

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

WSM Water Pump Coupling Assembly Mercury Mariner Mercruiser 200 - 250 Hp 18-3151Item#: 18 3151 Water Pump Coupling Assembly Mercury Mariner Mercruiser 200 250 Hp OEM#: 816597A1 Brand: Sierra FITMENTS: Make Model Year(s) Mariner ALL Mercruiser ALL Mercury 6 Cyl 3. 625 Bore 3L 225 1994 1998 Mercury 6 Cyl 3. 625 Bore 3L EFI 225 1995 1998 Mercury 6 Cyl 3. 625 Bore 3L EFI 250 1995 1998 Mercury 6 Cyl 3. 6265 Bore 3L Optimax 200 1997 Mercury 6 Cyl 3L Carb Sea Pro 225 1995 1998

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Easy to install and very simple to place into the correct compartments in the glove box and engine bay. Took maybe 15 minutes or less. Quality is great and the air in the cabin is so fresh now! The quality of the air filters is OEM+ which is great when trying to save some money and add value to the product. Fits perfectly in my 2020 Honda civic Sedan. Includes everything needed to replace both filters. Includes both cabin and engine air filter

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on June 1, 2026

Verified Purchase

J A

Draper, US

★★★★★ 5

Fits 2017 Honda Civic

This fit perfect for my 2017 Honda Civic. It looks and feels super similar to the ones I removed so they seem of equal quality. As for value? Can't beat it!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on August 29, 2025