WSM EXHAUST FLAPPER MERCRUISER- 575-100, 18-2733, 92802, 99370A2

WSM EXHAUST FLAPPER MERCRUISER- 575-100, 18-2733, 92802, 99370A2

Marsoni

M251S

$29.97

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

WSM EXHAUST FLAPPER MERCRUISER- 575-100, 18-2733, 92802, 99370A2ITEM#: 575 100 EXHAUST FLAPPER MERCRUISER OEM#: 18 2733, 92802, 99370A2 water shutter BRAND: WSM FITMENTS: Make Model Year(s) Mercruiser ALL Mercruiser 228 ALL Mercruiser 262 ALL Mercruiser 305 ALL Mercruiser 350 ALL Mercruiser MC1 ALL NOTE: WATER SHUTTER For more information on our policies please click the Shipping and Payments tab or to ask a question click our store name for our home page.

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I use Pennzoil Platinum Euro Full Synthetic 5W-40 in my Fiat 124 Spider, and it’s been great so far. The engine runs smooth and quiet, and cold starts feel solid. No issues with oil consumption, and it holds up well between changes. The 6-pack of 1-quart bottles is convenient and makes it easy to measure out exactly what I need. Overall, it’s a quality synthetic oil at a good value. I’ll keep using it in my 124 Spider.

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Reviewed in the United States on February 28, 2026