WSM Mercury Yamaha 75-115 HP 4-Stroke '99-'21 Gasket Kit - 500-336, 27-804345A2

WSM Mercury Yamaha 75-115 HP 4-Stroke '99-'21 Gasket Kit - 500-336, 27-804345A2

Marsoni

M251S

$117.56

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

WSM Mercury Yamaha 75-115 HP 4-Stroke '99-'21 Gasket Kit - 500-336, 27-804345A2ITEM#: 500 336 POWERHEAD GASKET KIT: MERCURY MARINER YAMAHA 75 115 HP 4 STROKE 99 21 OEM#: 27 804345A2, 27 858732T01, 27 858732T02, 67F W0001 00 00, 67F W0001 01 00, 67F W0001 02 00, 68V W0001 00 00, 68V W0001 02 00, 68V W0001 03 00, 68V W0001 04 00, 68V W0001 05 00, 68V W0001 06 00, 68V W0001 07 00, 6D8 W0001 00 00, 6D8 W0001 01 00, 6D8 W0001 02 00, 6D8 W0001 03 00, 6D8 W0001 04 00 BRAND: WSM FITMENTS: Make Model Year(s) Mariner ALL Mercury ALL

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Ran this for 5k and did oil analysis. It performed identically to Mobil 1 ESP 5w30. No issues, stayed in grade, nothing negative. That said, it was no better than ESP and wear metals were functionally the same as multiple other similar rated oils. It’s perfectly fine, but not better. It’s a great value. I wouldn’t use it for extended oil change intervals. No oil consumption noted.

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Reviewed in the United States on March 23, 2026

Verified Purchase

Carol

Los Angeles, US

★★★★★ 5

Great oil

Size: 1 Quart Pack of 6

Love it.

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Reviewed in the United States on April 18, 2026

Verified Purchase