Mercury 50-300 Hp 3 & 6 Cylinder Switch Box '76-'99 - 114-7778, 332-7778A 12

Mercury 50-300 Hp 3 & 6 Cylinder Switch Box '76-'99 - 114-7778, 332-7778A 12

Marsoni

M251S

$198.99

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

Mercury 50-300 Hp 3 & 6 Cylinder Switch Box '76-'99 - 114-7778, 332-7778A 12ITEM#: 114 7778 SWITCH BOX MERCURY MARINER 50 300 HP 3 6 CYL 76 99 OEM#: 332 7778A 12, 332 7778A 3, 332 7778A 5, 332 7778A 6, 332 7778A 9 BRAND: CDI ELECTRONICS FITMENTS: Make Model Year(s) Chrysler Force 3 Cyl 3. 375 Bore 70 1991 1995 Chrysler Force 3 Cyl 3. 375 Bore 90 1991 1994 Mariner ALL Mercury 3 Cyl 2. 875 Bore Cross Flow 50 1986 1990 Mercury 3 Cyl 2. 875 Bore Cross Flow 60 1984 1990 Mercury 3 Cyl 2. 875 Bore Cross Flow 70 1980 1983 Mercury 3

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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

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SEA

Pawtucket, US

★★★★★ 5

Ok for gas engines

Size: 1 Quart, Style: 1-Pack, Configuration: Euro 5W-40

Has latest API cert (SQ). Not with latest VW / Porsche / Mercedes diesel engine approvals.

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Reviewed in the United States on April 25, 2026

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