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Thermostat housing gasket Sierra p/n 18-2917, Mercruiser p/n 27-53045-1. hermostat Housing Gasket for V-6 & V-8, Mercury - Mercruiser 27-53045-1. Fits MCM/MIE V-6 and V-8 engines. Replaces: GLM 31560; Mallory 9-60007, 9-60009 .
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🇺🇸 Ship from USA · On Agora since 2026
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