• Type of gasket: Thermostat
• Model: Mercruiser
• Kit: No
• Number: 18-2831-9

Replaces: Mercruiser 27-475901
4 & 6 Cyl.

• SAME-DAY SHIPPING on all orders placed by 11am EST. Delivery delays may vary depending on the carrier. FREE SHIPPING on orders over $99.99
• Type of gasket: Thermostat
• Model: Mercruiser
• Kit: No
• Number: 18-2831-9Replaces: Mercruiser 27-475901 4 & 6 Cyl.

SAME-DAY SHIPPING on all orders placed by 11am EST. Delivery delays may vary depending on the carrier. FREE SHIPPING on orders over $99.99SIERRA