Mercury Thermostat - 8M0174561

Mercury Thermostat - 8M0174561

Mercury OEM thermostat and housing.

Fits: 

• 135-200HP 1.7L L4 Verado 4-Stroke (SN 1B227000 - 2B576734)
• 200-300HP 2.6L L6 Verado 4-stroke (G1-G4) (SN 2B144122 & Below)
• 200-300HP 2.6L L6 Verado 4-stroke (G5) (SN 2B144123 & Above)
• 350-400HP 2.6L L6 Verado 4-Stroke (SN 2B141617 &  Above)
• 350HP SCI 2.6L L6 4-Stroke (SN 1B716557 – 2B43542)
• 400R 2.6L L6 4-Stroke (SN 2B141124 & 3B342962)