Quicksilver 8M0174561 Thermostat Assy

Mercury - Mercruiser 8M0174561 Thermostat Assy

Replacement thermostat housing 8M0174561 is for Mercury Verado outboards 135-200hp (4-cylinder engines serial No. 1B311420 and above), 200-300hp (6-cylinder engines serial No. 1B390143 to 2B144127, prior to Gen V), 200-300hp (6-cylinder engines serial No. 2B144123 and above, Gen V) and 350-400hp (6-cylinder engines). Includes the thermostat. The thermostat housing is made of corrosion resistant, high temperature, molded, composite material to deliver increased service life.

Features:

• 140 degree Replacement thermostat housing for select 135 hp through 400 hp Mercury 4-stroke Verado outboards. 
• Corrosion resistant, high temperature, molded, composite material delivers increased service life
• Housing incorporates a 90 degree bend on the outflow side and internal stainless steel thermostat.

Fits:

• Mercury 135hp EFI Verado 4 Cylinder - 4 Stroke
• Mercury 150hp EFI Verado 4 Cylinder - 4 Stroke
• Mercury 175hp EFI Verado 4 Cylinder - 4 Stroke
• Mercury 200hp Pro Verado 6 Cylinder - 4 Stroke
• Mercury 200hp Verado 4 Cylinder - 4 Stroke
• Mercury 200hp Verado 6 Cylinder - 4 Stroke
• Mercury 225hp Verado 6 Cylinder - 4 Stroke
• Mercury 250hp Pro Verado 6 Cylinder - 4 Stroke
• Mercury 250hp Verado 6 Cylinder - 4 Stroke
• Mercury 275hp Verado 6 Cylinder - 4 Stroke
• Mercury 300hp Pro Verado 6 Cylinder - 4 Stroke
• Mercury 300hp Verado 6 Cylinder - 4 Stroke
• Mercury 350hp 2.6L L6 Pro Verado - 4 Stroke
• Mercury 350hp 2.6L L6 Verado - 4 Stroke
• Mercury 400hp 2.6L L6 Verado - 4 Stroke
• Mercury 400R 2.6L L6 Racing - 4 Stroke

Replaces:

• Mercury 892864T04
• Sierra 18-3631

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