Thermostat Housing Assembly - Mercury 135-400 HP Verado (2005-2018) OEM# 18-3631 | WSM 775-60

Thermostat Housing Assembly Mercury 135 - 400 Hp Verado OEM# 18-3631

This WSM thermostat housing assembly is a quality aftermarket replacement part designed for Mercury 6 Cyl 3.2283 Bore Verado 400 and 2 other compatible models.

It replaces selected OEM reference numbers including 18-3631, 892864T04, 8M0174561 and is suitable for service, repair and rebuild work.

Key Features

• Quality aftermarket replacement part from WSM
• Engineered for dependable fit, function and service life
• Designed for marine and powersports repair and maintenance
• Compatible with 17 listed fitments
• Replaces selected OEM reference numbers listed below

Product Details

• Brand: WSM
• WSM Part Number: 775-60
• Product: Thermostat Housing Assembly
• OEM Reference: 18-3631, 892864T04, 8M0174561
• Application: Mercury 6 Cyl 3.2283 Bore Verado 400 and 2 other compatible models

Product Fitment

This part is suitable for the following models:

• Mercury 6 Cyl 3.2283 Bore Verado 400 – 2015
• Mercury 6 Cyl 3.2283 Bore Verado 400 – 2016
• Mercury 6 Cyl 3.2283 Bore Verado 400 – 2017
• Mercury 6 Cyl 3.2283 Bore Verado 400 – 2018
• Mercury Verado 15 Spline 275 – 2005
• Mercury Verado 15 Spline 275 – 2006
• Mercury Verado 15 Spline 275 – 2007
• Mercury Verado 15 Spline 275 – 2008
• Mercury Verado 15 Spline 275 – 2009
• Mercury Verado 15 Spline 275 – 2010
• Mercury Verado 15 Spline 300 – 2008
• Mercury Verado 15 Spline 300 – 2009
• Mercury Verado 15 Spline 300 – 2010
• Mercury Verado 15 Spline 300 – 2011
• Mercury Verado 15 Spline 300 – 2012
• Mercury Verado 15 Spline 300 – 2013
• Mercury Verado 15 Spline 300 – 2014

Why Buy WSM

WSM is a trusted manufacturer of aftermarket marine and powersports parts, known for dependable quality, strong fitment coverage and workshop-ready replacement components.

You May Also Need

Browse related parts for compatible models:

• Float Switch FSM:Mercury 75 - 350 Hp Verado OEM# 880596504 – 47280G
• Oil Filter Mercury 200 - 400 Hp Verado 05-18 OEM# 18-7918 – 615-170
• Water Pump Kit Mercury 200 - 400 Hp 6 / 8 Cyl Verado OEM# 8M0078858 – 750-155-03
• CableTop Latch Cowling Mercury / Mariner Verado 200 - 400 Hp OEM# 888951 – 900-100

Please use the fitment guide, OEM references and images to confirm this is the correct part before ordering.