Thermostat Housing Assembly - Mercury 3.4L-4.6L Verado (2019-2021) OEM# 8M0137816 | WSM 775-70

Thermostat Housing Assembly Mercury 3.4L - 4.6L Verado OEM# 8M0137816

This WSM thermostat housing assembly is a quality aftermarket replacement part designed for Mercury 6 Cyl 4 Stroke 200 and 2 other compatible models.

It replaces selected OEM reference numbers including 8M0137816, 8M0162139 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 9 listed fitments
• Replaces selected OEM reference numbers listed below

Product Details

• Brand: WSM
• WSM Part Number: 775-70
• Product: Thermostat Housing Assembly
• OEM Reference: 8M0137816, 8M0162139
• Application: Mercury 6 Cyl 4 Stroke 200 and 2 other compatible models

Product Fitment

This part is suitable for the following models:

• Mercury 6 Cyl 4 Stroke 200 – 2019
• Mercury 6 Cyl 4 Stroke 200 – 2020
• Mercury 6 Cyl 4 Stroke 200 – 2021
• Mercury 8 Cyl 4 Stroke 250 – 2019
• Mercury 8 Cyl 4 Stroke 250 – 2020
• Mercury 8 Cyl 4 Stroke 250 – 2021
• Mercury 8 Cyl 4 Stroke 300 – 2019
• Mercury 8 Cyl 4 Stroke 300 – 2020
• Mercury 8 Cyl 4 Stroke 300 – 2021

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:

• Fuel / Water Separator Kit Mercury 175 - 300 Hp 3.4L / 4.6L 4-Stroke OEM# 18-7519 – 600-410
• Oil Filter Mercury / Mariner 135 - 450 Hp Verado 06-14 OEM# 35-877767K01 – 615-160
• Oil Filter Mercury 200 - 400 Hp Verado 05-18 OEM# 18-7918 – 615-170
• Water Pump Impeller Mercruiser / Mercury / Mariner / Honda 30 - 350 Hp OEM# 19210-ZW1-003 – 700-155

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