Gasket Head Cover - Mercury / Mariner 150-225 HP V6 (1981-1982, 1985, 1988) OEM# 27-65788 | WSM 505-40

Gasket Head Cover Mercury / Mariner 150 - 225 Hp V6 76-88 OEM# 27-65788

This WSM gasket head cover is a quality aftermarket replacement part designed for Mariner 6 Cyl 3.125 Bore 2L 150 and 7 other compatible models.

It replaces selected OEM reference numbers including 27-65788 and is suitable for service, repair and rebuild work.

Key Features

• Quality replacement gasket designed for dependable sealing performance
• Ideal for service, repair and engine rebuild work
• Manufactured for fit, durability and reliable installation
• Compatible with 8 listed fitments
• Replaces selected OEM reference numbers listed below

Product Details

• Brand: WSM
• WSM Part Number: 505-40
• Product: Gasket Head Cover
• OEM Reference: 27-65788
• Application: Mariner 6 Cyl 3.125 Bore 2L 150 and 7 other compatible models

Product Fitment

This part is suitable for the following models:

• Mariner 6 Cyl 3.125 Bore 2L 150 – All Years
• Mercury 6 Cyl 3.125 Bore 2L 175 – 1978-1985
• Mercury 6 Cyl 3.375 Bore 2.4L 175 – 1976-1981
• Mercury 6 Cyl 3.375 Bore 2.4L 200 – 1981-1982
• Mercury 6 Cyl 3.375 Bore 2.4L 225 – 1978-1982
• Mercury 6 Cyl 3.375 Chrome Bore 2.4L 175 – 1980-1981
• Mercury 6 Cyl 3.375 Chrome Bore 2.4L 200 – 1983-1988
• Mercury – 1982-1988

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:

• O-Ring End Cap Mercury / Mariner 150 - 250 Hp OEM# 25-67206 – 526-27
• Bearing Needles Mercury / Mariner 105 - 240 Hp Big Pin OEM# 29-822553 – 010-137-34
• Propeller Shaft Mercury / Mariner 105 - 225 Hp OEM# 44-94148 – 449-122
• Gasket Head Cover Mercury / Mariner 135 - 200 Hp 6 Cyl 78-88 OEM# 27-96278 – 505-37

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