Gasket Head Cover - Mercury / Mariner 30-50 HP (1985, 1989, 1997) OEM# 27-437771 | WSM 505-30

Gasket Head Cover Mercury / Mariner 30 - 50 Hp 80-97 OEM# 27-437771

This WSM gasket head cover is a quality aftermarket replacement part designed for Mariner 4 Cyl 2.565 Bore Cross Flow 30 and 4 other compatible models.

It replaces selected OEM reference numbers including 27-437771, 27-437772, 27-96483, S18-2810 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 5 listed fitments
• Replaces selected OEM reference numbers listed below

Product Details

• Brand: WSM
• WSM Part Number: 505-30
• Product: Gasket Head Cover
• OEM Reference: 27-437771, 27-437772, 27-96483, S18-2810
• Application: Mariner 4 Cyl 2.565 Bore Cross Flow 30 and 4 other compatible models

Product Fitment

This part is suitable for the following models:

• Mariner 4 Cyl 2.565 Bore Cross Flow 30 – All Years
• Mercury 4 Cyl 2.565 Bore Cross Flow 40 – 1989-1997
• Mercury 4 Cyl 2.565 Bore Cross Flow 45 – 1989-1997
• Mercury 4 Cyl 2.565 Bore Cross Flow 50 – 1980-1989
• Mercury – 1980-1985

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:

• Water Pump Kit Complete Force / Mercury / Mariner / Mercruiser 30 - 300 Hp OEM# 18-3570 – 750-155
• Piston Clips Mercury / Mariner / Yamaha 15 - 50 Hp – 400-18
• O-Ring End Cap Mercury / Mariner / Mercruiser 30 - 135 Hp OEM# 25-20081 – 526-10
• Gasket Adapter Plate Mercury / Mariner 30 - 60 Hp 87-97 OEM# 27-385011 – 510-21

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