Gasket Head - Mercury / Mariner 135-150 HP 6 Cyl 2.0L (2000, 2005) OEM# 27-18785 | WSM 505-38

Gasket Head Mercury / Mariner 135 - 150 Hp 6 Cyl 2.0L 86-05 OEM# 27-18785

This WSM gasket head is a quality aftermarket replacement part designed for Mariner 6 Cyl 3.125 Bore 2L 135 and 2 other compatible models.

It replaces selected OEM reference numbers including 27-18785, 27-187853, 27-18785T 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 3 listed fitments
• Replaces selected OEM reference numbers listed below

Product Details

• Brand: WSM
• WSM Part Number: 505-38
• Product: Gasket Head
• OEM Reference: 27-18785, 27-187853, 27-18785T
• Application: Mariner 6 Cyl 3.125 Bore 2L 135 and 2 other compatible models

Product Fitment

This part is suitable for the following models:

• Mariner 6 Cyl 3.125 Bore 2L 135 – All Years
• Mercury 6 Cyl 3.125 Bore 2L 150 – 1986-2000
• Mercury – 1990-2005

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.

About the Mercury 135-200 HP Outboard Engines

Mercury and Mariner 135-200 HP outboard engines are widely used across recreational and performance boating applications. These engines have long-standing aftermarket support, making quality replacement gaskets, ignition, fuel and powerhead parts important for service and rebuild work.

You May Also Need

Browse related parts for compatible models:

• Piston Kit Mercury / Mariner 135 - 200 Hp Bottom Guided Starboard .015 Over OEM# 765-7042A2 – 100-50-045SK
• Propeller Shaft Mercury / Mariner 105 - 225 Hp OEM# 44-94148 – 449-122
• Gasket Kit Powerhead Mercury / Mariner 105 - 200 Hp 6 Cyl 92-99 OEM# 27-815791A92 – 500-228
• Gasket Kit Powerhead Mercury / Mariner 105 - 200 Hp 92-99 OEM# 27-815791A92 – 500-236

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