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Gasket Head - Mercury / Mariner 150 / 175 HP 2.4 Liter V6 (1991) OEM# 27-187861 | WSM 505-46

Gasket Head - Mercury / Mariner 150 / 175 HP 2.4 Liter V6 (1991) OEM# 27-187861 | WSM 505-46

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Gasket Head Mercury / Mariner 150 / 175 Hp 2.4 Liter V6 89-91 OEM# 27-187861

This WSM gasket head is a quality aftermarket replacement part designed for Mercury 6 Cyl 3.375 Steel Bore 2.4L XR-4 150 and 2 other compatible models.

It replaces selected OEM reference numbers including 27-187861, 27-187863, 27-18786T 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: 505-46
  • Product: Gasket Head
  • OEM Reference: 27-187861, 27-187863, 27-18786T
  • Application: Mercury 6 Cyl 3.375 Steel Bore 2.4L XR-4 150 and 2 other compatible models

Product Fitment

This part is suitable for the following models:

  • Mercury 6 Cyl 3.375 Steel Bore 2.4L XR-4 150 – 1990-1991
  • Mercury 6 Cyl 3.375 Steel Bore 2.4L XR-4 175 – 1990-1991
  • Mercury – 1991

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.

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

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