Gasket Kit Powerhead - Mercury 150 / 175 HP 6 Cyl (1990) OEM# 27-11338A88 | WSM 500-226

Gasket Kit Powerhead Mercury 150 / 175 Hp 6 Cyl 76-91 OEM# 27-11338A88

This WSM gasket kit powerhead is a quality aftermarket replacement part designed for Mercury, Mercury, Mercury, Mercury, Mercury 6 Cyl 3.375 Bore 2.4L 175, 6 Cyl 3.375 Chrome Bore 2.4L 175, 6 Cyl 3.375 Steel Bore 2.4L XR-4 150, 6 Cyl 3.501 Bore 2.5L EFI 175.

It replaces selected OEM reference numbers including 27-11338A88 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 1 listed fitment
• Replaces selected OEM reference numbers listed below

Product Details

• Brand: WSM
• WSM Part Number: 500-226
• Product: Gasket Kit Powerhead
• OEM Reference: 27-11338A88
• Application: Mercury, Mercury, Mercury, Mercury, Mercury 6 Cyl 3.375 Bore 2.4L 175, 6 Cyl 3.375 Chrome Bore 2.4L 175, 6 Cyl 3.375 Steel Bore 2.4L XR-4 150, 6 Cyl 3.501 Bore 2.5L EFI 175

Product Fitment

This part is suitable for the following models:

• Mercury, Mercury, Mercury, Mercury, Mercury 6 Cyl 3.375 Bore 2.4L 175, 6 Cyl 3.375 Chrome Bore 2.4L 175, 6 Cyl 3.375 Steel Bore 2.4L XR-4 150, 6 Cyl 3.501 Bore 2.5L EFI 175 – 1976-1981, 1981-1982, 1983-1990, 1988-1991, 1989-1990

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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• Damper Crankcase Mercury Verado 75 - 350 Hp OEM# 23-893392001 – 527-25
• Check Valve Oil Tank Mercury / Mariner 30 - 225 Hp 94-14 OEM# 22-424254 – 601-297

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