Gasket Sound Attenuator - Mercury / Mariner 135-200 HP (1990-1991) OEM# 27-188891 | WSM 516-28

Gasket Sound Attenuator Mercury / Mariner 135 - 200 Hp 89-91 OEM# 27-188891

This WSM gasket sound attenuator is a quality aftermarket replacement part designed for Mariner 6 Cyl 3.125 Bore 2L 135 and 7 other compatible models.

It replaces selected OEM reference numbers including 27-188891 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: 516-28
• Product: Gasket Sound Attenuator
• OEM Reference: 27-188891
• Application: Mariner 6 Cyl 3.125 Bore 2L 135 and 7 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 – 1990-1991
• Mercury 6 Cyl 3.375 Chrome Bore 2.4L 175 – 1990-1991
• Mercury 6 Cyl 3.375 Chrome Bore 2.4L 200 – 1990-1991
• Mercury 6 Cyl 3.375 Steel Bore 2.4L XR-4 175 – 1989-1990
• Mercury 6 Cyl 3.501 Bore 2.5L 200 – 1991
• Mercury 6 Cyl 3.501 Bore 2.5L EFI 175 – 1991
• Mercury – 1990-1991

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.

You May Also Need

Browse related parts for compatible models:

• Propeller Shaft Mercury / Mariner 105 - 225 Hp OEM# 44-94148 – 449-122
• Bearing Needles Mercury / Mariner 105 - 240 Hp Big Pin OEM# 29-822553 – 010-137-34
• Gasket Base Mercury / Mariner 105 - 220 Hp OEM# 27-99176 – 510-33
• O-Ring Oil Pump Mercury / Mariner 105 - 300 Hp OEM# 25-11379 – 526-21

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