Powerhead Rebuild Kit - Mercury / Mariner 200 HP 2.5L O - Ring Head 00-10 .030 Over (2004, 2006, 2010) | WSM 100-20-23

Powerhead Rebuild Kit Mercury / Mariner 200 Hp 2.5L O-Ring Head 00-10 .030 Over

This WSM powerhead rebuild kit is a quality aftermarket replacement part designed for Mariner 6 Cyl 3.501 Bore 2.5L EFI 150 and 3 other compatible models.

It is suitable for service, repair and rebuild work where reliable fit, function and durability are important.

Key Features

• Quality aftermarket replacement part from WSM
• Engineered for dependable fit, function and service life
• Designed for marine and powersports repair and maintenance
• Compatible with 4 listed fitments

Product Details

• Brand: WSM
• WSM Part Number: 100-20-23
• Product: Powerhead Rebuild Kit
• Application: Mariner 6 Cyl 3.501 Bore 2.5L EFI 150 and 3 other compatible models

Product Fitment

This part is suitable for the following models:

• Mariner 6 Cyl 3.501 Bore 2.5L EFI 150 – All Years
• Mercury 6 Cyl 3.501 Bore 2.5L EFI 175 – 2000-2010
• Mercury 6 Cyl 3.501 Bore 2.5L EFI 200 – 2000-2004
• Mercury – 2000-2006

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:

• Gasket Kit Powerhead Mercury / Mariner 150 - 200 Hp 6 Cyl 2.5L EFI OEM# 27-815791A02 – 500-230
• Fuel Pump Mercury / Mariner 150 - 300 Hp 01-10 OEM# 881705T1 – 600-119
• Gasket Kit Powerhead Mercury / Mariner 135 - 200 Hp 6 Cyl 00-05 OEM# 27-815791A00 – 500-220
• Drain Plug Gasket Johnson / Evinrude / Mercury / Mariner / Mercruiser / Force / OMC 5 - 300 Hp OEM# 0307552 – 555-11

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