Gasket Kit Powerhead - Mercury / Mariner 18-25 HP (1987, 1994, 2006) OEM# 27-41499A87 | WSM 500-198

Gasket Kit Powerhead Mercury / Mariner 18 - 25 Hp OEM# 27-41499A87

This WSM gasket kit powerhead is a quality aftermarket replacement part designed for Mariner 2 Cyl 18 and 5 other compatible models.

It replaces selected OEM reference numbers including 27-41499A87, 27-41499A88, S18-4334 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 6 listed fitments
• Replaces selected OEM reference numbers listed below

Product Details

• Brand: WSM
• WSM Part Number: 500-198
• Product: Gasket Kit Powerhead
• OEM Reference: 27-41499A87, 27-41499A88, S18-4334
• Application: Mariner 2 Cyl 18 and 5 other compatible models

Product Fitment

This part is suitable for the following models:

• Mariner 2 Cyl 18 – All Years
• Mercury 2 Cyl 2.562 Bore 20 – 1983-1987
• Mercury 2 Cyl 2.562 Bore 25 – 1980-1994
• Mercury 2 Cyl 2.562 Bore Mercosil Block 20 – 1983-1994
• Mercury 2 Cyl 2.562 Bore Mercosil Block 25 – 1994-2006
• Mercury – 1994-2006

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.

You May Also Need

Browse related parts for compatible models:

• Oil Seal Crankshaft Mercury / Mariner 15 - 25 Hp 79-06 OEM# 26-859741 – 550-28
• Carburetor Kit Mercury / Mariner 6 - 25 Hp OEM# 1395-9761 – 600-05
• Ignition Coil Mercury / Mariner 6 - 300 Hp 72-07 OEM# 184-0001 – 376-5186
• Piston Clips Mercury / Mariner / Yamaha 15 - 50 Hp – 400-18

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