Poppet Valve Diaphragm - Mercury / Mariner 30-125 HP (1997, 2007, 2012, 2014-2015) OEM# 812887002 | WSM 540-36

Poppet Valve Diaphragm Mercury / Mariner 30 - 125 Hp 91-14 OEM# 812887002

This WSM poppet valve diaphragm is a quality aftermarket replacement part designed for Mariner 2 Cyl 2.992 Bore 30 and 11 other compatible models.

It replaces selected OEM reference numbers including 812887002, 8128871 and is suitable for service, repair and rebuild work.

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 13 listed fitments
• Replaces selected OEM reference numbers listed below

Product Details

• Brand: WSM
• WSM Part Number: 540-36
• Product: Poppet Valve Diaphragm
• OEM Reference: 812887002, 8128871
• Application: Mariner 2 Cyl 2.992 Bore 30 and 11 other compatible models

Product Fitment

This part is suitable for the following models:

• Mariner 2 Cyl 2.992 Bore 30 – All Years
• Mercury 2 Cyl 2.992 Bore 40 – 1994-2007
• Mercury 2 Cyl 40 – 1994-2007
• Mercury 3 Cyl 2.955 Bore Looper 50 – 2014
• Mercury 3 Cyl 2.955 Bore Looper 60 – 1991-1997
• Mercury 3 Cyl 2.992 Bore 55 – 1991-1997
• Mercury 3 Cyl 3.6255 Bore 1.5L Optimax 115 – 1991-1997
• Mercury 3 Cyl 3.6255 Bore 1.5L Optimax 125 – 2004-2014
• Mercury 3 Cyl 3.6255 Bore 1.5L Optimax 80 – 2006-2012
• Mercury Mercury – 2007-2014
• Mercury 3 Cyl Jet 45 – 2004-2014
• 3 Cyl Pro XS 115 – 1991-1997
• 2010-2015

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:

• Gasket Carburetor Mercury / Mariner 30 - 125 Hp OEM# 27-15172 – 516-17
• O-Ring Oil Pump Mercruiser / Mercury / Mariner 30 - 300 Hp 90-21 OEM# 25-48462 – 526-22
• Gasket Thermostat Mercury / Mariner 30 - 60 Hp 91-07 OEM# 27-8128672 – 540-26-01
• Carburetor Kit Mercury / Mariner 30 - 125 Hp OEM# 1395-811223 – 600-15

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