Poppet Valve Diaphragm - Mercury / Mariner 110-225 HP (2000, 2004-2006, 2010, 2012-2014, 2018) OEM# 14479 | WSM 540-33

Poppet Valve Diaphragm Mercury / Mariner 110 - 225 Hp 00-18 OEM# 14479

This WSM poppet valve diaphragm is a quality aftermarket replacement part designed for Mariner 6 Cyl 2.5L XS 200 and 14 other compatible models.

It replaces selected OEM reference numbers including 14479, 144791 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 16 listed fitments
• Replaces selected OEM reference numbers listed below

Product Details

• Brand: WSM
• WSM Part Number: 540-33
• Product: Poppet Valve Diaphragm
• OEM Reference: 14479, 144791
• Application: Mariner 6 Cyl 2.5L XS 200 and 14 other compatible models

Product Fitment

This part is suitable for the following models:

• Mariner 6 Cyl 2.5L XS 200 – All Years
• Mercury 6 Cyl 3.125 Bore 2L 150 – 2001-2006
• Mercury 6 Cyl 3.501 Bore 2.5L 135 – 2000-2005
• Mercury 6 Cyl 3.501 Bore 2.5L 200 – 2000
• Mercury 6 Cyl 3.501 Bore 2.5L EFI 150 – 2000-2005
• Mercury 6 Cyl 3.501 Bore 2.5L EFI 175 – 2002-2010
• Mercury 6 Cyl 3.501 Bore 2.5L EFI 200 – 2002-2004
• Mercury 6 Cyl 3.501 Bore 2.5L Jet 110 – 2002-2006
• Mercury 6 Cyl 3.501 Bore 2.5L Jet 140 – 2006-2013
• Mercury Mercury – 2000-2005
• Mercury 6 Cyl 3.501 Bore 2.5L Optimax 150 – 2001-2012
• Mercury 6 Cyl 3.501 Bore 2.5L Optimax 175 – 2001-2014
• Mercury 6 Cyl 3.625 Bore 3L EFI 225 – 2001-2014
• Mercury 6 Cyl 3.6265 Bore 3L Pro XS 150 – 2002-2004
• 6 Cyl 3.6265 Bore 3L Pro XS 175 – 2010-2018
• 2008-2018

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 Cork Mercury 105 - 300 Hp OEM# 27-11338 – 540-30
• O-Ring Cylinder Head Mercury / Mariner 110 - 240 Hp V6 2.5L OEM# 25-8M0149612 – 526-26
• O-Ring Cylinder Head Mercury / Mariner 110 - 240 Hp V6 2.5L OEM# 859772 – 526-25
• Gasket Divider Plate Mercury / Mariner 110 - 240 Hp OEM# 27-190506 – 521-32

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