Air Filter - Mercury / Mariner 135-225 HP DFI (2002, 2006, 2010, 2012, 2014, 2018) OEM# 18-7997 | WSM 605-101

Air Filter Mercury / Mariner 135 - 225 Hp DFI 99-18 OEM# 18-7997

This WSM air filter is a quality aftermarket replacement part designed for Mariner 6 Cyl 3.501 Bore 2.5L Optimax 135 and 6 other compatible models.

It replaces selected OEM reference numbers including 18-7997, 35-853333, 35-853333T 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 9 listed fitments
• Replaces selected OEM reference numbers listed below

Product Details

• Brand: WSM
• WSM Part Number: 605-101
• Product: Air Filter
• OEM Reference: 18-7997, 35-853333, 35-853333T
• Application: Mariner 6 Cyl 3.501 Bore 2.5L Optimax 135 and 6 other compatible models

Product Fitment

This part is suitable for the following models:

• Mariner 6 Cyl 3.501 Bore 2.5L Optimax 135 – All Years
• Mercury 6 Cyl 3.501 Bore 2.5L Optimax 150 – 1999-2012
• Mercury 6 Cyl 3.501 Bore 2.5L Sport Jet 200 – 1999-2014
• Mercury 6 Cyl 3.6265 Bore 3L Optimax 200 – 2001-2006
• Mercury 6 Cyl 3.6265 Bore 3L Optimax 225 – 2010
• Mercury 6 Cyl 3.6265 Bore 3L Pro XS 150 – 1999-2002
• Mercury – 2008-2018
• 1999-2002
• 2010-2018

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:

• Fuel Pump Mercury / Mariner 135 - 225 Hp DFI OEM# 855427A1 – 600-113
• Ignition Coil Mercury / Mariner 110 - 300 Hp 2.5L / 3L DFI OEM# 339-850227 – 376-6991
• O-Ring Temperature Sensor Mercruiser / Mercury / Mariner 20 - 400 Hp 96-18 OEM# 25-62702 – 526-08
• Oil Filter Mercury 75 - 300 Hp OEM# 35-875284 – 600-302

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