Sierra 18-79953 VST Filter Kit for Yamaha Outboard Engines

The Sierra 18-79953 VST Filter Kit is a complete maintenance solution designed for select Yamaha four-stroke outboard engines. This kit provides essential components for servicing the Vapor Separator Tank (VST), a critical part of the fuel delivery system that filters fuel before it enters the high-pressure fuel injection system.

What is a VST Filter?

The VST (Vapor Separator Tank) is attached to the electric fuel pump on Yamaha outboards and filters fuel one final time before it's pressurized into the fuel injection rails. The VST filter prevents debris, water, and deposits from reaching the fuel injectors, protecting your engine from damage and maintaining optimal performance.

Key Features:

• Direct OEM replacement for Yamaha part numbers 68F-13915-00-00 and 66K-14984-00-00
• Engineered to meet or exceed OEM specifications for reliable performance
• Designed for use with ethanol-based fuels (E10 compatible)
• Essential preventive maintenance component for long-term engine health
• Sierra quality construction built for harsh marine environments

Compatible Models:

Fits Yamaha LZ150 (2000-2005), LZ200 (2000-2011), LZ250 (2003-2005), LZ300 (2004-2006), VZ150 (2000-2011), VZ175 (2001-2011), VZ200 (2001-2009), VZ225 (2003-2009), VZ250 (2003-2009), VZ300 (2004-2009), Z150 (2000-2005), Z175 (2001-2005), Z200 (2000-2011), Z250 (2003-2005), and Z300 (2004-2006) outboard engines.

Maintenance Recommendation:

Yamaha recommends inspecting and replacing VST filters every 300-500 hours of operation or every 3-5 years as part of routine preventive maintenance. Regular replacement helps prevent fuel system problems, maintains proper fuel pressure, and protects expensive fuel injectors from contamination.

Trust Sierra Marine for premium-quality aftermarket parts that deliver OEM performance and durability. This VST filter kit helps ensure clean fuel delivery and reliable engine operation for years to come.