ProX Exhaust Valve and Spring Conversion Kit 28.SES3338-1 for Suzuki RM-Z250 2007-2016

Latest addition to the ProX program is the Exhaust Valve & Spring Kits. This kit is offered as an alternative where the OEM application uses Titanium valves. ProX has now developed the Exhaust Valve & Spring Kits, containing a set of steel intake or exhaust valves plus a set of specially designed stronger valve springs. The ProX kit just replaces the OEM valves & valve springs and can be installed using the OEM retainers, bases and valve seals.

The ProX Exhaust Valve and Spring Conversion Kit is designed for Suzuki RM-Z250 models from 2007 through 2016 that originally use titanium exhaust valves. This complete replacement package upgrades the OEM valve arrangement with durable steel valves and specially developed stronger valve springs. The kit provides a practical solution for riders and technicians seeking improved durability and reliable performance under demanding engine conditions.

Each valve features a nitrided surface treatment that increases microhardness and provides a smooth finish to help reduce friction between the valve stem and guide. The included springs are manufactured from premium chrome vanadium steel to accommodate the additional weight of the steel valves while maintaining dependable operation at high RPM. The components are engineered to replace the original exhaust valves and valve springs without requiring further engine modifications.

Installation can be completed using the OEM retainers, spring bases, and valve seals, allowing the cylinder head to be rebuilt with commonly retained factory hardware. The ProX kit is supplied as a complete, efficient replacement package for straightforward service and long-term engine durability. Manufacturer and vendor part number 28.SES3338-1, this ProX kit fits 2007-2016 Suzuki RM-Z250 motorcycles.

Features:

• Steel exhaust valves provide increased durability and reduced wear under extreme operating conditions.
• Nitrided valve surfaces deliver high microhardness and a smooth finish that helps reduce friction between the valve stem and guide.
• Stronger valve springs are designed to accommodate the additional weight of the steel valves.
• Chrome vanadium steel springs support performance and durability during high-RPM operation.
• Compatible with OEM retainers, spring bases, and valve seals without additional engine modifications.
• Complete replacement package for convenient and cost-efficient cylinder head service.
• Fits 2007-2016 Suzuki RM-Z250 models.
• Brand: ProX; Manufacturer and vendor part number: 28.SES3338-1.

Fitment:
2007 Suzuki RM-Z250
2008 Suzuki RM-Z250
2009 Suzuki RM-Z250
2010 Suzuki RM-Z250
2011 Suzuki RM-Z250
2012 Suzuki RM-Z250
2013 Suzuki RM-Z250
2014 Suzuki RM-Z250
2015 Suzuki RM-Z250
2016 Suzuki RM-Z250
2017 Suzuki RM-Z250
2018 Suzuki RM-Z250
2019 Suzuki RM-Z250
2020 Suzuki RM-Z250
2021 Suzuki RM-Z250
2022 Suzuki RM-Z250
2023 Suzuki RM-Z250
2024 Suzuki RM-Z250
2025 Suzuki RM-Z250