Description
The ProX Ring Set 02.4554 is engineered as an OEM?quality replacement for Kawasaki STX?15F, STX, and Ultra LX four stroke models. Precision machining and carefully chosen materials help these rings maintain compression and oil control in engines that often see long running hours and varied conditions. They are designed to meet or exceed original equipment standards for fit and durability.
- Replacement piston ring set for Kawasaki STX?15F (2004?2014), STX (2009?2010), and Ultra LX (2007?2014) four stroke watercraft.
- Manufactured using high quality ring steels and precise machining to match OEM specifications.
- Designed to restore proper sealing, compression, and oil control when paired with a serviceable piston and cylinder.
- Suitable for stock engines in recreational, rental, or light performance use.
- Intended as a direct, cost?effective alternative to OEM ring sets.
When installed on a correctly sized piston in a properly honed cylinder, this ProX ring set can help recover starting performance, reduce oil consumption, and stabilize idle quality. The consistent ring geometry supports even contact with the cylinder wall, promoting long term sealing and reduced blow?by. It is a practical choice for regular maintenance or top end refreshes on popular Kawasaki four stroke platforms.
Engine builders should check ring groove clearances, confirm cylinder finish and dimensions, and set ring end gaps to the recommended values. Replacing gaskets and inspecting pistons, bearings, and cooling systems will help protect the renewed top end. With careful installation and break in, the ProX 02.4554 ring set can contribute to many more hours of reliable Kawasaki STX?15F, STX, or Ultra LX service.
