Kawasaki STX 160 & STX-15F Parts & Performance Upgrades
Parts for the Kawasaki STX 160, 160X and 160LX (2020–2026), the STX-15F (2004–2019) and the earlier STX-12F (2003–2007). The STX 160 and STX-15F both run the 1,498cc naturally aspirated four-cylinder; the 12F runs the smaller 1,199cc. Check the model in each product title.
That 1500 engine is the same one in the SX-R 1500 and the NA Ultra LX, so engine components (pistons, rods, cams, valves, injectors, starters, thermostats) cross-fit all three. Hull, handling and pump-mount parts are STX-specific.
What's in this collection
- Engine & service: OEM and APE internals, gaskets, valve springs, thermostats, sensors and starters for the 1500
- Intake & exhaust: air filters, intake components and exhaust parts for the 1500 and 1200
- Pump & driveline: Solas impellers, wear rings, pump seal kits and cooling
- Hull & handling: intake grates, ride plates, handlebars and controls
- ECU tuning: the STX-15F and STX 160 share the SX-R's ECU, so our Kawasaki 1500 mail-in reflash applies
Same engine we race
We race the Kawasaki 1500 in pro stand-up competition, so the engine parts here are the ones we build and trust. For a stock STX, start with a 1500 ECU tune, then intake and impeller. Tell us your year and model before you order and we'll confirm fitment.