SBT Cylinder Head Rebuild Kit 12004-1154 for Kawasaki STX-12F, STX-15F, Ultra, SX-R 2003-2026

This is a cylinder head rebuild kit for four-stroke Kawasaki jet skis, matching OEM numbers 12004-1154, 12005-3703 and 49078-1194. It covers the STX-12F, STX-15F, STX 160 series, SX-R and the Ultra 250X through Ultra 310 models. Use it when you have the head off and the valves, springs or guide seals are worn and need to be replaced.

Fits

• Kawasaki STX-12F (2003-2007)
• Kawasaki STX-15F / STX 15-F (2004-2019)
• Kawasaki STX 160 / STX 160LX / STX 160X (2020-2026)
• Kawasaki SX-R (2017-2024)
• Kawasaki Ultra 250X / Ultra 260X / Ultra 260LX (2007-2010)
• Kawasaki Ultra LX (2007-2022)
• Kawasaki Ultra 300X / Ultra 300LX (2011-2013)
• Kawasaki Ultra 310X / 310X SE / 310R / 310LX / 310LX-S (2014-2026)
• Kawasaki Ultra 160LX / Ultra 160LX-S (2023-2026)

What's included

• Intake valves
• Exhaust valves
• Outer valve springs
• Inner valve springs
• Valve guide seals

Replaces OEM part numbers

12004-1154 · 12005-3703 · 49078-1194

Not sure it fits your ski? Call or text 954-914-6465 with your hull ID (HIN) and we'll confirm before you order.