12-Valve Intake/Exhaust Kit Triple Groove Sea-Doo 4-TEC – Ref. 420254298 / 420254682

Intake & Exhaust Valve Kit – Sea-Doo 4-TEC Engine

This complete kit of 12 valves (intake and exhaust) is designed for the overhaul or replacement of valves on Sea-Doo 4-TEC Rotax engines. It combines the two essential OEM part numbers: 420254298 (intake valves) and 420254682 (exhaust valves), for a complete cylinder head refurbishment in a single order. Ideal during engine maintenance, lapping, or after detecting a loss of compression. These are "triple groove" type valves; if your engine uses a single groove system, please choose the Sea-Doo 4-TEC GTX RXP RXT GTI XP Single Groove Intake/Exhaust Valve Kit – Ref. 420254682

Sea-Doo 4-TEC Compatibility

This valve kit is compatible with the following Sea-Doo models equipped with the Rotax 4-TEC engine:

• Sea-Doo GTI 130
• Sea-Doo GTI SE 130
• Sea-Doo GTX 155 / 185 / 215 / 255 / 260
• Sea-Doo RXP / RXP-X
• Sea-Doo RXT / RXT-X
• Sea-Doo XP 4-TEC

⚠️ Always check your serial number (VIN) and the original OEM part number before ordering to confirm exact compatibility with your model.

Kit Contents & Technical Specifications

• ✅ Quantity: 12 valves (6 intake + 6 exhaust)
• ✅ Intake reference: 420254298
• ✅ Exhaust reference: 420254682
• ✅ Application: Sea-Doo Rotax 4-TEC engine
• ✅ Material: High thermal resistance steel
• Condition: New
• Regulated substances: None
• Origin: China

Why Replace the Valves?

Valves are critical wear parts of the 4-TEC engine. Replacement is required in the event of loss of compression, hard starting, excessive fuel consumption, or during a complete cylinder head overhaul. Replacing the valves as a kit ensures a perfect balance between intake and exhaust, and significantly extends the engine's service life.

See Also – Complementary Engine Parts

Sea-Doo 4-TEC XP GTX RXP RXT GTI Intake/Exhaust Valve Kit – Ref. 420254682

Sea-Doo 4-TEC GTI / GTS / GTX / RXP / RXT Valve Cover Gasket – 130 to 300 HP