The Sea-Doo 4-TEC Oil Pressure Sensor is a genuine OEM replacement designed for 2002–2005 Sea-Doo 4-TEC personal watercraft. Replacing OEM part numbers 420256885 and 420256886, this sensor accurately monitors engine oil pressure and sends critical information to the engine management system, helping protect your engine from low oil pressure conditions.
A faulty Sea-Doo 4-TEC Oil Pressure Sensor can cause false warning lights, inaccurate oil pressure readings, or intermittent engine alarms. Replacing a worn or failed sensor with this genuine OEM component restores dependable operation and helps ensure your engine receives accurate oil pressure feedback for safe, reliable performance.
Manufactured to Sea-Doo’s original equipment standards, this oil pressure sensor offers precise fitment, exceptional durability, and long service life in demanding marine environments. It installs as a direct replacement with no modifications required, making it an ideal solution during routine maintenance or engine repairs.
This sensor is compatible with a range of 2002–2005 Sea-Doo 4-TEC models, including GTX, RXP, and RXT, as well as selected 4-TEC-powered Sea-Doo boats using the same oil pressure switch. Always verify your OEM part number and application before ordering.
Features
Genuine Sea-Doo OEM oil pressure sensor
Replaces OEM 420256885 and 420256886
Accurate engine oil pressure monitoring
Direct-fit replacement
OEM quality and reliability
Durable marine-grade construction
Easy installation
Specifications
SKU: 420256886
OEM Replaces: 420256885, 420256886
Brand: Sea-Doo
Product Type: Oil Pressure Sensor






