Overview

This coolant temperature sensor is designed for Sea-Doo jet skis equipped with the Rotax 4-Tec engine. It measures the cooling system's temperature in real-time and transmits the information to the ECU, allowing for optimal engine management. Ideal for replacing a faulty sensor, one giving erroneous readings, or triggering an engine light.

Technical Specifications

Replacement Part Number(s): 278002895 / 278001016 / RF1701SR133JU / 0281002209 / 0280130131
Packaging: Sold individually (1 pc) or in a pack of 10 (progressive discount)
Weight: 0.21 kg
Condition: New
Quality: High quality — direct OEM replacement
Origin: Mainland China

Compatibility

This sensor is compatible with the following models:

WILLIAMS Jet Tenders

WILLIAMS 280 Minijet
WILLIAMS 285/325 Turbojet (since 2019)
WILLIAMS 345/395/435/400/460/520 Sportjet

Sea-Doo (models equipped with OEM sensor 278002895)

XP — 1998 to 2004
Wake Pro 215 — 2009 to 2011
Wake 155 — 2009 to 2012
RXT X 260 — 2010 to 2012
RXT 260 — 2010 to 2012
RXT 255 — 2009
RXT 215 — 2008 to 2010
RXP X 260 — 2012
RXP X 255 — 2008 to 2011
RXP 215 — 2007 to 2009
RXP 155 — 2007 to 2008
RX — 2000 to 2003
LRV — 2000 to 2003
GTX S 155 — 2012
GTX 4-Tec — 2002 to 2007
GTX 260 — 2010 to 2012
GTX 255 — 2009
GTX 215 — 2008 to 2011
GTX 155 — 2009 to 2012
GTX — 1998 to 2003
GTS 130 — 2011 to 2012
GTI 155 — 2008 to 2012
GTI 130 — 2008 to 2012
GTI — 2004 to 2006
GSX — 1998 to 2000
3D — 2005 to 2007

⚠️ Always check the OEM part number of your original sensor before ordering.

Why choose this part?

✅ Direct replacement — no modifications needed for installation
✅ Customer rating: 4.83/5 — 6 verified reviews
✅ Available individually or in packs of 10 — progressive discount for professionals
✅ In stock — fast shipping from our warehouse