{"product_id":"royal-enfield-himalayan-450-engine-coolant-temperature-sensor-rlv00009-c","title":"Royal Enfield Engine Coolant Temperature Sensor RLV00009\/C for Himalayan 450","description":"\u003cp\u003eRoyal Enfield \u003cstrong\u003eRLV00009\/C Engine Coolant Temperature Sensor\u003c\/strong\u003e is a genuine temperature sensor used in the liquid-cooled engine system of compatible \u003cstrong\u003eRoyal Enfield Himalayan 450\u003c\/strong\u003e applications. It is commonly searched as a \u003cstrong\u003ecoolant temperature sensor, engine temperature sensor, radiator temperature sensor, cylinder head temperature sensor, ECU temperature sensor\u003c\/strong\u003e or \u003cstrong\u003eHimalayan 450 temperature sensor\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis sensor helps the motorcycle’s ECU monitor engine coolant temperature so the engine management system can respond correctly during cold starts, warm running, traffic conditions and high-temperature operation. A faulty or incorrect temperature sensor can lead to poor temperature reading, warning-light concerns, irregular fan behaviour, poor fuelling response, hard starting, overheating-related diagnosis issues or unnecessary repeat troubleshooting.\u003c\/p\u003e\n\u003cp\u003eUse this genuine Royal Enfield sensor only where \u003cstrong\u003eRLV00009\/C\u003c\/strong\u003e or the \u003cstrong\u003eRLV00009 engine coolant temperature sensor\u003c\/strong\u003e reference is specified for the exact motorcycle. This is not the same as older air\/oil-cooled engine oil temperature sensors used on UCE, J-Series or 650 Twin platforms. Because temperature sensors may look similar but differ by connector, calibration, thread, sealing and ECU compatibility, part-number matching is important before ordering.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Royal Enfield spare part\u003c\/li\u003e\n\u003cli\u003ePart number: \u003cstrong\u003eRLV00009\/C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePart family reference: \u003cstrong\u003eRLV00009\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFactory description: \u003cstrong\u003eEngine Coolant Temperature Sensor\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eUsed in compatible liquid-cooled Royal Enfield 450 engine applications\u003c\/li\u003e\n\u003cli\u003eHelps provide coolant-temperature input to the ECU\u003c\/li\u003e\n\u003cli\u003eUseful for engine overheating diagnosis, fan-operation diagnosis and sensor-fault replacement\u003c\/li\u003e\n\u003cli\u003eCorrect OE-style replacement where the parts catalogue specifies RLV00009\/C\u003c\/li\u003e\n\u003cli\u003eBetter fitment and calibration confidence than universal temperature sensors\u003c\/li\u003e\n\u003cli\u003eRecommended for workshops, touring riders and Himalayan 450 service stock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBuyer Search Names \/ Internal Search Keywords\u003c\/h2\u003e\n\u003cp\u003eCustomers may also search this part as: \u003cstrong\u003eHimalayan 450 coolant temperature sensor, Himalayan 450 engine temperature sensor, Royal Enfield temperature sensor, RLV00009C, RLV00009\/C, RLV00009 sensor, radiator temperature sensor, ECU temperature sensor, engine coolant sensor, Sherpa 450 temperature sensor, Himalayan 450 overheating sensor, Royal Enfield cooling sensor.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eVerified Compatibility\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine \/ Platform\u003c\/th\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003cth\u003eFitment Status\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoyal Enfield\u003c\/td\u003e\n\u003ctd\u003eHimalayan 450\u003c\/td\u003e\n\u003ctd\u003e452cc Sherpa liquid-cooled engine\u003c\/td\u003e\n\u003ctd\u003eEngine coolant temperature sensor\u003c\/td\u003e\n\u003ctd\u003eCompatible where \u003cstrong\u003eRLV00009\/C\u003c\/strong\u003e or \u003cstrong\u003eRLV00009\u003c\/strong\u003e is specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatibility Note for Guerrilla 450\u003c\/h2\u003e\n\u003cp\u003eThe RLV00009 sensor family appears in 450-platform parts references, and Himalayan 450 \/ Guerrilla 450 share the liquid-cooled Sherpa 450 engine family. However, unless the product package, VIN-based EPC, or official Royal Enfield spares page confirms \u003cstrong\u003eRLV00009\/C\u003c\/strong\u003e for a specific Guerrilla 450 variant, this listing should be purchased primarily for Himalayan 450 applications. For Guerrilla 450, confirm the exact part number before ordering.\u003c\/p\u003e\n\u003ch2\u003eImportant Fitment Note\u003c\/h2\u003e\n\u003cp\u003eThis listing is for the \u003cstrong\u003eengine coolant temperature sensor only\u003c\/strong\u003e. It is \u003cstrong\u003enot\u003c\/strong\u003e the radiator fan, not the radiator, not the thermostat, not the thermostat housing, not the coolant hose, not the ECU, not the wiring harness, not the engine oil temperature sensor, and not a complete cooling system kit.\u003c\/p\u003e\n\u003cp\u003eDo not order only by visual appearance. Similar-looking sensors can have different connector shapes, resistance curves, thread sizes, sealing requirements and ECU calibration. Match \u003cstrong\u003eRLV00009\/C\u003c\/strong\u003e before purchase.\u003c\/p\u003e\n\u003cp\u003eDo \u003cstrong\u003enot\u003c\/strong\u003e order for Himalayan 411, Scram 411, Classic 350 UCE, Classic 350 Reborn, Bullet 350, Meteor 350, Hunter 350, Interceptor 650, Continental GT 650, Super Meteor 650, Shotgun 650, Bear 650, Thunderbird, Electra or Standard models unless the same part number is confirmed for that exact motorcycle.\u003c\/p\u003e\n\u003ch2\u003eWhen Should This Sensor Be Replaced?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEngine coolant temperature sensor fault is confirmed during diagnosis\u003c\/li\u003e\n\u003cli\u003eTemperature reading is incorrect or inconsistent\u003c\/li\u003e\n\u003cli\u003eCooling fan operation is irregular after checking fan, relay and wiring\u003c\/li\u003e\n\u003cli\u003eSensor connector or body is damaged\u003c\/li\u003e\n\u003cli\u003eCoolant-temperature related ECU error code is present\u003c\/li\u003e\n\u003cli\u003eSensor has been physically damaged during cylinder head, thermostat or cooling-system service\u003c\/li\u003e\n\u003cli\u003eWorkshop needs the correct Himalayan 450 coolant sensor instead of a universal sensor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy This Part Matters\u003c\/h2\u003e\n\u003cp\u003eThe engine coolant temperature sensor is a small but important input for a liquid-cooled motorcycle engine. The ECU depends on accurate temperature information for correct running strategy, cold-start behaviour, fan-control logic and overheating diagnosis. A wrong or failing sensor can create misleading symptoms and lead to unnecessary replacement of radiator fans, relays, wiring or cooling-system parts.\u003c\/p\u003e\n\u003cp\u003eUsing the correct genuine Royal Enfield \u003cstrong\u003eRLV00009\/C\u003c\/strong\u003e helps maintain the intended sensor calibration and connector fitment for compatible Himalayan 450 applications.\u003c\/p\u003e\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e1 x Royal Enfield Engine Coolant Temperature Sensor – RLV00009\/C\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eO-ring, sealing washer, coolant, thermostat, radiator fan, wiring connector, harness, thermostat housing and other cooling-system parts are included only if specifically supplied or shown separately.\u003c\/p\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInstall only when the engine is cool and the cooling system is safe to open.\u003c\/li\u003e\n\u003cli\u003eCheck coolant level and coolant condition during replacement.\u003c\/li\u003e\n\u003cli\u003eInspect the sensor connector, wiring lock, terminals and harness for corrosion or damage.\u003c\/li\u003e\n\u003cli\u003eUse the correct sealing method as specified for the assembly.\u003c\/li\u003e\n\u003cli\u003eDo not overtighten the sensor or damage the threads.\u003c\/li\u003e\n\u003cli\u003eAfter installation, refill\/bleed coolant as required and check for leakage.\u003c\/li\u003e\n\u003cli\u003eClear ECU fault codes if required and verify temperature reading\/fan operation after installation.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended because this part is part of the engine cooling and ECU feedback system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eReturn-Prevention Note\u003c\/h2\u003e\n\u003cp\u003eOrder only if your motorcycle requires \u003cstrong\u003eRLV00009\/C Engine Coolant Temperature Sensor\u003c\/strong\u003e. Do not confuse this with older Royal Enfield oil temperature sensors or generic brass temperature sensors. For the safest purchase, confirm by part number, VIN\/EPC, existing sensor label, or mechanic diagnosis before ordering.\u003c\/p\u003e\n\u003ch2\u003eFAQs\u003c\/h2\u003e\n\u003ch3\u003eWhat is RLV00009\/C?\u003c\/h3\u003e\n\u003cp\u003eRLV00009\/C is a genuine Royal Enfield engine coolant temperature sensor used where this part number is specified in compatible liquid-cooled 450 engine applications.\u003c\/p\u003e\n\u003ch3\u003eDoes this fit Royal Enfield Himalayan 450?\u003c\/h3\u003e\n\u003cp\u003eYes, it is suitable for Himalayan 450 applications where \u003cstrong\u003eRLV00009\/C\u003c\/strong\u003e or \u003cstrong\u003eRLV00009\u003c\/strong\u003e engine coolant temperature sensor is specified.\u003c\/p\u003e\n\u003ch3\u003eDoes this fit Guerrilla 450?\u003c\/h3\u003e\n\u003cp\u003eUse it on Guerrilla 450 only after confirming the exact part number through the official parts catalogue, VIN\/EPC, product package or existing sensor. Do not assume fitment only because it shares the Sherpa 450 engine family.\u003c\/p\u003e\n\u003ch3\u003eIs this an engine oil temperature sensor?\u003c\/h3\u003e\n\u003cp\u003eNo. This listing is for an \u003cstrong\u003eengine coolant temperature sensor\u003c\/strong\u003e. Oil temperature sensors used on other Royal Enfield platforms are different parts.\u003c\/p\u003e\n\u003ch3\u003eIs this the radiator fan switch?\u003c\/h3\u003e\n\u003cp\u003eIt is a coolant-temperature sensor used by the engine management system. It should not be treated as a universal fan switch unless the parts catalogue confirms this exact sensor for the application.\u003c\/p\u003e\n\u003ch3\u003eWhat symptoms can a faulty coolant temperature sensor cause?\u003c\/h3\u003e\n\u003cp\u003ePossible symptoms include incorrect temperature reading, warning-light concerns, fan-operation issues, rough cold start, overheating diagnosis confusion, ECU fault codes or poor running behaviour. Always diagnose before replacing.\u003c\/p\u003e\n\u003ch3\u003eDoes it include an O-ring or sealing washer?\u003c\/h3\u003e\n\u003cp\u003eOnly the sensor is included unless the package or product photo clearly shows additional sealing parts. Replace related seals separately if required by the service procedure.\u003c\/p\u003e\n\u003ch3\u003eCan I use a universal coolant temperature sensor?\u003c\/h3\u003e\n\u003cp\u003eUniversal sensors may not match the correct connector, resistance curve, thread or ECU calibration. Use the genuine Royal Enfield part where RLV00009\/C is specified.\u003c\/p\u003e\n\u003ch3\u003eIs this a genuine Royal Enfield part?\u003c\/h3\u003e\n\u003cp\u003eYes. This listing is for genuine Royal Enfield part number \u003cstrong\u003eRLV00009\/C\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Royal Enfield","offers":[{"title":"Default Title","offer_id":51400889827623,"sku":"RLV00009\/C","price":539.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/7447\/0183\/files\/Royal_Enfield_Engine_Coolant_Temperature_Sensor_RLV00009_C_for_Himalayan_450.jpg?v=1779123045","url":"https:\/\/underthehood.co.in\/products\/royal-enfield-himalayan-450-engine-coolant-temperature-sensor-rlv00009-c","provider":"UNDER THE HOOD","version":"1.0","type":"link"}