Product Description
Optimize your engine’s fuel efficiency and thermal management with the Genuine Royal Enfield Engine Oil Temperature Sensor. This authentic OEM component (Part No: RLH00018/E) is specifically engineered for the modern J-Series 350cc engine platform, ensuring high-precision data transmission to the Electronic Control Unit (ECU).
As an NTC (Negative Temperature Coefficient) thermistor, the RLH00018/E monitors the internal heat of the engine oil in real-time. This data allows the ECU to dynamically adjust fuel injection mapping and ignition timing to match the engine’s current thermal state—preventing overheating during heavy traffic and ensuring smooth performance during cold starts. The “E” revision features an upgraded weather-sealed connector to resist moisture and high-frequency engine vibrations. Unlike the older 576067/C used in 650cc and UCE models, this sensor is tailor-made for the specific resistance curves of the J-Series 350cc lineup.
Key Features:
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J-Series Specialized: 100% original Royal Enfield part designed exclusively for the Meteor, Hunter, and Reborn Classic series.
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High-Precision Monitoring: Operating range from $-55$°C to $+250$°C with a resistance value of 10 to 12 K-OHM at 25°C.
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ECU Optimization: Provides the critical feedback needed for the ECU to maintain peak fuel economy and emissions standards.
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Durable Construction: Built with high-grade ABS and aluminum to withstand the corrosive environment of a high-performance crankcase.
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Plug-and-Play Installation: Features a standard 2-pin electrical connection with an $M12 \times 1.25$ thread for a direct-fit replacement.
Product Specifications:
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Brand: Royal Enfield Genuine Parts
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Part Number: RLH00018/E (Supersedes RLH00018/D)
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Sensor Type: NTC Thermistor
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Thread Size: M12 x 1.25P
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Hex Size: 18mm
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Compatibility:
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✅ Royal Enfield Classic 350 Reborn (2021–Present)
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✅ Royal Enfield Meteor 350 (All Variants)
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✅ Royal Enfield Hunter 350
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✅ Royal Enfield New Bullet 350 (J-Series, 2023+)
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✅ Royal Enfield Goan Classic 350
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❌ Note: Not compatible with Interceptor 650, Continental GT 650, or older UCE models.
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