Product Description
The Genuine Royal Enfield TCI Unit (589428/B) is the primary electronic controller responsible for managing the ignition spark in Unit Construction Engines (UCE). It processes signals from the crankshaft position sensor to trigger the ignition coil at the exact millisecond required for optimal combustion. Replacing a malfunctioning ignition module with this original OEM part resolves common electrical issues such as starting trouble, engine misfiring at high RPMs, and sudden engine cut-offs.
Key Features:
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Precision Ignition Mapping: Programmed with factory-spec timing curves to provide a smooth power delivery across the entire rev range.
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Enhanced Cold Start Performance: Delivers a stable and strong voltage output to ensure reliable starting even in cold weather conditions.
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Robust Heat-Resistant Casing: Enclosed in a high-grade polymer housing that protects the internal circuitry from engine heat and road vibrations.
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Plug-and-Play Fitment: Features an OEM-standard multi-pin coupler that connects directly to the factory wiring harness without any modifications.
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100% Original Spare: A genuine Royal Enfield part that meets the exact technical requirements of your motorcycle’s electrical system.
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Verifiable Authenticity: Supplied in official Royal Enfield packaging with a unique QR code for guaranteed part legitimacy.
Product Specifications:
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Brand: Royal Enfield
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Part Number: 589428/B
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System Type: TCI (Transistorized Coil Ignition)
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Compatibility: 350cc & 500cc UCE Engines
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Country of Origin: India
Vehicle Compatibility:
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Royal Enfield Classic 350 / 500 (UCE Carbureted & early FI Models)
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Royal Enfield Bullet 350 / 500 (UCE Models)
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Royal Enfield Bullet Electra 350 (UCE Models)










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