Product Description
The STMR-ENFD-5766A is an OE-grade (Original Equipment) starter motor manufactured by Varroc Engineering, a primary electrical partner for Royal Enfield. It is specifically engineered to provide the high cranking torque (0.7KW) required to turn over the heavy 346cc single-cylinder UCE engine, ensuring reliable starts even under heavy load or cold weather.
Unlike the silver/grey variants, this unit features a Corrosion-Resistant Matte Black Coating. This finish is not just for aesthetics; it provides an extra layer of protection against road salt, moisture, and oxidation, which is common in areas with high humidity. It uses an optimized internal gear ratio and heavy-duty armature to deliver consistent power without excessive battery drain. The unit comes with a pre-installed 2-bolt mounting bracket and the standard copper terminal for the starter cable.
Key Features:
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High Cranking Power: 0.7KW output specifically tuned for the high-compression cycles of the Royal Enfield 350cc engine.
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Corrosion-Resistant Black Finish: Durable matte black coating that matches the “Dark Edition” styling of modern Royal Enfields.
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OE Vendor Reliability: Manufactured by Varroc to the exact factory specifications used by Royal Enfield.
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Plug-and-Play Fitment: Direct replacement for RE Part No. 570766/F, fitting perfectly into the factory mounting points without modification.
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Precision Built: Features high-grade carbon brushes and a balanced commutator for a longer service life and quieter operation.
Technical Specifications:
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Part Number: STMR-ENFD-5766A
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Brand: Varroc Engineering Limited
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Output: 0.7 KW / 12V DC
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Mounting: 2-Bolt Hole Pattern
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Finish: Matte Black
Vehicle Compatibility:
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Royal Enfield Classic 350 (UCE Models: BS3, BS4, BS6)
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Royal Enfield Bullet 350 ES (Electric Start UCE Models)
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Royal Enfield Electra 350 (UCE Models)
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Note: Specifically for the UCE platform (2010–2021). Not compatible with the newer J-Series (Reborn/Meteor/Hunter) or the older Cast Iron engines.












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