Product Description
The 1570177/C Valve Stem Seal Kit is a factory-original (OEM) component designed for the latest generation of Royal Enfield 350cc engines. These seals sit within the cylinder head, acting as a “wiper” on the intake and exhaust valve stems to prevent engine oil from leaking into the combustion chamber.
While small, these seals play a massive role in engine health. If you notice blue smoke from the exhaust during a cold start or excessive oil consumption, it usually indicates that the valve seals have hardened or worn out. Replacing them with this genuine kit—made from high-temperature resistant Viton—restores the factory seal, prevents carbon buildup on valves, and ensures your spark plugs don’t get fouled by oil.
Key Features:
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Genuine OEM Fit: 100% original Royal Enfield spare (PN: 1570177/C) for the exact stem diameter and pressure required for the J-Series engine.
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Viton Construction: Manufactured from premium, high-heat resistant elastomer that stays flexible even under the extreme thermal stress of a long-stroke engine.
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Controlled Lubrication: Engineered to allow a microscopic film of oil to lubricate the valve guide while blocking excess flow.
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Prevents Blue Smoke: Direct solution for oil-burning issues related to top-end leakage.
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Extended Engine Life: Reduces carbon deposits on valve seats, maintaining optimal compression and fuel efficiency.
Technical Specifications:
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Part Number: 1570177/C
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Component Type: Valve Stem Seal / Oil Guard
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Material: High-Grade Fluorinated Elastomer (Viton Type)
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Color: Typically Red/Brown (Factory Standard)
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Quantity: 1 Kit (Contains 2 Seals)
Vehicle Compatibility:
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Royal Enfield Classic 350 Reborn (J-Series, 2021–Present)
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Royal Enfield Meteor 350 (Fireball, Stellar, Supernova)
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Royal Enfield Hunter 350 (Retro & Metro)
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Royal Enfield New Bullet 350 (J-Series Platform)
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Royal Enfield Goan Classic 350
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Note: Specifically designed for the J-Series engine. For older UCE models, please use Part No. 500322/A.










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