Product Overview
The 888300 Valve Kit is an authentic OEM (Original Equipment Manufacturer) replacement set designed for the Royal Enfield 500cc UCE platform. This kit includes both the Inlet and Exhaust valves, which are critical for maintaining the combustion chamber’s integrity. Manufactured from premium heat-resistant steel, these valves are built to withstand the extreme temperatures and mechanical stresses of a large-displacement air-cooled engine, preventing common issues like “valve burning,” power loss, and hard starting.
Key Features:
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Genuine OEM Part: 100% original Royal Enfield spare, ensuring the exact metallurgy and dimensions required for your 500cc engine.
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High-Alloy Steel Construction: Forged from specialized heat-resistant alloys to prevent valve mushrooming and ensure long-term durability under heavy loads.
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Precision-Ground Faces: Engineered for a perfect airtight seal with the valve seats, restoring factory-level compression and fuel efficiency.
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Optimized for EFI Systems: Specifically balanced for the Electronic Fuel Injection (EFI) cycles of the 500cc UCE, facilitating smooth airflow and exhaust expulsion.
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Durable Performance: Designed to resist carbon buildup and thermal fatigue, extending the intervals between top-end overhauls.
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Direct Replacement: The standard kit for engine rebuilds and cylinder head servicing across the 500cc UCE range.
Product Specifications:
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Part Number: 888300
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Material: Heat-Resistant High-Alloy Steel
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Component: Engine Valve Set (Inlet & Exhaust)
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Dimensions: Standard OEM 500cc Specifications
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Quantity: 1 Set (2 Valves)
Vehicle Compatibility:
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Royal Enfield Classic 500 (All UCE/EFI Variants)
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Royal Enfield Bullet 500 (UCE Models)
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Royal Enfield Thunderbird 500 / 500X
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Note: Specifically for 500cc UCE engines. Not compatible with the 350cc UCE (uses 888293) or the older Cast Iron 500cc models.












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