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Royal Enfield 144636/A – Copper Washer M5 | Genuine OE Gasket for Classic, Bullet, Thunderbird (UCE Engine)
Royal Enfield 144636/A – Copper Washer M5 | Genuine OE Gasket for Classic, Bullet, Thunderbird (UCE Engine)
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Please order only after confirming the part number, model, variant, year, side, connector type and compatibility. All orders are non-cancellable once placed. Correctly shipped spare parts are not eligible for return, exchange or refund due to wrong selection, wrong diagnosis, fitment mismatch, mechanic recommendation or change of mind. Electrical/electronic items are additionally non-returnable once opened, installed, plugged in, tested or used. Wrong item, damaged item or missing item claims require a complete unboxing video within 24 hours. Read full Return & Warranty Policy
NOW SOLD AS A SET OF 20 PCS FROM 14 JULY 2026
Upgrade your Royal Enfield’s reliability with the 144636/A Copper Washer M5 – a genuine OEM sealing washer used in various engine and brake assemblies. Made from high-quality copper, this washer ensures a tight, leak-proof seal in high-pressure connections like oil drain bolts, banjo fittings, and fuel lines.
Perfect for routine maintenance, especially during oil changes or part replacements where sealing integrity is critical. 100% original Royal Enfield spare part for UCE engine platforms.
✅ Key Features
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Genuine Royal Enfield OEM part – 144636/A
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High-quality annealed copper for superior sealing
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Ideal for oil drain bolts, fuel and brake line fittings
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Maintains pressure integrity and prevents leaks
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Compatible with several UCE engine models
🔍 Compatibility
Verified to fit the following Royal Enfield models (UCE engine variants only):
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Classic 350 / 500 UCE (BS3 & BS4)
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Bullet 350 / 500 UCE
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Thunderbird 350 / 500 UCE
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Electra 350 UCE
❌ Not compatible with J-Series (Classic Reborn, Meteor, Hunter) or 650 Twins
📦 Package Includes
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1 x Copper Washer M5 – Part No. 144636/A
❓ FAQ
Q1. What is this copper washer used for?
A: It is used for sealing engine or fluid line connections like drain bolts, banjo bolts, or fuel joints to prevent leaks.
Q2. Will this fit my Classic 350 Reborn or Meteor 350?
❌ No, this washer is specifically for UCE engine platforms, not the J-series.
Q3. Is this an original Royal Enfield spare?
✅ Yes, it's a 100% genuine RE OEM part with part number 144636/A.
Q4. Can this be reused?
A: Copper washers are typically single-use to ensure perfect sealing. Always replace during oil or fluid line service.
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Verify Fitment on Official Brand Portals
For selected genuine spare parts, you can cross-check the part number on the official brand portals before ordering.
Royal Enfield Official Spares Portal
Hero MotoCorp Official eCatalogue

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