UNDER THE HOOD
Royal Enfield Headlamp Holder Bracket LH – 1120090/B | OEM for Thunderbird X 350/500 (BS4, 2018–2020)
Royal Enfield Headlamp Holder Bracket LH – 1120090/B | OEM for Thunderbird X 350/500 (BS4, 2018–2020)
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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
Restore factory headlamp alignment on your Thunderbird X with the genuine Royal Enfield LH Headlamp Holder Bracket (Part No. 1120090/B). This is the left-side OE bracket used on the Thunderbird X 350/500 (BS4, 2018–2020) and is designed to mount the 7-inch headlamp securely to the fork/yoke, keeping the beam focused and rattle-free. Catalog-grade construction and geometry deliver the exact fit and finish of the original part—no shimming or hacks.
Unlike generic clamps, 1120090/B matches the OE mounting points and fork spacing of the TB-X platform, ensuring quick, bolt-on installation with stock hardware. Ideal after a fall, repaint, or when converting back from aftermarket brackets. Every unit from UnderTheHood is authentic OEM, QC-checked, GST-invoiced, and ships fast. For the right-hand bracket, order 1120091/B.
Fitment verified: Royal Enfield catalog identification for 1120090/B, plus multiple TB-X-specific listings (ABS/DISC variants).
Key Features
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OEM LH headlamp holder – Part 1120090/B (Thunderbird X)
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Exact bolt-pattern & fork spacing for TB-X 350/500 (BS4)
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Keeps headlamp aligned; reduces vibration & glare
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Direct plug-fit with stock fasteners; no mods required
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Durable OE finish; built for daily use and touring
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QC-checked, GST invoice, easy returns/exchange
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Matching RH bracket 1120091/B sold separately.
Compatibility
| Model | Engine/Spec | Years | Side | Part No. | Status |
|---|---|---|---|---|---|
| Thunderbird X 350 | UCE, BS4 | 2018–2020 | LH | 1120090/B | ✅ Confirmed. |
| Thunderbird X 500 | UCE, BS4 | 2018–2020 | LH | 1120090/B | ✅ Confirmed. |
Not compatible: Interceptor/GT 650, Classic/J-Series, Meteor, Hunter.
Variants / Related
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LH bracket: 1120090/B (this listing)
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RH bracket: 1120091/B (pair with LH for full replacement)
❓ FAQs
Q1. What is Part No. 1120090/B?
It’s the OEM Left-Hand Headlamp Holder Bracket for Thunderbird X 350/500 BS4.
Q2. Which bikes does it fit?
Specifically designed for Thunderbird X 350 & 500 (2018–2020 BS4 models, ABS/DISC variants).
Q3. Will it fit Thunderbird Classic or J-Series models?
No — it is only for Thunderbird X (BS4).
Q4. Do I need both sides?
If the left side is damaged, the right side often is too. Recommended: buy with 1120091/B (RH bracket).
Q5. Is it genuine OEM?
Yes — officially listed in RE’s spare parts catalog for Thunderbird X.
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Verify Fitment on Official Brand Portals
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
