808037 - FRONT MUDGUARD ASSY. - COGNAC / SLATE

Restore the original factory look of your Royal Enfield Thunderbird with the Genuine OEM Front Mudguard Assembly – Part No. 808037. This is the official Royal Enfield-listed front mudguard assembly, supplied under the same part number used in the parts ecosystem and dealer catalogs. 

The 808037 mudguard is listed in dealer price data as “MUDGUARD-FRONT – ASPHALT (NT51/VT31)”, making it the correct choice when you want an OEM finish match for the Asphalt color theme used on Thunderbird NT51/VT31 range.

Ideal for replacements after dents, cracks, corrosion, repaint mismatch, or accident damage—this part helps reduce vibration/rattle that often happens with repaired or poorly fitted aftermarket fenders. If you want a clean, stock-style build (not a universal/modified fit), OEM is the safest route: correct curvature, mounting points, and factory finish mapping are what prevent rubbing on tyres and misalignment with fork stays.

Key Features 

• Genuine Royal Enfield spare part: 808037 

• Dealer-listed description: Front Mudguard – Asphalt (NT51/VT31) 

• Designed for Thunderbird NT51/VT31 platform identification 

• Best for OEM restoration (factory look + correct mounting geometry)

• Helps avoid common issues seen with universal fenders: misalignment, rubbing, poor paint match

• Recommended when upgrading from a repainted/damaged mudguard to factory-matched replacement

• Part-number based purchase reduces wrong-fit orders (verify your current part/variant before buying)

Compatibility Table

Not listed as compatible (no confirmation found): Thunderbird 500 / Thunderbird X / other UCE & J-Series models.

Variants

• No variants confirmed for this part number.

• Note: Mudguards are often color/finish-specific by part number (e.g., “Asphalt / NT51/VT31” mapping appears in dealer price data). 

FAQs 

Q1. Is 808037 a Genuine Royal Enfield front mudguard?
Yes—808037 is shown as a Certified Royal Enfield genuine spare part and described as Front Mudguard Assy. on official dealer microfiche networks. 

Q2. Which bike does 808037 fit?
Confirmed mapping ties NT51/VT31 to Thunderbird 350 (BSIV) in dealer listings. 

Q3. Will this fit Thunderbird 500 or Thunderbird X?
No confirmed evidence was found for those models under 808037, so it is not recommended unless you match your existing mudguard’s part number or confirm from your bike’s parts catalog.

Q4. What does “Asphalt / NT51/VT31” mean?
“Asphalt” is the finish name shown in dealer price data for this mudguard, and NT51/VT31 are platform identifiers used in Thunderbird parts mapping. 

Q5. What should I verify before ordering to reduce return risk?
Match (1) your current part number, or (2) bike variant/platform (NT51/VT31), and (3) color/finish name (Asphalt).