Ring Fuel Cap (Fuel Tank Cap Ring, Metallic Silver) for Thunderbird 350 / Thunderbird 500 – 594513/A

Royal Enfield 594513/A is the Ring – Fuel Cap (often searched as fuel cap ring, tank cap ring, petrol cap ring, or fuel cap trim) used on specific Thunderbird 350 / Thunderbird 500 applications. In the Thunderbird parts catalogue, it is listed as Ring Fuel Cap – Metallic Silver with an alternate number 859048.

This part is relevant when the fuel cap area is not sitting tight, the ring is cracked/warped after a fall, the finish has become dull/peeled, or the cap assembly feels unstable due to ring wear or damage. Using a genuine ring helps maintain correct fit and finish and reduces the chances of mismatched cap seating that can cause splash or fumes under vibration.

Also searched as: ring fuel cap, fuel tank cap ring, petrol cap ring, cap trim ring, tank cap ring (Thunderbird).

Before you buy: Many customers confuse this with a complete fuel cap assembly. Please confirm you need the ring component (metallic silver) by sharing a clear photo of your tank cap area / current ring before dispatch.

Key Features

• Genuine Royal Enfield part number 594513/A (Ring – Fuel Cap).
• Listed in catalogue as Ring Fuel Cap – Metallic Silver (Alt. No. 859048).
• Restores OEM fit and finish around the fuel cap area.
• Correct replacement for cracked, warped, corroded, or cosmetically damaged ring.
• Reduces incorrect cap seating caused by damaged ring surfaces.
• Best installed during tank/cap refurbishment or accident repair.
• Photo verification supported to avoid ordering the wrong “cap vs ring” part.

Compatibility Table

Variants

THUNDERBIRD 350X FUEL RING CAP 

FAQs

Q1 (Fitment): How do I confirm 594513/A fits my Thunderbird?

Match (1) model: Thunderbird 350 or Thunderbird 500, (2) your cap area uses a separate ring component, and (3) the finish you want is metallic silver. For zero-wrong-order dispatch, send a clear photo of your tank cap area / current ring.

Q2 (Fitment): Will this ring fit Thunderbird 350X / 500X?

NO CLICK HERE FOR Thunderbird 350X  

Q3 (Comparison): Is this a complete fuel cap or only the ring?

This is the ring-fuel cap component (ring/trim) listed as 594513/A. A complete cap/lock assembly is different. If your issue is lock mechanism failure, confirm whether you need the full cap or just the ring before ordering.

Q4 (Installation): Any precautions while installing?

Work on a clean tank surface to avoid scratches, align the ring correctly, and tighten evenly (do not over-torque small screws). After installation, test cap seating and check for splash/fumes during a short ride.

Q5 (Symptoms): What problems does this ring solve?

Cracked/warped ring after a fall, rough/peeled finish around the fuel cap area, cap seating instability due to ring damage, and cosmetic deterioration in the cap surround.

Q6 (Returns-prevention): What should I send you before shipping to avoid wrong orders?

Send (1) a clear photo of your tank cap area, (2) close-up of the existing ring, and (3) your bike model + year/variant (Thunderbird 350/500). This prevents the most common mistake: ordering a ring when you actually need a complete fuel cap assembly.