Bulb Holder Complete with Wires (Tail Lamp Socket) for Bullet 500 UCE / Classic 500 (Round Tail Lamp) – 591215/A

The 591215/A Bulb Holder Cum Wires is the genuine tail lamp bulb holder/socket used inside the round-type rear tail lamp assembly on select Royal Enfield models. It’s the piece that holds the 21/5W tail/brake bulb and connects it to the bike’s wiring—critical for stable tail light + brake light operation. In real workshop cases, this is replaced when the rear light becomes intermittent, the bulb seat gets loose/burnt, wiring gets brittle, or the bulb holder contacts corrode and cause flicker/no brake light.

OEM matters here because the holder’s fit, contact pressure, and wire routing must match the factory tail lamp body—cheap substitutes often cause poor contact and repeat failures.

Also searched as: tail light bulb holder, tail lamp socket, rear light bulb base, bulb holder with pigtail wires, round tail lamp holder.

Before you buy: confirm your tail lamp is the round-type assembly and match the old holder shape/connector before ordering.

Key Features 

• Genuine OEM bulb holder + wires for round tail lamp assemblies

• Restores stable tail/brake light connection (reduces flicker & cut-outs)

• Correct bulb seating and contact tension vs generic holders

• Direct replacement inside the tail lamp unit (holder is listed as “bulb holder complete”)

• Best for repairs where socket is heat-damaged, loose, or corroded

• Helps solve “tail light works sometimes / brake light not working” symptoms

• Designed to integrate with factory wiring routing (no splicing when matched correctly)

• Part number reference: 591215/A (often searched as 591215)

Compatibility Table 

Variants
No variants.

FAQs 

Q1 (Fitment): How do I confirm this 591215/A is correct for my bike?
Open the tail lamp, remove the existing holder, and match (1) holder shape, (2) wire count/colors, and (3) connector type to your old part. If you’re unsure, share a clear photo of your old holder + connector and the tail lamp back side.

Q2 (Fitment): Is this for round tail lamp only or any tail lamp?
Confirmed for round-type tail lamp assemblies shown in the Bullet 500 Euro 3 / Classic 500 Euro 3 diagrams. If your bike has a different tail lamp style (especially newer BS6/J-Series), do not assume compatibility.

Q3 (Comparison): OEM vs aftermarket bulb holder—why choose genuine?
OEM holders maintain correct contact pressure and alignment inside the tail lamp body. Aftermarket sockets often fit loosely, overheat, or create intermittent brake light due to poor terminals—leading to repeat failures.

Q4 (Installation): Any precautions while installing?
Disconnect the battery negative, avoid bending terminals, and ensure the bulb sits fully. After install, test tail + brake + number plate light (if applicable) before closing the lens.

Q5 (Symptoms): What problems does this part solve?
Common fixes: tail lamp flickering, brake light not turning on, bulb getting loose, burnt socket smell/blackening, or wiring near the holder cracking.

Q6 (Return-prevention): What photo should I share to avoid a wrong order?
Send (1) your old holder front/back, (2) the connector close-up, and (3) a photo of the tail lamp assembly from the rear. This lets us confirm type before shipping.