Royal Enfield 801536 – Side Decor LH EFI Black for Thunderbird X 350 & Thunderbird X 500 (BS4) – Genuine OEM Side Panel

Royal Enfield 801536 – SIDE DECOR LH EFI BLACK is the genuine left-hand side decor / side panel used on the Thunderbird X series (TB X 350 & TB X 500, BS4). This panel sits on the left side of the bike, covering and protecting EFI components and wiring while giving the Thunderbirds their distinctive, blacked-out side profile.

The official Thunderbird X 350 BS4 add-on parts catalogue lists 801536 – SIDE DECOR LH EFI BLACK as an exclusive part for TB X 350 (QTY 2). The Thunderbird X 500 BS4 add-on catalogue also confirms 801536 as “SIDE DECOR LH EFI BLACK” for TB X 500 (QTY 1). Royal Enfield price lists further describe 801536 as Side Decor LH EFI Black with HSN 87141090, confirming it as a finished painted body panel, not a raw shell.

Trusted dealers such as PartOnWheels and Spareshunt sell this part as “Side Decor Left Hand Black” for Thunderbird X 350 / X 500 (BS4) under OEM Royal Enfield branding.

If your stock side decor panel is cracked, scratched, or missing, 801536 is the exact factory replacement. It matches the original black finish, curvature, and mounting points, ensuring correct alignment with the seat, frame and RH side decor (801537) and restoring that sharp TB X look without any jugaad fitting.

Key Features

• Genuine Royal Enfield OEM part – part number 801536, described in official price lists as “SIDE DECOR LH EFI BLACK”.

• Official fitment for Thunderbird X series – TB X 350 (BS4) and TB X 500 (BS4) confirmed in dedicated add-on spare parts catalogues.

• Left-hand side decor/side panel – covers EFI and electrical components while completing the blacked-out TB X styling.

• Factory black finish to match Thunderbird X 350/500 Black theme; no painting required when replacing a damaged panel.

• Precision OE mounting holes and tabs for direct bolt-on fitment with stock hardware; no modification or drilling needed.

• Helps protect engine area, wiring and EFI components from debris and spray while reducing visible clutter.

• Perfect for accident repair, restoration or de-modding bikes that had aftermarket/custom side panels.

• Backed by Royal Enfield quality control and correct HSN for trouble-free billing and export.

Compatibility Table

PLEASE CHECK PART NUMBER BEFORE PURCHASE 

Variants / Related Parts

This product listing covers:

• Part Number: 801536

• Description: Side Decor LH EFI Black

• Position: Left-hand side decor / side panel

• Colour/Finish: Black (EFI)

• Quantity: 1 piece (LH only)

Related OEM parts (separate listings, good cross-sell):

• 801537 – Side Decor RH EFI Black – matching right-hand side decor for the same bikes.

• 801498 / 801499 – Side Decor LH/RH Black – BX type side panels for other Thunderbird variants (different shape/fit; not interchangeable).

FAQs

Q1. What is Royal Enfield part 801536 used for?
It is the left-hand side decor / side panel in black used on Thunderbird X 350 and Thunderbird X 500 BS4. It covers the EFI area and forms part of the TB X side bodywork. Official RE price lists call it “SIDE DECOR LH EFI BLACK”, and TB X microfiche lists it under exclusive TB X parts.

Q2. Which motorcycles does 801536 definitely fit?
Confirmed via Royal Enfield Thunderbird X 350 and Thunderbird X 500 add-on catalogues (BS4) – both list 801536 as SIDE DECOR LH EFI BLACK. 

Q3. Will this fit a standard Thunderbird 350 or Thunderbird 500 (non-X)?
Fitment on non-X Thunderbirds is not microfiche-confirmed. Some sellers list base model “Thunderbird 350/500 BS4” in the applicability line, but Royal Enfield’s dedicated TB X catalogue clearly tags 801536 as an X-exclusive EFI side decor.
To avoid returns, we only guarantee it for Thunderbird X 350/500 BS4. For other Thunderbird variants, match the part number on your old panel before ordering.

Q4. Is this part painted from the factory or raw plastic?
It is a finished, black side decor panel. RE price lists categorize it under painted body components with HSN 87141090, and all dealers sell it as Side Decor LH EFI Black (not raw).

Q5. Do I need any extra brackets or hardware to fit it?
No special brackets are required. 801536 reuses the stock mounting hardware and points on TB X 350/500. If your old fasteners are rusted or missing, you may want to order replacement screws/washers separately, but the panel itself is a direct bolt-on.