Add On Lead – Fuse Box for Royal Enfield Bullet 350 / Classic 350 (BS3/BS4) | 1040444/B | Genuine OEM

Running extra electrical accessories on your Bullet/Classic (parking lights, USB charger, auxiliary lamps, etc.) often fails because owners tap power directly from random wires—leading to loose joints, blown fuses, voltage drop, and messy wiring. Royal Enfield 1040444/B is the OEM “ADD ON LEAD – FUSE BOX” designed to integrate cleanly with the motorcycle’s electrical system and provide protected, fuse-based power distribution. 

This part is ideal when your fuse-box add-on lead is damaged, overheated, cut during previous repairs, or when you want a factory-style solution instead of aftermarket splice jobs. A properly fused circuit reduces the risk of short-circuits and helps protect critical components—exactly why this part exists in the OEM catalogue. 

Because Royal Enfield has multiple wiring/fuse-lead variants across generations, this listing is kept strictly to confirmed applications only (see compatibility table). If your bike is outside the confirmed models, treat it as ❓ Verify by part number + harness connector match before ordering.

Key Features 

• Genuine Royal Enfield part number 1040444/B 

• OEM part description: “ADD ON LEAD – FUSE BOX”

• Enables safer, organized power distribution via fuse-protected circuits 

• Helps avoid “cut-wire / taping” accessory wiring that causes failures

• Reduces chances of short-circuit damage and repeat fuse blowing 

• Correct connector fit and routing (OEM-style harness integration)

• Best choice for restoration/rewiring jobs on older UCE-era bikes
  

Compatibility Table

PLEASE CHECK PART NUMBER BEFORE PURCHASE 

Explicit exclusions (not confirmed): Classic 350 Reborn (J-Series), Bullet 350 J-Series, Meteor/Hunter, Himalayan/Scram, 650 Twins.

Variants

• No variants (single part: 1040444/B)

FAQs

Q1) What is “Add On Lead – Fuse Box”?
It’s an OEM add-on wiring lead meant to work with the fuse box so accessory/aux circuits can be powered in a safer, fuse-protected way. 

Q2) Will this fix random fuse blowing / accessory cut-outs?
If the root cause is a damaged/loose add-on lead, yes. If a wrong accessory load or short circuit exists, you must fix that first. 

Q3) Is it compatible with Classic 350 Reborn / new Bullet 350 (J-Series)?
Not confirmed—do not order for J-Series unless you verify by part number and connector match.

Q4) Do I need a mechanic?
Recommended, especially if you’re correcting earlier wiring taps. Proper routing and fuse rating selection matters. 

Q5) Is this genuine?
1040444/B is listed in an OEM Royal Enfield parts price list with the same description.