Royal Enfield Add On Lead – Fuse Box Wiring for Classic 500 (UCE) | 1040622/B | Genuine OEM

If your Royal Enfield’s electricals are acting up (intermittent power, fuse issues, add-on wiring problems), the Add On Lead – Fuse Box (1040622/B) is the correct OEM harness lead designed to connect/extend the fuse-box side wiring without unsafe cutting, splicing, or local-jugaad joints. This is especially useful during fuse-box replacement, harness repair, or when restoring a Classic 500 where previous owners have tampered with wiring.

Unlike generic wires that can loosen, heat up, or corrode at joints, this Genuine Royal Enfield lead uses the factory connector type and correct wire spec, helping maintain safe current flow and reducing the risk of shorts. It is the cleaner, more reliable approach for riders who want OEM-grade electrical reliability—particularly important for long rides, night riding, and preventing sudden electrical failures.

Note: This part number is listed by Royal Enfield as “ADD ON LEAD - FUSE BOX” (1040622/B) in official pricing documentation.

Key Features 

• Genuine Royal Enfield Add On Lead – Fuse Box (OEM spec) 

• Part Number: 1040622/B (direct identification for correct ordering)

• Helps avoid wire cutting/splicing, reducing electrical failure risk

• Intended for fuse-box side harness/lead integration (clean plug-type fitment)

• Ideal for restoration + electrical troubleshooting jobs

• Improves reliability vs aftermarket “universal” wiring leads

• Recommended when replacing fuse box / correcting previous wiring modifications

• High-value small part that can prevent repeat electrical issues

Compatibility Table 

Fitment evidence found online: listings frequently specify Classic 500 and/or Bullet 500/Classic 350, but model coverage is not consistent across sellers—so only Classic 500 (UCE) is published as “confirmed” here. 

Variants

• No variants (single piece) — Add On Lead – Fuse Box (1040622/B)

FAQs 

1) What does “Add On Lead – Fuse Box” do?
It’s an OEM wiring lead used on the fuse-box side to connect/extend the electrical loom cleanly using factory-style connectors (no cutting/joints).

2) Can I use a local wire instead?
You can, but it increases risk of loose connections, overheating, corrosion, and repeat fuse failures. OEM lead is the safer long-term fix.

3) Is this for Classic 350 Reborn / Bullet 350 J-Series?
Not confirmed. This listing is for Classic 500 UCE fitment only. If you share your bike model + year + a photo of your fuse-box connector, we can cross-check before dispatch.

4) My mechanic says it fits Bullet 500 too—does it?
Some sellers claim that, but it is not confirmed with reliable cross-source evidence in this research pass, so it is not included as guaranteed fitment.