Add On Lead Fuse Box Wire for Royal Enfield (Connector Lead) | 1040446/B | Genuine OEM

If your Royal Enfield is facing intermittent power, random fuse blowing, loose fuse-box connection, or “jugaad” wiring near the fuse area, the correct fix is often replacing the fuse box add-on lead instead of repeatedly taping joints. Royal Enfield 1040446/B is the Genuine OEM “ADD ON LEAD FUSE BOX”—a dedicated connector lead used between the main wiring harness and the fuse-box side of the electrical system, designed to maintain stable current flow and reliable circuit protection. 

This part is ideal for rebuilds/restorations and for bikes where the fuse lead has hardened insulation, corrosion at terminals, or damaged couplers due to heat and vibration. OEM-fit wiring reduces resistance, improves reliability, and helps prevent repeat electrical failures compared to spliced repairs.

Important fitment note: “Add-on leads” are variant-specific across Royal Enfield models/years and wiring configurations. This listing guarantees part-number accuracy (1040446/B) and OEM description; however, model fitment must be verified by matching your old part or confirming via VIN/microfiche before purchase to avoid returns. 

Key Features 

• Genuine Royal Enfield electrical spare: ADD ON LEAD FUSE BOX 

• OEM-style couplers/terminals for secure, low-resistance connection

• Helps resolve fuse-box area wiring faults caused by cuts/splices/loose terminals

• Supports safer current routing and consistent circuit protection (when correctly matched) 

• Durable insulation designed for heat/vibration environment near chassis/side panel Correct choice for restoration-grade rewiring (avoid “tape-joint” electrical work)

• HSN in RE customer price list line-item: 85443000 

Compatibility Table 

⚠️ Not model-confirmed from microfiche-accessible sources in this session.
Only the OEM identification is confirmed: 1040446/B = ADD ON LEAD FUSE BOX. 

CHECK PART NUMBER BEFORE PURCHASE 

How to verify before ordering (recommended):

1. Match 1040446/B on your old packaging/invoice, or 2) compare connector shape/lead length with your existing fuse-box lead, or 3) confirm through VIN-based microfiche at dealership.

Variants

• Single unit – Add On Lead Fuse Box (1040446/B)

FAQs 

Q1) What exactly is 1040446/B?
It’s listed as “ADD ON LEAD FUSE BOX” in Royal Enfield’s customer price list. 

Q2) What problems does this part fix?
Common use-case is repairing damaged/loose fuse-box connector lead wiring, which can cause intermittent electrical supply or repeated fuse issues (when the root cause is the lead/connection). 

Q3) Is this the full main wiring harness?
No—this is an add-on lead for the fuse-box connection area, not the complete main harness. 

Q4) Will it fit my Classic/Bullet/Electra?
Fitment depends on your exact wiring configuration. Please verify 1040446/B using VIN/microfiche or old-part match before ordering. 

Q5) Is there a similar part number I might confuse with this?
Yes—Royal Enfield lists multiple fuse-box related add-on leads (e.g., 1040444/B, 1040622/B) so matching the exact part number matters.