4121910LE010 Headlamp Assembly is an integrated front headlight for JAC HFCN721 light truck lighting system. It integrates low beam, high beam, turn signal and position lamp, provides stable illumination for night driving, foggy and low visibility road conditions. This aftermarket replacement headlamp solves dim light output, flickering light and lens cracking faults caused by internal LED chip aging, sealing failure and water mist accumulation inside lamp housing. Reliable lighting performance improves driving safety for JAC light trucks used for township delivery and short-haul logistics transport.
Product Advantages Adopts high-brightness LED light source with long service life and low power consumption. High-transmittance PC lens with UV resistance prevents yellowing. Fully sealed housing with waterproof rubber gasket avoids water ingress and fogging. Each headlamp undergoes lighting test and sealing inspection before shipment, OEM mounting hole layout supports direct installation.
| Item | Parameter |
|---|---|
| Part Number | 4121910LE010 |
| Product Name | Headlamp Assembly |
| Matching Engine | HFCN721 |
| Material | PC Lens, ABS Housing, LED Light Chip, Waterproof Gasket |
| Feature | Front Lighting, Waterproof, Anti-Fog, High Brightness |
| MOQ | Negotiable |
| Application | Vehicle Front Head Light System |
Applicable Models Fit for JAC light commercial vehicles equipped with HFCN721, widely used for local cargo delivery and regional short-haul transportation fleets.





FAQ
Q1: What causes fogging inside the headlamp assembly?
A1: Damaged sealing gasket allows humid air to enter, forming condensation inside the lamp shell.
Q2: Why should we check wiring harness after installing this headlamp?
A2: Loose terminals lead to unstable power supply, flickering lights and burnout of LED chips.
Q3: Can we repair a cracked lamp lens instead of replacing the whole headlamp?
A3: Not recommended; cracks break waterproof performance, moisture will repeatedly damage internal components.