The Morimoto LF503.2-ASM Gen II headlight pair is listed for 2017–2019 Ford Super Duty with OEM halogen or OEM LED headlights. It uses white DRLs, selectable turn-signal modes and a quad-projector low-beam layout.
Fitment and original equipment
- Ford F-250, F-350 and F-450 Super Duty: 2017–2019, matching the original halogen or LED headlight equipment.
- Left-hand-drive beam pattern. Morimoto designed and tested these housings on US-spec vehicles. Confirm the actual lighting, connectors and DRL equipment on Canadian or other-market vehicles.
Specifications and contents
| Part number | LF503.2-ASM |
|---|---|
| Quantity | Two Gen II headlights, left/right pair |
| Optics | Four low-beam projectors per housing; two also provide high beam |
| DRL / turn signal | White DRL with sequential or conventional on/off turn signal |
| Start-up | Two-stage projector sequence when DRL activates |
| Connections | Ford multi-pin OEM connections; included fuse-tap/DRL harness used for OEM halogen trucks only |
| Lens | UV-resistant polycarbonate |
Before installation
Identify the original headlight type and use the corresponding harness procedure. Test all functions before reassembly, then adjust the installed low/high-beam aim. Check the vehicle’s DRL control and any other aftermarket signal lighting.
Warranty
5-Year Manufacturer Warranty
Can LF503.2-ASM replace factory LED headlights?
The exact application includes both OEM halogen and OEM LED configurations for 2017–2019 Super Duty. Identify the original lamp and use the corresponding connection procedure.
How many projectors operate on low beam?
Four projectors in each housing operate on low beam. Two per housing also provide high beam, giving eight low-beam optics and four high-beam optics across the pair.
Is this the white-DRL or amber-DRL version?
LF503.2-ASM is the white-DRL version. The amber-DRL variant has a different part-number suffix; check the exact SKU when ordering.
Can the signal blink without a sequential sweep?
Yes. Morimoto lists sequential and conventional on/off turn-signal modes. Configure and test the same selected mode on both assemblies.
Does the separate DRL fuse-tap harness apply to OEM LED trucks?
The installation guide labels that supplied fuse-tap/DRL harness for OEM halogen trucks only. Follow the separate OEM LED connection procedure for a factory-LED-equipped truck.
Does the application include a 2020 Super Duty?
This exact Gen II part is listed for 2017–2019. Use a part specifically matched to a 2020 truck’s headlight shape, wiring and equipment rather than extending the earlier range.
What should Canadian Super Duty owners confirm?
Check original headlight type, connectors and DRL operation. Morimoto identifies US-spec testing, so confirm the actual market equipment and adjust aim after installation.
