1978-1979 Ford F-150 Rectangular H4 Sealed-Beam Conversion

This conversion is confirmed for 1978-1979 Ford F-150 trucks equipped with factory rectangular sealed-beam headlights. The housings accept replaceable H4 bulbs and are not listed for round-headlight trucks.

Exact Vehicle Fitment

• 1978-1979 Ford F-150
• Factory rectangular sealed-beam headlights only
• Excludes round sealed-beam headlights
• Not confirmed for 1980-1986 applications despite the legacy URL wording

Verify the model year, lamp dimensions and rectangular configuration before ordering.

Product Style and Components

• Rectangular sealed-beam conversion housings
• Replaceable H4 bulbs
• Metal housings with glass lenses
• 12-volt standard H4 connector

Included Components

• Headlight conversion housings for the confirmed application
• H4 light bulbs

Installation Notes

Installation generally involves removing the original rectangular sealed-beam units, connecting the H4 wiring and securing the conversion housings. The estimated time is 30-90 minutes. Compare all dimensions and mounting points before installation, and check headlight aim afterward.

Frequently Asked Questions

Does this fit a 1980-1986 F-150?
No confirmed fitment is documented for those years; the current fitment note supports 1978-1979 only.

Will it fit round headlights?
No. The confirmed application requires factory rectangular sealed-beam headlights.

Are H4 bulbs included?
Yes. The current product information lists H4 bulbs with the conversion housings.

What should I verify before ordering?
Confirm the model year, rectangular lamp dimensions, mounting layout and wiring connector.

Shop Related Ford Lighting

• Ford sealed-beam headlight conversions
• Ford F-150 parts and accessories

Aftermarket Product Notice

This is an aftermarket lighting conversion. Ford and F-150 names are used only to identify compatibility. Verify the confirmed 1978-1979 rectangular sealed-beam configuration before purchase. The buyer is responsible for proper installation, alignment and lighting compliance.