Find semi-truck headlight assemblies, housings and related lighting by truck model and the headlight system already installed. Start with the make, model and year, then check the exact assembly, driver or passenger side, connector and any factory lighting restrictions.
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FAQ
Frequently asked questions about semi-truck headlights
What types of headlight replacement can I choose from?
Start by deciding whether you need a replacement bulb, a housing with removable bulbs, or a complete LED assembly. Projector and reflector describe the optics; halogen, HID and LED describe the light source. Read the exact product to establish which components are included.
Can I upgrade a truck that originally used sealed-beam headlights?
LED replacement units are available for several common sealed-beam formats. Match the original lamp designation, size, mounting bucket, voltage and connector. Check the product's notes for wiring adapters or mounting changes before ordering.
Will every headlight listed for my truck use the same bulbs?
No. An OEM bulb guide describes the original lighting setup. A replacement housing can use different bulbs: United Pacific lists H11 low and high beams for its Cascadia 31320 assembly, while its 31226 projection family uses H7 low and H1 high beams. Match the installed housing when choosing a replacement bulb.
Is every assembly a complete plug-in installation?
Check the exact product. Main-beam connectors, auxiliary-light wiring and mounting requirements can differ. Confirm driver or passenger side, individual or pair packaging, and any factory lighting exclusions.
How should I compare two LED options?
Compare the application, beam configuration, electrical requirements, included components and manufacturer documentation. Output, service life and certification claims belong to the exact lamp and intended installation; an LED label alone does not establish those properties.