Compare Kenworth W990 replacement headlights, including Alpha Series LED assemblies, halo LED designs and halogen-beam options with LED accents. Match the exact product’s listed years, original housing and connections before choosing.
Select the required Driver or Passenger side and black or chrome finish where offered. Confirm the package quantity, main-beam light source and any separate DRL or signal wiring before ordering.
Start with Alpha Series where its listed application matches your truck, then compare other suitable assemblies. Use the housing and connections actually installed as the reference for fitment and service parts.
Use the product’s own year range, manufacturer part number, mounting and original-equipment references. Alpha Series lists 2018–2025 W990 applications; the chrome halogen-beam assembly reviewed here lists 2018–2026. A year range accepted for one design does not establish fitment for another.
Check the low- and high-beam specifications separately from LED accents. The chrome assembly with LED DRL light bar lists H7 low-beam and H1 high-beam bulbs, each rated 12V 55W. Alpha Series is a complete LED assembly, not a loose-bulb kit for an existing housing.
Match the selected side and lighting style to the other headlight. Alpha-W990-L is the Driver option and Alpha-W990-R is Passenger; BTS sells each side separately. Confirm the selected listing’s contents rather than inferring a pair from a two-headlight photograph.
Review main-beam, turn-signal, marker and position-light wiring for the exact assembly. Alpha’s optional DRL harness connects to both headlights; confirm harness and connector-cap contents for an individual-side order. Follow its instructions for white/yellow modes, test all functions and check beam aim.
Start with Alpha Series when the exact listing supports your truck’s year and equipment, then compare other suitable assemblies.
No. Check the year range for the exact manufacturer part. A range listed for one headlight family cannot be transferred to every W990 product.
Check the package quantity and any Driver or Passenger variation. Do not infer a pair from a two-headlight photograph or a recommendation to replace both sides.
Installation requirements depend on the assembly and its lighting functions. Compare the main connector and any separate signal or position-light wiring with the exact instructions.
Use the bulb specification for the housings now installed. An OEM guide describes its stated original equipment and may not cover a replacement housing’s bulb choices.
No. A headlight can combine halogen low- and high-beam bulbs with LED daytime running lights or turn signals. The chrome W990 assembly listed here specifies H7 low-beam and H1 high-beam bulbs. Read the main light-source specification for your exact selection.
The product guide describes an optional harness connecting both headlights to add the key-on DRL function. Because BTS sells the headlights individually, confirm which harness and connector-cap components are supplied with the side you are ordering. Review the Alpha W990 listing and installation guide for wiring and lighting-mode instructions.
