OEM & aftermarket headlight housing from top brands — compare prices, check fitment, order with free delivery
Best price from 7+ suppliers
Browse headlight housing from trusted brands. Compare prices, check vehicle compatibility, and order with fast UK delivery.
Headlight housing buying guide — what to know before you buy
The headlight housing (headlamp unit) is the complete outer assembly that contains the bulb, reflector, projector lens, and adjusters. Housings can be damaged by stone chips, road debris impacts, condensation ingress, UV-degraded lenses, or collision damage. At CarParts247 we stock replacement headlamp units in OE-specification and equivalent quality, matched by make, model, year, and side.
Reasons to replace a headlight housing
Beyond collision damage, there are several gradual failure modes that justify housing replacement.
Yellowed or crazed lens reducing light output — an MOT advisory or failure
Condensation trapped inside the housing causing misted beam patterns
Cracked housing allowing water ingress and corrosion of the reflector
Melted reflector from incorrect bulb type or wattage installed previously
Selection and fitment
Headlamp units are side-specific and often variant-specific within a model range. Check carefully before ordering.
Identify driver-side (right-hand drive: nearside) or passenger-side (offside) clearly
Confirm the lighting technology: halogen, xenon/HID, LED, or adaptive LED
Check the indicator style — integrated DRL, separate amber, or smoked indicator affects part number
Verify headlamp aiming adjustment method: manual screw or electric adjuster motor
Set headlamp beam height after installation using a beam setter or aiming screen
Frequently Asked Questions
Can I polish a yellowed headlight lens instead of replacing the housing?
Yes, headlight restoration polishing kits can improve lightly yellowed lenses significantly. However, severely crazed or internally damaged lenses cannot be restored — replacement is the correct fix.
Why do headlights get condensation inside?
Headlight housings are vented to allow pressure equalisation with temperature changes. Worn vent caps or cracked housing seals allow moist air to enter, which then condenses on the cool lens inner surface.
Do I need to align the headlights after replacement?
Yes — always check and adjust beam height after fitting a new headlamp unit. Incorrectly aimed headlights are dangerous and an MOT failure.
