The Difference Between OEM and Aftermarket Car Headlights
2 Answers
The following are the differences between OEM and aftermarket headlights: Different sealing performance: The housing of OEM headlights maintains its sealing performance without degradation; the housing of aftermarket headlights may experience reduced sealing performance. Different price and quality: OEM headlights are relatively cheaper compared to aftermarket headlights, and thus, the quality is slightly inferior. Different craftsmanship: OEM headlights for cars are marked with the vehicle's logo, feature fine craftsmanship without flaws or burrs, whereas aftermarket headlights have poor craftsmanship with visible burrs, rough edges, and unclear printing.
I've repaired many cars and the difference between OEM and aftermarket headlights is striking: OEM lights are factory-made, perfectly matching the vehicle model with seamless installation, providing precise beam angles and stable brightness for excellent highway visibility at night. Their superior sealing offers top-tier waterproofing, dust isolation, and circuit protection. Aftermarket lights are cheaper and quicker to purchase, but their thin, brittle plastic cracks easily, leading to leaks. Their subpar bulbs often flicker, scatter light, and burn out quickly. Poor installation fit requires manual adjustments, wasting time. While aftermarket options are initially cheaper, they come with hidden risks and frequent replacements. For long-term safety, OEM lights are worth it—consistent, reliable illumination.