2020 Genesis G90 Bulb Size

Decision: This bulb size chart identifies compatible lamps for a 2020 Genesis G90, compiled to reduce guesswork when replacing headlights, fog, or interior bulbs. Constraints include variation across trim levels and market differences, so evidence from OEM manuals and visual inspection informed the list, with limitations noted where fitment can vary. Options are presented by bulb type and socket, enabling a quick comparison between stock specifications and common aftermarket alternatives. Interpretation focuses on ease of replacement and electrical compatibility, forming a hypothesis about likely fitment outcomes when parts are chosen by socket rather than appearance. Recommendation: use the chart as a starting point, verify against your vehicle’s manual, and confirm fit before purchase. Affiliate disclaimer: some links on this page are affiliate links; if you buy through them I may earn a commission at no extra cost, which supports continued testing and documentation. Risks include model-specific exceptions and supplier inconsistencies, which the chart flags where relevant.