The headlight bulb most commonly used in many Honda S2000 models is a dual‑filament bulb in the H4/9003 family. Some late or market-specific variants may use separate low‑ and high‑beam bulbs, and fog lights (if your car is equipped with them) typically rely on a different bulb type. To be certain, check your owner's manual or inspect the bulb itself, since year and market differences can change the exact specification.
This article outlines the typical configurations you’re likely to encounter across generations and regions, and provides guidance on how to confirm the exact bulb for your S2000.
Headlight configurations by generation
Headlight setups on the S2000 vary by model year and market. The following overview covers common stock arrangements and how they can differ between generations.
- AP1 (1999–2003): In many U.S./Canada and other markets, the headlights use a single dual‑filament bulb in the H4/9003 family to provide both low and high beams.
- AP2 (2004–2009): The later generation retains many headlamps that use a dual‑filament H4/9003 design, but some regional variants or trims may employ separate low‑beam and high‑beam bulbs depending on the assembly and market.
In short, the most common stock configuration for the S2000’s headlights is the H4/9003 family, with potential regional variations that may switch to separate low/high beam bulbs.
Other exterior bulbs you may encounter
Beyond the headlights themselves, the S2000’s other exterior lighting components follow common Honda practice, but can vary by market and equipment level. The following categories cover typical possibilities.
- Fog lights (if equipped): Often use H11 bulbs in many markets, though some European or JDM variants have used H3 or other equivalents depending on the original equipment.
- High beams: If the car uses a separate high‑beam bulb, it will belong to the same family as the headlamp system (for example, HB2/HB3 style) and is not universal across all years or trims.
Because several regional specifications exist, confirming the exact bulbs for your specific S2000 is best done by consulting the car’s bulb label, the owner’s manual, or a Honda parts diagram for your VIN.
How to confirm the exact bulb in your S2000
To verify the correct bulb for your car, remove the headlight bulb from the housing and read the markings on the base, which typically indicate the stock bulb designation (such as H4/9003 or H7). If access is difficult or the markings are unclear, consult your owner’s manual or a dealership parts catalog for your year and market. An online parts database or a local Hondaworks shop can also confirm the exact specification by VIN.
Summary
For most Honda S2000 models, the stock headlight bulb is from the H4/9003 family, providing dual low/high beams in a single bulb. However, some AP2 variants and regional specifications use different arrangements, including separate low‑beam and high‑beam bulbs. Fog lights, when present, commonly use H11, with occasional regional exceptions. Always verify with the owner’s manual or by inspecting the bulb base to ensure you buy the correct replacement for your specific car.