H4703 Bulb Fitment Guide

The H4703 bulb is used by 18 vehicles from 3 makes including Chevrolet, GMC, Pontiac. Browse the full compatibility list below.

Yes, LED replacements are available for the H4703 bulb size. LED H4703 bulbs offer brighter output, longer lifespan, and lower power consumption compared to halogen.

The H4703 bulb is commonly used in these positions: Low Beam. The exact position depends on your vehicle's make and model.

Standard halogen H4703 bulbs typically cost $10–$30 for a pair. LED H4703 conversion kits range from $25–$60. Premium brands may cost more but often offer better performance and warranty.

All H4703 bulbs share the same base and fitment, but they vary in technology (halogen, LED, HID), brightness, color temperature, and brand quality. We recommend LED for the best balance of brightness and lifespan.