Factory headlight setup not identified

1991 Geo Storm Headlight Bulbs & Lighting Guide

Factory bulb sizes and relevant BulbFacts-tested replacement evidence for the 1991 Geo Storm.

Source-listed fitment data supplied by CarBulbGuide. Confirm the installed bulbs and configuration before ordering.

Low beam: H4703
High beam: H4701
Factory setup: Factory headlight setup not identified

Representative car or sedan image for 1991 Geo Storm — Representative car or sedan image

Best headlight upgrades

BulbFacts has a supported bulb-size record, but does not currently have enough applicable product evidence to show a responsible recommendation for this headlight system.

Factory headlight setup not identified

Low Beam: H4703 · High Beam: H4701

Fitment confirmed; product evidence is limited. Choose or verify the installed factory headlight system before using a bulb size or product recommendation.

Other bulbs

Available exterior and interior lighting data for this model year.

Center High Mount Stop Light: 921Verify installed bulb
Front Side Marker: 194Verify installed bulb
Front Turn Signal: 1157Verify installed bulb
High Beam Indicator: 2721Verify installed bulb
License Plate Light: 168Verify installed bulb
Parking Light: 1157Verify installed bulb
Parking Brake Indicator: 2721Verify installed bulb
Rear Side Marker: 194Verify installed bulb
Rear Turn Signal: 1156Verify installed bulb
Reverse Light: 1156Verify installed bulb
Turn Signal Indicator: 2721Verify installed bulb

Technical details and sources

Confirm the installed bulb, connector, housing, and factory system before ordering.

Position	Bulb or system	Fitment status
Low BeamFactory system not specified	H4703	Bulb size confirmed
High BeamFactory system not specified	H4701	Bulb size confirmed

Fitment note: Verify the installed bulb, connector, housing, and factory system before ordering. A bulb-size match is not automatically a conversion recommendation or proof of vehicle-specific testing.