Factory headlight setup not identified

1987 Buick Century Headlight Bulbs & Lighting Guide

Factory bulb sizes and relevant BulbFacts-tested replacement evidence for the 1987 Buick Century.

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 1987 Buick Century
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 ยท 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.

Ashtray Light
194Verify installed bulb
Automatic Transmission Indicator
194Verify installed bulb
Cargo / Trunk Light
1003Verify installed bulb
Courtesy Light
906Verify installed bulb
Dome Light
561Verify installed bulb
Engine Compartment Light
89Verify installed bulb
Front Side Marker
194Verify installed bulb
Front Turn Signal
1157AVerify installed bulb
Glove Box Light
194Verify installed bulb
License Plate Light
194Verify installed bulb
Map Light
906Verify installed bulb
Parking Light
1157AVerify installed bulb
Parking Brake Indicator
194Verify installed bulb
Rear Side Marker
194Verify installed bulb
Rear Turn Signal
1157Verify installed bulb
Reverse Light
1156Verify installed bulb
Turn Signal Indicator
194Verify installed bulb
Technical details and sources

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

PositionBulb or systemFitment status
Low BeamFactory system not specifiedH4703Bulb size confirmed
High BeamFactory system not specifiedH4701Bulb size confirmed

Each model year opens its own BulbFacts record. Bulb sizes and factory systems are not carried over from adjacent years.

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.