4-inch sealed-beam H4 headlight conversion listed for Buick Riviera 1975-1985. Verify the exact year, factory sealed-beam size, mounting points, wiring, and H4 connector before ordering.

Fitment and Conversion Details

• Listed fitment: Buick Riviera 1975-1985
• Configuration: 4-inch sealed-beam H4 headlight conversion
• Bulb and connector: H4 bulbs included; standard H4 plug
• Construction: metal housing, glass lens, 12V

Not listed for: other years, models, lamp sizes, or connector styles unless specifically matched.

Installation and Use

The source lists a direct-replacement sealed-beam conversion, an estimated installation time of 30-90 minutes, and notes that some vehicles may require minor trimming adjustments. Professional installation is recommended. Check mounting, lighting operation, and headlight aim after installation. A 1-year limited manufacturer warranty is listed under manufacturer terms. Follow applicable lighting requirements.

Frequently Asked Questions

Is this listed for Buick Riviera 1975-1985?

Yes, as listed; verify the exact year, factory lamp size, mounts, and wiring before purchase.

What is included?

The source lists headlight conversion housings and H4 light bulbs.

What should I expect during installation?

The source estimates 30-90 minutes and notes minor trimming adjustments may be required on some vehicles; professional installation is recommended.

What should I compare before ordering?

Compare factory sealed-beam size, mounting points, retaining hardware, H4 connector, wiring, prior modifications, and applicable lighting requirements.

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