5 Years Available
BMW 633csi Light Bulb Sizes
Complete bulb size reference for the BMW 633csi from 1978 to 1983. Find headlight, fog light, turn signal, and brake light bulb sizes for every model year.
Our database lists the same H5006 low beam bulb for BMW 633csi entries from 1978 to 1983. Confirm your trim and factory lighting package before buying.
Year Range
1978 – 1983
5 model yearsCommon 633csi Replacement Parts
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Frequently Asked Questions
We have bulb size data for the BMW 633csi from 1978 to 1983, covering 5 model years. Select your year below for a complete position-by-position bulb chart.
No, the BMW 633csi has used the H5006 low beam bulb consistently across all 5 model years in our database. Any year in the 1978–1983 range uses the same bulb.
The BMW 633csi uses a H5006 bulb for the low beam and a H5001 for the high beam. Select your year below for the exact fitment chart.
Yes. The BMW 633csi uses a H5006 low beam, and direct-fit LED conversion kits for that size are widely available. LED upgrades typically produce 2–3× more light output than stock halogen and last 25,000+ hours. Look for a DOT-compliant kit with a proper beam cutoff pattern.
Select your model year from the list below. Each year page shows every bulb position — low beam, high beam, fog light, turn signal, and brake light — with the correct size and a link to buy it on Amazon.