5 Years Available
BMW K1 Light Bulb Sizes
Complete bulb size reference for the BMW K1 from 1988 to 1993. Find headlight, fog light, turn signal, and brake light bulb sizes for every model year.
Every BMW k1 from 1988 to 1993 uses the same H4 low beam bulb — once you confirm your year is within this range, you only need one part number.
Year Range
1988 – 1993
5 model yearsCommon K1 Replacement Parts
Select Your Year
More from BMW
Frequently Asked Questions
We have bulb size data for the BMW K1 from 1988 to 1993, covering 5 model years. Select your year below for a complete position-by-position bulb chart.
No, the BMW K1 has used the H4 low beam bulb consistently across all 5 model years in our database. Any year in the 1988–1993 range uses the same bulb.
The BMW K1 uses a H4 bulb for the low beam. Select your year below for the exact fitment chart.
Yes. The BMW K1 uses a H4 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.