10 Years Available
Chevrolet K30 Light Bulb Sizes
Complete bulb size reference for the Chevrolet K30 from 1977 to 1986. Find headlight, fog light, turn signal, and brake light bulb sizes for every model year.
The Chevrolet k30 changed low beam specifications across model years — 1981–1986: H4656; 1977–1980: H6024; 1983–1985: H6054. Make sure to select your exact year below to get the right bulb size.
Year Range
1977 – 1986
10 model yearsBulb Sizes Across Years
| Position | Bulb Type(s) | Years | Status |
|---|---|---|---|
| High Beam | H4651(1981–1986) 168(1980–1980) | 7 years | Changed |
| Turn Signal Front | 1157A(1979–1982) 3057NA(1986–1986) 3157CK(1985–1985) 1157(1981–1981) | 6 years | Changed |
| Low Beam | H4656(1981–1986) H6024(1977–1980) H6054(1983–1985) | 10 years | Changed |
| Side Marker | 168(1977–1984) 194(1985–1986) | 10 years | Changed |
| Parking Light | 1157A(1979–1982) 3157CK(1985–1986) 1157(1981–1981) | 6 years | Changed |
| Reverse Light | 1156(1979–1986) | 8 years | Consistent |
| Brake Light | 1157(1979–1982) | 4 years | Consistent |
| Turn Signal Rear | 1157(1979–1982) | 4 years | Consistent |
| Tail Light | 1157(1979–1982) | 4 years | Consistent |
Common K30 Replacement Parts
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Frequently Asked Questions
We have bulb size data for the Chevrolet K30 from 1977 to 1986, covering 10 model years. Select your year below for a complete position-by-position bulb chart.
Yes, the Chevrolet K30 changed low beam bulb specifications across generations: 1981–1986: H4656; 1977–1980: H6024; 1983–1985: H6054. Make sure to check your exact year using the list below.
The Chevrolet K30 uses a H4656 bulb for the low beam and a H4651 for the high beam. Select your year below for the exact fitment chart.
Yes. The Chevrolet K30 uses a H4656 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.