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The Chevy Silverado 1500, produced from 1999 to 2002, is a classic full-size pickup truck that has stood the test of time. To ensure it remains a safe and efficient ride, upgrading or replacing the Chevrolet Silverado 1500 LED bulbs is key. If you don’t know what bulb size your Chevy needs, this guide is for you. We compiled this bulb size chart for 1999, 2000, 2001, and 2002 Chevy Silverado 1500.
For trim-specific differences on a 1999–2002 Silverado 1500, use the vehicle bulb finder to verify the bulb before ordering.
Upgrading the lights on your 1999–2002 Chevy Silverado 1500? Use code 10SE at checkout to save 10% on eligible SEALIGHT products.
1999-2002 Chevy Silverado 1500 Bulb Size Reference
Here's a handy bulb size chart to help you find the correct replacement bulb size for your vehicle's lighting system:
| Low Beam Headlights | 9006/HB4 |
| High Beam Headlight | 9005/HB3 |
| Fog Light | 880 |
| Brake Light (Rear) | 3157 |
| Brake Light (High-Mounted) | 912/921 |
| Parking Brake Indicator | PC74 |
| Back Up (Reverse) Light | 3156/3157 |
| Tail Light | 3156 |
| Front Turn Signal Bulb | 3156 |
| Rear Turn Signal Bulb | 3156 |
| Parking Light | 3157/3157NA |
| Side Marker | 194 |
| Ash Tray Light | 194 |
| Courtesy Light (1999, 2000, 2001) | 1003/578/211-2/74 |
| Courtesy Light (2002) | 194/74 |
| Dome Light | 221-2/578 |
| Glove Box Light | 194 |
| License Plate Light | 194 |
| Map Light | 194 |
| Trunk/Cargo Light | 912 |
| Stepwell Light | 168/194 |
Important Note: While this chart provides a general overview of bulb sizes, we recommend double-checking your owner's manual or existing bulbs to ensure accuracy before making any replacements.
Best LED Headlight Bulbs for 1999–2002 Chevy Silverado 1500
The 1999–2002 Chevy Silverado 1500 uses separate 9006 low-beam and 9005 high-beam bulbs. This setup allows owners to replace both beam positions with one matching four-bulb set.
Before upgrading a 20-plus-year-old truck, inspect the headlight lenses, sockets and connectors. Cloudy lenses or heat-damaged sockets can limit the improvement produced by new bulbs.
Among SEALIGHT’s available headlight series, the following three are the best matches for different 1999–2002 Silverado restoration needs:
| SEALIGHT series | Recommendation | Best match for this Silverado |
|---|---|---|
| SEALIGHT S7S | Brightest option | Maximum output from clear, properly aimed factory housings |
| SEALIGHT S2 | Balanced option | Replacing worn low- and high-beam halogen bulbs together |
| SEALIGHT L2S | Compact option | Easier installation with less equipment behind an older housing |
SEALIGHT S7S 9005/9006 — Brightest Headlight Option
The S7S is the highest-output option in this comparison. It is best suited to a 1999–2002 Chevy Silverado 1500 with clear lenses and headlight housings in good condition.
The SEALIGHT S7S 9005/9006 LED headlight bulbs include two 9006 low-beam bulbs and two 9005 high-beam bulbs. Active cooling manages heat during extended operation, while the internal power supply avoids a separate external driver box.
Choose S7S when maximum headlight output is the priority. Check the finished beam pattern after installation because brighter bulbs cannot correct cloudy lenses or poor headlight aim.
SEALIGHT S2 9005/9006 — Best Balanced Upgrade
The S2 is the practical choice for refreshing both headlight positions without moving to the highest-output series. It suits an older Silverado that still uses worn or mismatched halogen bulbs.
The SEALIGHT S2 9005/9006 LED headlight bulbs provide all four bulbs required for the separate low- and high-beam positions. The set produces consistent 6500K white output across both headlamp assemblies.
Choose S2 for a complete headlight refresh that balances output, cooling and price.
SEALIGHT L2S 9005/9006 — Best for Compact Installation
The L2S is the better fit when installation space and simple wiring matter more than maximum output. Its compact 1:1-style body is useful when working with the original headlight housings on an older Silverado.
The SEALIGHT L2S 9005/9006 LED headlight bulbs include both headlight sizes and use an internal power supply. There is no separate driver box to secure behind the housing.
Chevrolet’s original replacement procedure removes the complete headlamp assembly by releasing two retaining pins at the top. Inspect the pins and electrical connectors before reinstalling the assembly.
Best 880 LED Fog Light Bulbs for 1999–2002 Chevy Silverado 1500
The 1999–2002 Chevy Silverado 1500 uses an 880 fog light bulb in factory housings equipped with serviceable fog lamps. This separates the early model range from later Silverado applications that commonly use another fog-light base.
The SEALIGHT XF3A 880/885 LED fog light bulbs are the recommended 880 upgrade. They produce 10,000 lumens and 30 watts per pair, with a compact fanless aluminum body and IP68 protection.
The Silverado’s fog lamps sit low in the bumper, where connectors and seals receive more exposure to water and road debris. Check for corrosion, cracked wiring and moisture inside the housing before installing new bulbs.
Other LED Bulbs for 1999–2002 Chevy Silverado 1500
Beyond the headlights and fog lights, owners most often replace the tail, brake, turn-signal and reverse bulbs. These positions use related bulb families, but the required color and operating function are different.
1999–2002 Chevy Silverado 1500 Tail and Brake Light Bulbs
The rear tail and brake lamps commonly use a 3157 dual-intensity bulb. The lower output serves as the tail light, while the brighter output signals braking.
The red SEALIGHT SLJ3 3157/3156 LED tail and brake light bulbs are designed for compatible rear-light positions. After installation, confirm that the brake output is clearly brighter than the tail-light output.
The center high-mounted stop lamp uses a separate 912/921-family bulb, not a 3157.
1999–2002 Chevy Silverado 1500 Turn Signal Bulbs
The front parking and turn-signal position commonly uses a 3157NA bulb, while the rear turn signal commonly uses the 3157 family. Select amber output for a clear front lens and match the rear bulb color to the original lens.
The SEALIGHT L2 3157/3156 amber LED turn-signal bulbs fit compatible 3157-family signal positions. If hyperflash occurs after installation, contact SEALIGHT customer support for a compatible decoder.
1999–2002 Chevy Silverado 1500 Reverse Light Bulbs
The reverse lights commonly use the 3157 family and require white output. The SEALIGHT SLJ3 3157/3156 LED reverse light bulbs produce 6500K white light and 3,200 lumens per pair for compatible factory sockets.
Before installation, inspect the socket contacts and housing seals. Corrosion, heat damage or moisture inside a 20-plus-year-old taillight assembly should be repaired before fitting new bulbs.
Frequently Asked Questions
What Size Headlight Bulbs Does a 2002 Chevy Silverado 1500 Use?
A 2002 Chevy Silverado 1500 uses 9006/HB4 low-beam bulbs and 9005/HB3 high-beam bulbs. Replacing both sides requires two 9006 bulbs and two 9005 bulbs.
What Size Headlight Bulbs Does a 1999 Chevy Silverado Use?
A 1999 Chevy Silverado 1500 uses 9006/HB4 low-beam bulbs and 9005/HB3 high-beam bulbs. The truck has separate bulbs for its low- and high-beam positions.
What Size Fog Light Bulb Does a 2002 Chevy Silverado 1500 Use?
A 2002 Chevy Silverado 1500 with factory serviceable fog lights uses an 880 bulb. Do not select the 9145 bulb commonly used by 2003–2006 Silverado models.
What Brake Light Bulb Fits a 2002 Chevy Silverado 1500?
The main rear brake and tail-light position uses a 3157 dual-intensity bulb. The center high-mounted brake light uses a separate 912 bulb. Chassis-cab configurations may use different rear bulbs.
What LED Bulbs Are Compatible With a 2002 Chevy Silverado?
Compatible bulb families include 9006 low beams, 9005 high beams, 880 fog lights and 3157 rear-light bulbs. SEALIGHT offers matching LED options for these serviceable positions, but the bulb color and function must also match the original application.
Final Thoughts
This 1999–2002 Chevy Silverado 1500 bulb size guide confirms 9006 low beams, 9005 high beams and 880 fog lights. Before upgrading, repair cloudy lenses, corroded connectors or damaged sockets that could limit the new bulbs.
Find compatible replacements in the SEALIGHT Chevy Silverado 1500 LED bulb collection, organized by bulb size and lighting position.
