2020 Chevrolet Silverado 1500 Bulb Size Chart
Bulb sizes may vary by trim, factory lighting package, region, production date, and previous modifications. Verify the bulb number on your existing bulb before buying.
Last database update: May 2026. Manual review status: Manually reviewed 2026-05-16.
Audit priority: High traffic truck.
2020 Chevrolet Silverado 1500 Bulb Size Chart
| Position | Bulb Code | Aliases | Trim / Package | Factory Type | Confidence | Review | Notes | Shop |
|---|---|---|---|---|---|---|---|---|
| High Beam | 9005 | HB3 | Standard listing | Halogen | High | Verified2026-05-16 | XenonPro and Auxito list 9005/HB3 high beam for 2019-2021 Silverado 1500 halogen applications. Owner manual replacement guidance distinguishes serviceable halogen bulbs from factory LED and higher-level assemblies, so trim and lighting package verification remains necessary. | |
| Low Beam | H11 | H8 / H9 / H16 | Standard listing | Halogen | High | Verified2026-05-16 | XenonPro and Auxito list H11/H8/H9-family low beam for 2019-2021 Silverado 1500 halogen applications. Owner manual replacement guidance distinguishes serviceable halogen bulbs from factory LED and higher-level assemblies, so trim and lighting package verification remains necessary. | |
| Turn Signal Front | 7443 | — | Standard listing | Halogen | High | Verified2026-05-16 | XenonPro lists front turn signal as 7440/7443 and Auxito lists 7443/7440 for 2019-2021 Silverado 1500, with product-level listings showing trim/socket variation. Keep canonical value in the 7443/7440 family and require trim verification for LED or alternate front lamp packages. | |
| Brake Light | 7443 | — | Standard listing | Halogen | High | Verified2026-05-16 | XenonPro lists rear brake light as 7440/7443 and Auxito lists 7443/7440 for 2019-2021 Silverado 1500. This applies to replaceable halogen rear lamp bulbs; factory LED rear lamp assemblies may be dealer-service items. | |
| Side Marker | 7443 | — | Standard listing | Halogen | High | Verified2026-05-16 | XenonPro lists front and rear side marker as 7440/7443 and Auxito lists 7443/7440 for 2019-2021 Silverado 1500. Owner manual guidance separates replaceable bulbs from LED assemblies, so factory LED marker lamps require package verification. | |
| Reverse Light | 921 | — | Standard listing | Halogen | High | Verified2026-05-16 | XenonPro lists reverse light as 912/921 and Auxito lists T15/912/921 for 2019-2021 Silverado 1500. Owner manual guidance includes back-up lamp service with configuration caveats for some lighting assemblies. | |
| Turn Signal Rear | 7443 | — | Standard listing | Halogen | High | Verified2026-05-16 | XenonPro lists rear turn signal as 7440/7443 and Auxito lists 7443/7440 for 2019-2021 Silverado 1500. This applies to replaceable halogen rear lamp bulbs; factory LED rear lamp assemblies may be dealer-service items. | |
| Tail Light | 7443 | — | Standard listing | Halogen | High | Verified2026-05-16 | XenonPro lists tail light as 7440/7443 and Auxito lists 7443/7440 for 2019-2021 Silverado 1500. This applies to replaceable halogen rear lamp bulbs; factory LED rear lamp assemblies may be dealer-service items. | |
| License Plate | 194 | — | Standard listing | Halogen | High | Verified2026-05-16 | XenonPro lists license plate light as 194/168 and Auxito lists T10/194/168 for 2019-2021 Silverado 1500. |
2020 Chevrolet Silverado 1500 Fitment Notes
Across the 1999-2022 production range, our database shows changes in the listed High Beam, Low Beam, Brake Light positions. Use the chart above for this 2020 model, then confirm the bulb number in your vehicle before buying.
Known fitment limitations
- factory HID or LED packages may use different parts
- fog lights may depend on equipment package
- aftermarket headlight assemblies may use different bulbs
- regional models and production-date splits may differ
How do the 2020 Chevrolet Silverado 1500's bulbs compare to other years?
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