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2021 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.

Verify before buying: check the bulb number printed on your existing bulb, confirm your trim and factory lighting package, and review the seller's fitment notes.
Disclosure: We may earn a commission from links marked Affiliate. Unmarked retailer links may be plain search links. Always verify bulb fitment before purchasing.

2021 Chevrolet Silverado 1500 Bulb Size Chart

PositionBulb CodeAliasesTrim / PackageFactory TypeConfidenceReviewNotesShop
High Beam9005HB3Standard listingHalogenHigh
Verified2026-05-16

XenonPro and Auxito list 9005/HB3 high beam for 2019-2021 Silverado 1500 halogen applications. The 2021 owner manual separates base-level bulb replacement from LED/midlevel/uplevel dealer-service lamps, so factory LED/HID packages still require trim verification.

AmazoneBay
Low BeamH11H8 / H9 / H16Standard listingHalogenHigh
Verified2026-05-16

XenonPro and Auxito list H11/H8/H9-family low beam for 2019-2021 Silverado 1500 halogen applications. The 2021 owner manual indicates LED and higher-level headlamp assemblies may be dealer-service items, so factory lighting package verification remains necessary.

AmazoneBay
Turn Signal Rear7443—Standard listingHalogenHigh
Verified2026-05-16

XenonPro lists rear turn signal as 7440/7443 and Auxito lists 7443/7440 for 2019-2021 Silverado 1500. The owner manual confirms rear stop/tail/turn lamp service is configuration-dependent, including dealer service for some cab/body lighting assemblies.

Amazon
License Plate194—Standard listingHalogenHigh
Verified2026-05-16

XenonPro lists license plate light as 194/168 and Auxito lists T10/194/168 for 2019-2021 Silverado 1500.

Amazon
Reverse Light921—Standard listingHalogenHigh
Verified2026-05-16

XenonPro lists reverse light as 912/921 and Auxito lists T15/912/921 for 2019-2021 Silverado 1500. The owner manual includes back-up lamp replacement procedures but notes some cab/body configurations should be handled by a dealer.

Amazon
Brake Light7443—Standard listingHalogenHigh
Verified2026-05-16

XenonPro lists rear brake light as 7440/7443 and Auxito lists 7443/7440 for 2019-2021 Silverado 1500. The owner manual confirms LED lighting assemblies and some rear lamp service paths are dealer-service items, so this applies to replaceable halogen rear lamp bulbs.

Amazon
Side Marker7443—Standard listingHalogenHigh
Verified2026-05-16

XenonPro lists front and rear side marker as 7440/7443 and Auxito lists 7443/7440 for 2019-2021 Silverado 1500. The owner manual identifies sidemarker lamp replacement while also noting LED assemblies require dealer service.

Amazon

2021 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 2021 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

See an incorrect bulb size? Submit a correction.

How do the 2021 Chevrolet Silverado 1500's bulbs compare to other years?

The 2021 Chevrolet Silverado 1500 changed bulb sizes from 2020. The previous model year used a different configuration.

The 2022 model switched to a different bulb configuration.

This bulb configuration covers the 2021 model years. ← 2020 2022 →

Finding the best installation guide...

Other Silverado 1500 Years

2022202020182017201620152014201320122011201020092008200720062005200420032002200120001999

More from Chevrolet

3A3B3C3D3E3F3GAll Light Trucks

Other Vehicles That Use H11 / H8 / H9 / H16 Bulbs

2023 Honda Odyssey2023 Nissan Maxima2023 Nissan Murano2023 Toyota 4Runner2023 Toyota Tacoma2022 Ford Edge

H11 / H8 / H9 / H16 Comparisons

9005 vs H119006 vs H119012 vs H11H11 vs H7

Frequently Asked Questions

Our database lists H11 for the 2021 Chevrolet Silverado 1500 low beam headlights. Verify the bulb number on your existing bulb and confirm your trim or factory lighting package before buying.

Our database lists 9005 for the 2021 Chevrolet Silverado 1500 high beam position. Some vehicles vary by trim, lighting package, or previous housing changes.

Dim headlights on a 2021 Chevrolet Silverado 1500 can come from aging halogen bulbs, cloudy lenses, weak electrical connections, or an incorrect bulb. Confirm the listed H11 size against the bulb in the housing before choosing a replacement or upgrade.

The 2021 Chevrolet Silverado 1500 does not have a fog light bulb listed in our current database. If your vehicle has fog lights, verify the bulb in the housing or owner's manual before buying.

The 2021 Chevrolet Silverado 1500 uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

LED upgrades are available for many H11 applications, but fitment, beam pattern, dashboard warnings, and road-use legality can vary. Use products that list your exact bulb family, such as H11 / H8 / H9 / H16, and verify the factory housing before buying.

Yes — the 2021 Chevrolet Silverado 1500 uses different bulb sizes than the 2020 model. The 2021 generation introduced this bulb configuration.

The 2021 Chevrolet Silverado 1500 is the only year in the 2021 generation to use the H11 bulb for the low beam headlight.

Access varies by engine bay layout and headlight housing. Before disassembly, confirm the listed H11 low beam size on the existing bulb or owner's manual, then follow the service procedure for your exact trim.

Rules for LED headlight retrofits vary by location and by housing type. Avoid products that create glare or lack road-use compliance claims, and check local requirements before using an LED conversion on public roads.

Replacement cost depends on bulb technology, brand, and labor access. Common halogen H11 replacements are usually cheaper than LED conversion kits. Check seller fitment notes before comparing prices.

Halogen bulbs and LED replacements differ in output, heat behavior, beam pattern, and electronics. A correct bulb code does not guarantee a correct LED beam pattern, so verify physical fit and seller compatibility notes for the 2021 Chevrolet Silverado 1500.