2021 GMC Sierra 2500HD Headlight Bulb Size
By clicking the link you will be redirected to Amazon. The aftermarket bulbs & headlights below may improve the illumination of your vehicle and make it stand out from the crowd.
Lightninglab.org is reader-supported. When you buy through links on our site, we may earn an affiliate commission.
Headlight Bulb High Beam and Low Beam - D5S
Fog Light Bulb Front - 5202 LED
Center High Mount Stop Light Bulb - 921
Brake Light Bulb - 7443
Turn Signal Light Bulb Front - 7443
License Plate Light Bulb - 2825
Parking Light Bulb - 7443
Tail Light Bulb - 7443
Turn Signal Light Bulb Rear - 7443
Side Marker Light Bulb Rear - 194
Back Up Light Bulb - 921
Trunk or Cargo Area Light - 921
2021 GMC Sierra 2500HD High and Low Beam bulb size - D5S
Xenon HID Conversion Kit
- Get up to 200% more vision on the road.
- Consumes less energy and enhances visibility on the road.
- Original equipment quality with an Electronic high voltage starter and ballast integrated into the base of this innovative design.
- DOT compliant with precise light distribution.
Product review
LED Lights
Upgrade your vehicle's lighting system with these LED headlight bulb kits and enjoy a focused and wider beam, better visibility, and enhanced clarity. With high-quality and reliable products, you can drive with confidence and peace of mind.
This aftermarket LED headlight conversion kit is designed to perfectly replace D5S OEM Xenon bulbs...
Product review
2021 GMC Sierra 2500HD Fog Light bulb size - 5202 LED
LED Lights
The BEAMTECH 5202 Led Fog Light Bulbs come in a set of 2 bulbs, each equipped with 6 SEOUL Z8Y19 high power CSP chips. These bulbs have a lower power consumption compared to halogen bulbs, resulting in energy savings while providing a greater light output. Each bulb has a power...
Product review
2021 GMC Sierra 2500HD Center Stop bulb size - 921
LED Lights
- 300% Brighter - 921 led bulb has 3030 SMD LED chips. You can see farther and clearer when reversing at night.
- Easy Installation - 1:1 design with halogens, non-polarity, play, and plug. 921 led bulb reverse light is fit for 921,912, T15, 906, 904, 902, 922, W16W. Upgrade replacement for reverse...
Product review
You want bright, stylish lighting for your car but you don’t want to keep replacing burned-out bulbs. Philips Ultinon LED lights to give you high-powered, automotive-grade LEDs, with a lifetime of up to 8 years. With conventional bulbs, the more powerful the light, the shorter its lifespan. Philips Ultinon LEDs...
Product review
2021 GMC Sierra 2500HD Brake bulb size - 7443
LED Lights
SYLVANIA ZEVO LED bulbs deliver a brighter, whiter, sharper light. As easy as changing a light bulb, you can have improved performance and safety for interior and exterior applications. World-class manufacturing and high-quality materials guarantee a lifetime warranty on your ZEVO bulbs. LED bulbs used for turn signals may require...
Product review
– Each bulb has 102 pcs high power 4014 led chips, with HD projector, stronger light penetration.
– 360 Degree lighting ensures optimal visibility, hollow inner body design better for heat dissipation.
– AUXITO 7443 led bulbs utilize newest powerful and high quality 3030SMD led chips. Generating 300% brighter output...
Product review
Halogen Lights
- Easy To Replace - Sylvania Long Life Miniature Bulbs are easy to install and show instant results. Designed for durability, greater safety, and lower maintenance by the leading supplier of automotive lighting.
- Low Maintenance - Long Life bulbs perform twice as long as any other standard miniature bulbs.
Sylvania's 7443 Long Life...
Product review
2021 GMC Sierra 2500HD Turn Signal bulb size - 7443
LED Lights
SYLVANIA ZEVO LED bulbs deliver a brighter, whiter, sharper light. As easy as changing a light bulb, you can have improved performance and safety for interior and exterior applications. World-class manufacturing and high-quality materials guarantee a lifetime warranty on your ZEVO bulbs. LED bulbs used for turn signals may require...
Product review
– Each bulb has 102 pcs high power 4014 led chips, with HD projector, stronger light penetration.
– 360 Degree lighting ensures optimal visibility, hollow inner body design better for heat dissipation.
– AUXITO 7443 led bulbs utilize newest powerful and high quality 3030SMD led chips. Generating 300% brighter output...
Product review
Halogen Lights
- Easy To Replace - Sylvania Long Life Miniature Bulbs are easy to install and show instant results. Designed for durability, greater safety, and lower maintenance by the leading supplier of automotive lighting.
- Low Maintenance - Long Life bulbs perform twice as long as any other standard miniature bulbs.
Sylvania's 7443 Long Life...
Product review
2021 GMC Sierra 2500HD License Plate bulb size - 2825
LED Lights
– Better beam pattern: each bulb has 5 pcs high power SMD led, color temperature: 6000K(xenon white), voltage: 12V
– No polarity no flip: it is truly no polarity, can light on two sides, no need more modification or flip, plug and play, easy install within 5 minutes.
Products with electrical...
Product review
2021 GMC Sierra 2500HD Parking bulb size - 7443
LED Lights
SYLVANIA ZEVO LED bulbs deliver a brighter, whiter, sharper light. As easy as changing a light bulb, you can have improved performance and safety for interior and exterior applications. World-class manufacturing and high-quality materials guarantee a lifetime warranty on your ZEVO bulbs. LED bulbs used for turn signals may require...
Product review
– Each bulb has 102 pcs high power 4014 led chips, with HD projector, stronger light penetration.
– 360 Degree lighting ensures optimal visibility, hollow inner body design better for heat dissipation.
– AUXITO 7443 led bulbs utilize newest powerful and high quality 3030SMD led chips. Generating 300% brighter output...
Product review
Halogen Lights
- Easy To Replace - Sylvania Long Life Miniature Bulbs are easy to install and show instant results. Designed for durability, greater safety, and lower maintenance by the leading supplier of automotive lighting.
- Low Maintenance - Long Life bulbs perform twice as long as any other standard miniature bulbs.
Sylvania's 7443 Long Life...
Product review
2021 GMC Sierra 2500HD Tail Light bulb size - 7443
LED Lights
SYLVANIA ZEVO LED bulbs deliver a brighter, whiter, sharper light. As easy as changing a light bulb, you can have improved performance and safety for interior and exterior applications. World-class manufacturing and high-quality materials guarantee a lifetime warranty on your ZEVO bulbs. LED bulbs used for turn signals may require...
Product review
– Each bulb has 102 pcs high power 4014 led chips, with HD projector, stronger light penetration.
– 360 Degree lighting ensures optimal visibility, hollow inner body design better for heat dissipation.
– AUXITO 7443 led bulbs utilize newest powerful and high quality 3030SMD led chips. Generating 300% brighter output...
Product review
Halogen Lights
- Easy To Replace - Sylvania Long Life Miniature Bulbs are easy to install and show instant results. Designed for durability, greater safety, and lower maintenance by the leading supplier of automotive lighting.
- Low Maintenance - Long Life bulbs perform twice as long as any other standard miniature bulbs.
Sylvania's 7443 Long Life...
Product review
2021 GMC Sierra 2500HD Turn Signal Rear bulb size - 7443
LED Lights
SYLVANIA ZEVO LED bulbs deliver a brighter, whiter, sharper light. As easy as changing a light bulb, you can have improved performance and safety for interior and exterior applications. World-class manufacturing and high-quality materials guarantee a lifetime warranty on your ZEVO bulbs. LED bulbs used for turn signals may require...
Product review
– Each bulb has 102 pcs high power 4014 led chips, with HD projector, stronger light penetration.
– 360 Degree lighting ensures optimal visibility, hollow inner body design better for heat dissipation.
– AUXITO 7443 led bulbs utilize newest powerful and high quality 3030SMD led chips. Generating 300% brighter output...
Product review
Halogen Lights
- Easy To Replace - Sylvania Long Life Miniature Bulbs are easy to install and show instant results. Designed for durability, greater safety, and lower maintenance by the leading supplier of automotive lighting.
- Low Maintenance - Long Life bulbs perform twice as long as any other standard miniature bulbs.
Sylvania's 7443 Long Life...
Product review
2021 GMC Sierra 2500HD Side Marker Rear bulb size - 194
LED Lights
Product benefits:
- Canbus error free, no error after installation.
- 360-degree lighting angle, no visual blind spot.
- Energy-Saving, low power consumption for a longer life span.
- Easy to install, non-polarity just plug and play.
- Brilliant red color light brings your car a refreshed new look.
- Fits directly into multiple bulb-size sockets such as 168 175 194 2825...
Product review
- 360-degree light output coverage.
- 5 times more light than conventional interior lighting.
- Up to 12 years lifetime compared to regular halogen bulbs.
Product review
Halogen Lights
– Longer life than basic bulbs
– Legal for on road use
– OE (Original Equipment) Manufacturer
– Light bulbs dim over time and require replacement
– Replace in pairs for optimal performance
Product review
2021 GMC Sierra 2500HD bulb size - 921
LED Lights
- 300% Brighter - 921 led bulb has 3030 SMD LED chips. You can see farther and clearer when reversing at night.
- Easy Installation - 1:1 design with halogens, non-polarity, play, and plug. 921 led bulb reverse light is fit for 921,912, T15, 906, 904, 902, 922, W16W. Upgrade replacement for reverse...
Product review
You want bright, stylish lighting for your car but you don’t want to keep replacing burned-out bulbs. Philips Ultinon LED lights to give you high-powered, automotive-grade LEDs, with a lifetime of up to 8 years. With conventional bulbs, the more powerful the light, the shorter its lifespan. Philips Ultinon LEDs...
Product review
2021 GMC Sierra 2500HD Trunk Area bulb size - 921
LED Lights
- 300% Brighter - 921 led bulb has 3030 SMD LED chips. You can see farther and clearer when reversing at night.
- Easy Installation - 1:1 design with halogens, non-polarity, play, and plug. 921 led bulb reverse light is fit for 921,912, T15, 906, 904, 902, 922, W16W. Upgrade replacement for reverse...
Product review
You want bright, stylish lighting for your car but you don’t want to keep replacing burned-out bulbs. Philips Ultinon LED lights to give you high-powered, automotive-grade LEDs, with a lifetime of up to 8 years. With conventional bulbs, the more powerful the light, the shorter its lifespan. Philips Ultinon LEDs...
Product review
The 2021 GMC Sierra 2500HD bulb size chart specifies the recommended lamp part numbers and types for all positions of its electrical system, like headlights, fog lights, brake lights, side markers, etc. If you want to upgrade the headlights, the aftermarket bulb you select has to be the exact size your 2021 GMC Sierra 2500HD requires to fit into the housing and match the wattage and voltage specifications. Pay special attention to the marking and make sure the bulb is “DOT” compliant to avoid legal issues.