Warranty & Return
Warranty & Return
The Best LED Bulbs for 2016-2018 GMC Sierra 1500

Lasfit offers bright, durable, and high-quality LED bulbs specifically designed for different trims of your GMC Sierra 1500. With quick and easy installation, you can upgrade your lighting in minutes and enjoy a brighter, safer driving experience.
How These Premium LED Bulbs Work on GMC Sierra 1500
Backup Light For 2018 GMC Sierra 1500
Front Turn Signal Lights For GMC Sierra 1500
Cargo Lights for GMC Sierra 1500
GMC Sierra 1500 Bulb Size Chart (2016-2018)
| Location | Bulb Size | Recommend Product Series | Watt/Lumens(per bulb) | Key Features |
|---|---|---|---|---|
| Front Turn Signal Light | 7443 | T3-T20 Series | 24W/2000LM | dual-color switchback design, built-in canbus decorder, plug and play |
| Backup Light | 921 | T-T15 Series | 13W/1500LM | plug and play installation, canbus error free design |
| Cargo Light | 921 | T-T15 Series | 13W/1500LM | plug and play installation, canbus error free design |
| 3rd Brake Light | 921 | T-T15 Series | 13W/1500LM | brilliant red, plug and play installation, canbus error free design |
| Rear Side Marker Light | 168 | L-T10 Series | 400LM | brilliant red, built-in canbus design, non-polarity design |
| License Plate Light | 168 | L-T10 Series | 400LM | safety protection, built-in canbus design, non-polarity design |
The Main Features of LED Turn Signal Lights for GMC Sierra 1500


- Brighter, Yet Glare-Free Lighting: The Lasfit T3 turn signal bulbs use 20 high-performance 3030 SMD LED chips to deliver a significant brightness upgrade over stock halogen bulbs—perfect for safer lane changes and turns in your GMC Sierra 1500. The enhanced output improves visibility without harsh glare, keeping both you and oncoming drivers safe.
- Built-in CanBus System – No Errors, No Hyper Flash: Equipped with a micro ceramic resistor and intelligent power regulation, the T3 series ensures error-free installation with no hyper flashing. Enjoy a stable, plug-and-play LED upgrade that works seamlessly with your vehicle’s system.
FAQs: Everything You Need to Know About LED Bulbs for Your 2016-2018 GMC Sierra 1500
Q1: I don’t want switchback front turn signals. Are there pure amber options?
A1: Yes! If you prefer pure amber turn signals, we have tested amber 7443 LED bulbs available.


































