XB LED Taillights (Smoked) | Sierra

Finish your Sierra HD’s lighting build with a matched smoked LED pair

If your truck’s factory taillights no longer suit the rest of the build, the Morimoto XB LED taillights replace the complete assemblies with smoked outer lenses, 3D light blades, and integrated LED functions. This listing is for the smoked version on the specified 2015–2019 GMC Sierra 2500 HD and 3500 HD applications, excluding dually trucks.

Walk around the truck after parking and the rear lighting becomes part of the same build as the front end, rather than an overlooked stock detail. Two rows of TIR optics illuminate the 3D blades for the brake and turn-signal functions, while white LED reverse lights serve backing-up duty. The smoked lens is the appearance choice; the operating colors remain red for brake, parking, and turn signals, and white for reverse.

Who this is for

• Owners of compatible, non-dually 2015–2019 GMC Sierra 2500 HD or 3500 HD trucks.
• Builds that call for smoked outer lenses and complete LED taillight assemblies rather than replacement bulbs.
• Factory-LED-equipped trucks whose required adapter setup has been confirmed before ordering.

Who this is not for

• Dually trucks. These are expressly excluded.
• Sierra 1500 models, other year ranges, or other vehicles without separately confirmed compatibility.
• Buyers wanting the red-lens version. Although the product family offers red and smoked lenses, this listing is identified as smoked.
• Anyone assuming the optional reverse light bar is included. It is mentioned as an optional enhancement, not listed package contents.

What changes from the factory assemblies

• Complete smoked-lens replacement: Updates both sides together with a matching pair, instead of changing only the bulbs in the stock housings.
• 3D blade lighting: Two rows of TIR optics illuminate the sculpted light blades for a distinctive brake and turn-signal signature.
• Integrated LED functions: SSC LEDs provide the listed lighting functions, including white reverse illumination.
• Defined operating colors: Red brake, parking, and turn-signal output; white reverse light output.
• Materials for everyday exposure: ABS plastic housings and UV-resistant polycarbonate lenses.
• Listed five-year warranty: Warranty coverage is stated in the supplied product information.

Factory LED truck? Check the adapters first

The supplied application notes state that factory LED trucks require LF728HT adapters and mark them as included. The package section also calls OEM LED adapters optional. Confirm the actual adapter contents for your order before purchase so the wiring setup matches your truck. The listed GM multi-pin OEM input does not remove the need for this check.

Use the installation guide, compare the original connectors, and verify parking lights, brake lights, both turn signals, hazards, and reverse lights before driving. Do not assume fitment based only on the Sierra HD name.

GMC taillight installation guide

Package and technical specifications

• Taillights: 2, one pair of 2015–2019 GMC Sierra HD XB LED assemblies.
• Lens appearance for this listing: smoked.
• Listing SKU: LF731.
• Input: GM multi-pin OEM.
• Housing material: ABS plastic.
• Lens material: UV-resistant polycarbonate.
• Light source: SSC LED.
• Reverse light: white.
• Brake light: red.
• Parking light: red.
• Turn signal: red.
• OEM LED adapters: described as optional in the package section; factory-LED fitment notes specify LF728HT adapters and state included. Confirm order contents.
• Optional light bar: mentioned as an available reverse-light enhancement; not listed as included.
• Listed warranty: five years.
• Standards listed in the supplied product information: DOT, SAE, FMVSS108.

Listed vehicle compatibility

• ✅GMC Sierra 2500 HD: 2015–2019, excluding dually trucks.
• ✅GMC Sierra 3500 HD: 2015–2019, excluding dually trucks.
• Factory LED trucks: require the LF728HT adapter setup; confirm inclusion before ordering.
• Listed GM replacement references: GM2800262 and GM2801262.

US-spec application: These housings were designed for and tested on US-spec vehicles. Compatibility in other countries can vary and is not guaranteed or always known. Verify model, year, non-dually configuration, original lighting type, and adapter requirements before ordering.