R&F Auto Side Marker Lights for 2020–2026 Sierra 2500/3500HD — Amber LED Direct-Fit, Plug-and-Play

R&F Auto amber LED side marker lights are direct-fit, DOT- and SAE-certified replacements for the 2020–2026 GMC Sierra 2500HD and 3500HD side markers, delivering brighter, more even illumination and weatherproof reliability.

These LED side marker lamps are designed to replace OEM part numbers 84806032, 84185031, and GM2550207 on compatible Sierra HD trucks. Built from anti-scratch polycarbonate with high-power LED chips and advanced optics, they produce a continuous, grain-free amber glow that increases visibility while matching the truck's styling. The kit includes two front and two rear amber markers and is plug-and-play for straightforward installation.

How do these side marker lights improve night and daytime visibility?

Advanced LED chips and R&F optical engineering create a balanced, continuous amber output that reads clearly at various angles and distances. The brighter, more uniform light helps other road users notice your truck sooner, without the uneven spotting common with older bulbs.

• High-power LEDs for stronger luminous output
• Optical design for consistent, non-graining light
• Amber color tuned to DOT/SAE visibility standards
• Works for both front and rear marker locations in the kit

Are these side marker lights easy to install on my Sierra HD?

Yes. The R&F Auto markers are direct replacement units that plug into the factory harness—no cutting, splicing, or modifications required. Replacing the old assemblies is a simple swap: unplug the stock marker, remove it, then insert the new LED unit and reconnect.

• Direct-fit for 2020–2026 Sierra 2500HD / 3500HD
• Compatible with OEM part numbers listed for quick cross-reference
• Plug-and-play wiring keeps factory electrical behavior intact
• Includes front and rear markers for a complete refresh

Will these lights hold up to harsh weather and road conditions?

R&F Auto constructed the markers with IP67-rated sealing and durable PC plastic to resist dust, rain, and road debris. The housings are shockproof and built to withstand everyday exposure, making them a long-lasting choice for work trucks or frequently driven vehicles.

• IP67 waterproof rating for immersion and dust protection
• Anti-scratch polycarbonate lens retains clarity over time
• Shockproof construction reduces risk of damage from vibration
• DOT and SAE certifications confirm street-legal durability

What comes in the package and is there a warranty?

The kit contains everything required to update both sides of the vehicle: two front and two rear amber LED side marker lamps. R&F Auto backs the product with a 1-year warranty, giving short-term coverage for manufacturing defects.

• 2 front amber LED side markers and 2 rear amber LED side markers
• Direct-replacement hardware—no extra parts needed
• 1-year limited warranty from R&F Auto
• DOT-Certified and SAE-Certified for legal road use

Who is this for? These R&F Auto amber LED side markers are ideal for Sierra 2500HD and 3500HD owners (model years 2020–2026) who want a straightforward upgrade to brighter, more uniform side illumination that withstands wet and dusty conditions. They suit truck drivers who prefer plug-and-play vehicle upgrades—commercial fleets, work-truck owners, and daily drivers seeking enhanced exterior lighting performance without rewiring or complex installation.