R&F Auto Side Marker Lights for 2020–2026 Sierra 2500/3500HD Amber — DOT‑Certified, IP67 Waterproof

High‑output amber LED side marker lights by R&F Auto engineered as direct replacements for 2020–2026 GMC Sierra 2500HD/3500HD side markers.

These R&F Auto side marker lamps swap in for the OEM units on Sierra 2500 and 3500HD models from 2020 through 2026, delivering brighter, more consistent amber illumination while maintaining street legality. Built with rugged polycarbonate housing, DOT and SAE certification, and IP67 waterproofing, the kit replaces factory part numbers 84806032, 84185031, and GM2550207. The plug‑and‑play design keeps factory connectors and mounting points intact for a fast, no‑mod installation.

Will these fit my 2022 Sierra 3500HD without wiring changes?

Yes — the R&F Auto markers are designed as direct replacements that use the factory connector and mounting locations. No splicing, relays, or additional adapters are required when swapping out the OEM lamps.

• Compatible with 2020–2026 Sierra 2500HD and 3500HD models
• Direct fit for OEM part numbers 84806032, 84185031, GM2550207
• Plug‑and‑play electrical connectors; no re‑routing needed
• Mounts to factory holes and brackets for a simple swap

How durable are these markers in harsh weather and off‑road conditions?

Durability is a core design point: the lamps use impact‑resistant polycarbonate lenses and are sealed to an IP67 rating, protecting internal LEDs from dust and temporary immersion. That makes them suitable for wet roads, splashes, and dusty trails while preserving consistent output over time.

• IP67 waterproof and dustproof protection
• Shock‑resistant housing to withstand vibration and impacts
• Anti‑scratch polycarbonate lens for long‑term clarity
• Sealed to prevent moisture and grit entry into the LED module

What kind of light quality and legal compliance do these lamps provide?

R&F Auto uses high‑power LED chips and an optical design optimized for even, continuous amber output without grainy hotspots. The lamps are DOT and SAE certified, ensuring they meet road‑use regulations and provide consistent visibility to other drivers.

• DOT‑certified and SAE‑certified for street legality
• Advanced optical layout for smooth, uniform amber glow
• High‑power LEDs for increased daytime and nighttime visibility
• Designed to avoid distracting glare while remaining conspicuous

How easy is installation and what comes in the package?

Installation is straightforward: unplug the old side markers, remove, then plug in and seat the new R&F Auto lamps. The kit contains both front and rear amber markers and includes a one‑year warranty for added peace of mind.

• Includes 2 front and 2 rear amber LED side marker lamps
• Simple remove‑and‑replace process; no tools beyond basic hand tools
• Ships ready to install with factory‑compatible connectors
• Backed by a 1‑year manufacturer warranty

Who is this for: these amber LED side marker lights are aimed at Sierra 2500HD and 3500HD owners (model years 2020–2026) who want a bright, street‑legal upgrade from OEM markers. They suit truck drivers who need reliable visibility in daily driving, fleet operators looking for durable aftermarket replacements, and enthusiasts wanting a cleaner, more modern amber signal without rewiring or body modification. If you need straightforward fitment, certified road compliance, and rugged weather protection, this R&F Auto kit is a practical, plug‑and‑play choice.