Partsam LED Fender & Bed Marker Lights for Silverado/Sierra Dually 1999-2013 — 4pc (2 Amber, 2 Red) T10 Plug

Partsam's 4-piece LED fender and bed side marker light set replaces worn amber and red markers on dually Silverado and Sierra 2500/3500 HD trucks for a brighter, more reliable signaling solution.

This direct-fit replacement kit provides two amber front markers and two red rear markers designed for dual-wheel (dually) GM trucks from roughly 1999–2013. Each lamp uses three high-output flux LEDs for improved visibility compared with incandescent bulbs, and the kit comes with T10/168/194-style plugs and double-sided tape for a straightforward swap. If your truck’s socket or polarity differs, the LEDs are polarity-sensitive but can be flipped or hardwired by cutting the supplied plug for custom wiring.

Will these markers fit my Silverado or Sierra dually?

They are engineered to match the fender/bed marker openings used on many 2500 and 3500 HD dual-wheel GM trucks from model years around 1999 to 2013. Fitment is most direct for stated years and part reference, but minor trimming or connector changes may be required on some vehicles.

• Direct compatibility with many 2001–2007 Sierra 3500 and 2001–2007 Silverado 3500 models.
• Common fit for 2008–2012 Sierra 3500HD and 2007–2012 Silverado 3500HD with matching lens styles.
• Dimension: approx 81.0 x 38.5 x 19.5 mm—check against your existing marker.
• If sockets differ, cut off the plug and hardwire to your existing harness.

How do I install these LED side markers and handle polarity?

Installation is simple for most owners: remove the old marker, plug in the supplied T10 connector or hardwire after trimming the plug, and secure the new lamp with the provided double-sided tape. LEDs are polarity-sensitive; if a lamp doesn’t light, rotate it 180 degrees or reverse the wiring leads.

• Includes T10/168/194 plugs for plug-and-play where compatible.
• Double-sided tape is provided for additional mounting security.
• If the bulb fails to light, flip the LED to correct polarity.
• For non-matching sockets, cut the connectors and splice into your wiring harness.

How bright and durable are the Partsam LED markers?

Each marker houses three flux-type LEDs that give a sharper, whiter-leaning light for amber and a strong solid red for rear installation, improving day and night visibility over older incandescent units. The LEDs run cooler and have longer expected lifespans, reducing maintenance frequency.

• 3 high-output flux LEDs per unit for clear signaling.
• Lower heat output compared with filament bulbs for longer life.
• Sealed housing suitable for exterior fender and bed mounting.
• Color-coded: two amber units for the front, two red for the rear.

Who this is for: This kit is ideal for owners of dually Silverado/Sierra 2500/3500 HD trucks who want a brighter, lower-maintenance replacement for faded or burnt-out fender/bed side markers. It also suits DIYers comfortable with basic vehicle wiring who need a universal-fit solution for other trucks after small modifications. Verify your marker opening size and existing connector style before purchase to ensure a smooth replacement.