
Marker lamps that light up the vehicle's outline the way the FMVSS spec drew it.
Marker lamps are the DOT-mandated perimeter of the vehicle at night. Ours match housing color, mounting position, and lens output to the OE part.
Lighting · Perimeter Signaling · Ships from Warren, MI
Aftermarket notice: This is a quality aftermarket replacement part — not an OEM component sold by the vehicle manufacturer.
Backed by the Power Auto Parts fit & finish warranty.
Marker lamp coverage
We stock side markers, fender markers, and quarter-panel markers in LED and incandescent variants. Amber, red, and clear lens options are stocked by application.
When markers get replaced
Cracked lenses from debris
The most common failure mode for exposed side markers.
Water intrusion condensation
Failed seals allow moisture that clears and returns.
LED module failure
LED markers eventually fail their driver circuits.
Marker lamp failure signs
Perimeter safety demands attention:
- Cracked or missing lens
- Fogged or condensed interior surface
- Dark or flickering LED segments
- Loose fit at the mount hole
Why marker lamps come off
- 1Impact damage from debris or side swipes
- 2Water intrusion behind failed seals
- 3LED driver circuit failure
- 4Cosmetic upgrade to smoked or clear lenses
Marker lamp construction
Acrylic lens
UV-stabilized clear or tinted acrylic.
PC housing
Polycarbonate rear housing.
LED emitter
For LED variants, integrated emitter and driver.
Ordering marker lamps
Match lens color to DOT requirements
Front amber, rear red — do not mix.
Order both sides for full refresh
One fresh lens next to a hazed old lens is visually inconsistent.
Verify socket type
LED-compatible sockets vary from incandescent.
Marker lamp FAQs
- Are smoked markers DOT-legal?
- Smoked variants that meet DOT light output are legal; darker aftermarket tints may not be.
- Do lamps include sockets?
- Sockets are typically included with the housing for direct-fit installations.
- Can I replace incandescent markers with LED?
- Yes in most cases; some vehicles require a load resistor to prevent hyper-flash.
Parts that often ship together.
Keep the vehicle's outline lit — DOT-clean.
VIN and desired variant — we'll route the correct markers on the next dispatch.
