Description
OTR PTL1108A is a 2.5-inch round amber (yellow) LED marker/clearance lamp on a Power Products LLC platform — direct replacement for the Truck-Lite 1052A Signal-Stat and Grote G1003 Hi Count. Grommet-mount housing with a fully potted circuit board, polycarbonate lens, and a standard 2-prong pigtail connector. Meets FMVSS 108 P2 / PC requirements when mounted at a 45° angle in a PC2 bracket.
Specifications
| Manufacturer | OTR (Power Products LLC) |
|---|---|
| Part Number | PTL1108A |
| Function | Marker / Clearance Light |
| Lens Color | Amber / Yellow |
| Lens Shape | Round, 2.5″ diameter |
| Light Source | LED (4-pin square diode) |
| Voltage / Current | 12V DC, ~0.05A |
| Mounting | Grommet mount (standard 2.5″ round grommet, sold separately) |
| Connector | Standard 2-prong pigtail |
| Construction | Polycarbonate lens / housing, fully potted electronics |
| Compliance | DOT, SAE P2 / PC |
Cross References
This part replaces or is equivalent to the following part numbers:
- Truck-Lite: 1052A (Signal-Stat 4-diode amber LED, grommet/PL-10)
- Grote: G1003 (Hi Count 2.5″ amber LED, reflectorized)
Applications
Side-marker and clearance lighting on heavy-duty truck cabs, sleepers, fenders, and trailer header rails — anywhere a 2.5″ round grommet-mount amber marker is required by FMVSS 108.
For the red lens version of the same housing, see OTR’s PTL1108R.









