Description

Truck‑Light 9520 is not an actual light or bulb — it’s a mounting gasket used with certain truck lights.
What it is:
Part: Truck‑Lite / Signal‑Stat 9520
Type: Round foam sealing gasket
Function: Seals the light housing to the vehicle body (keeps water, dust, vibration out)
Where it’s used:
Fits 7″ round truck lamps like:
Signal‑Stat 6503 / 6506 / 9032x series
Common on:
Semi trucks
buses
trailers
emergency vehicles
Key details:
Size:7″ round gasket
Material: White closed‑cell foam
Mounting: 4-bolt pattern (6.25″ bolt circle)
Role: Prevents moisture intrusion and protects the light assembly