This left rear lamp assembly is the rear exterior lighting component for FAW heavy trucks. It integrates multiple light sources for brake light, turn signal, reverse light and marker light, delivering clear warning and indication signals to vehicles behind. The lamp housing adopts high-strength anti-aging material with excellent sealing and waterproof performance, adapting to all-weather and long-haul heavy-load working conditions. Precision mold manufacturing ensures the lamp perfectly matches the original mounting holes and wiring connectors. Each lamp undergoes lighting performance, waterproof and aging tests before delivery. It is an essential replacement spare part for truck rear lighting system maintenance.