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High-Performance 24-Diode LED Array: Engineered with 24 bright yellow LEDs that light up faster than standard incandescent bulbs, providing trailing and oncoming motorists more reaction time.
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Dual-Function Performance: Functions seamlessly as both a lower-intensity parking/marker running light and a high-intensity front turn indicator signal.
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Solid-State Durability: No internal bulbs or filaments to break, making this lamp impervious to the heavy shock and chassis vibrations common in vocational fleets.
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Hermetically Sealed Design: Polycarbonate lens and housing are sonically welded together, locking out moisture, dust, dirt, and corrosive road spray.
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Standard PL-3 Socket: Built with a standard 3-prong female PL-3 pigtail interface on the back for quick plug-and-play wiring upgrades.
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Fully Safety Certified: Meets or exceeds FMVSS 108, CMVSS 108, DOT, and SAE standards (marked I6, P, P2) for legal commercial highway application.
Truck-Lite 4050A Signal-Stat LED Yellow 4" Round Front/Park/Turn Signal Light (12V, 24-Diode, PL-3 Connection, Sealed Polycarbonate Lamp)
Upgrade your commercial vehicle’s forward signaling to high-efficiency solid-state technology with the Truck-Lite 4050A Signal-Stat LED Front/Park/Turn Signal Light. This standard 4-inch round, yellow (amber) LED lamp is an excellent fleet-grade choice for updating aging incandescent fixtures to long-lasting LED performance. Featuring an advanced 24-diode array, it delivers instant, crisp illumination to manage both low-intensity parking/marker lighting and high-intensity front turn indicator signaling.
Designed to withstand the rigors of heavy-duty transportation, the Truck-Lite 4050A features a robust polycarbonate lens and housing assembly that are sonically welded together to form a hermetically sealed, 100% watertight unit. Because LEDs have no delicate filaments to break, this lamp is highly resistant to severe road vibration and mechanical shocks, drastically reducing fleet maintenance downtime and replacement costs. This 12V DC lamp flush-mounts cleanly into standard 4.5-inch panel cutouts and accepts industry-standard 3-prong PL-3 pigtail connections.
Grote: 53123, 54333, G4003
Optronics: STL55AB
Peterson: 420A-LED, M420A-LED, 826A-7
Interchange Part Numbers: TL4050A, TL-4050A, SIG4050A, LIT4050A, TK4050A
Truck-Lite alternative options: 44302Y (Super 44 premium LED series version), 40202Y (Incandescent equivalent version)