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4 Inch Round LED Tail Light – 39 - Diode Red – Replaces Truck - lite 4050 571.LD40R39 - Automann - FLEETPRO PARTS & TIRES
4 Inch Round LED Tail Light – 39 - Diode Red – Replaces Truck - lite 4050 571.LD40R39 - Automann - FLEETPRO PARTS & TIRES
4 Inch Round LED Tail Light – 39 - Diode Red – Replaces Truck - lite 4050 571.LD40R39 - Automann - FLEETPRO PARTS & TIRES
4 Inch Round LED Tail Light – 39 - Diode Red – Replaces Truck - lite 4050 571.LD40R39 - Automann - FLEETPRO PARTS & TIRES
4 Inch Round LED Tail Light – 39 - Diode Red – Replaces Truck - lite 4050 571.LD40R39 - Automann - FLEETPRO PARTS & TIRES
4 Inch Round LED Tail Light – 39 - Diode Red – Replaces Truck - lite 4050 571.LD40R39 - Automann - FLEETPRO PARTS & TIRES
4 Inch Round LED Tail Light – 39 - Diode Red – Replaces Truck - lite 4050 571.LD40R39 - Automann - FLEETPRO PARTS & TIRES
4 Inch Round LED Tail Light – 39 - Diode Red – Replaces Truck - lite 4050 571.LD40R39 - Automann - FLEETPRO PARTS & TIRES
4 Inch Round LED Tail Light – 39 - Diode Red – Replaces Truck - lite 4050 571.LD40R39 - Automann - FLEETPRO PARTS & TIRES
4 Inch Round LED Tail Light – 39 - Diode Red – Replaces Truck - lite 4050 571.LD40R39 - Automann - FLEETPRO PARTS & TIRES
4 Inch Round LED Tail Light – 39 - Diode Red – Replaces Truck - lite 4050 571.LD40R39 - Automann - FLEETPRO PARTS & TIRES
4 Inch Round LED Tail Light – 39 - Diode Red – Replaces Truck - lite 4050 571.LD40R39 - Automann - FLEETPRO PARTS & TIRES
Automann

4 Inch Round LED Tail Light – 39-Diode Red – Replaces Truck-lite 4050

In stock
SKU: 571.LD40R39
$20.57

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Upgrade your vehicle's visibility and safety with the 4 Inch Round LED Tail Light by Automann. This high-output 12V LED lamp is engineered to provide crisp, instantaneous signaling for braking, turning, and tail-light functions. Whether you are outfitting a heavy-duty tractor or a commercial trailer, this 4 Inch Round LED Tail Light offers a modern, energy-efficient alternative to traditional incandescent lighting.

High-Intensity 39-Diode Performance: The 4 Inch Round LED Tail Light Advantage

The 4 Inch Round LED Tail Light (Automann Part # 571.LD40R39) features 39 high-lumen diodes encased in a sonically sealed polycarbonate lens. This rugged construction effectively blocks moisture and road debris, ensuring the internal electronics remain protected in even the harshest environments. Note: The integrated PL3 connector on the back plate allows for a seamless "plug-and-play" installation, reducing maintenance time for both driver and passenger side lighting panels.

As we continue to build the largest inventory of commercial truck parts in Illinois, we prioritize lighting solutions that keep your fleet DOT-compliant. This LED unit is a direct professional-grade replacement for Truck-lite 4050, Grote G4002, and Optronics STL55RB. By switching to LED technology, you eliminate the frequent maintenance associated with burnt-out bulbs and benefit from a faster "rise time," giving following drivers more time to react during braking.

Comprehensive Compatibility & Specifications

To ensure your trailer meets all safety regulations, please verify the technical details and cross-reference numbers below:

  • Direct Replacement For: Truck-lite 4050, 44030R, Grote G4002, Optronics STL55RB, Peterson 420R-3

  • Functions: Stop, Turn, and Tail Lamp (S/T/T)

  • Diode Count: 39 High-Lumen Red LEDs

  • Lens Material: Sonically Welded Polycarbonate (Waterproof)

  • Connection: Integrated PL3 (3-Pin) Connector

  • Mounting: Fits Standard 4-Inch Round Rubber Grommets

  • Compliance: Fully meets DOT, SAE, and FMVSS 108 standards

  • Position: Universal (Fits LH or RH rear positions)