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4 Inch Round Stop Tail Light โ€“ Red Incandescent โ€“ Replaces Truck - lite 40202R 571.LG40R - Automann - FLEETPRO PARTS & TIRES
4 Inch Round Stop Tail Light โ€“ Red Incandescent โ€“ Replaces Truck - lite 40202R 571.LG40R - Automann - FLEETPRO PARTS & TIRES
4 Inch Round Stop Tail Light โ€“ Red Incandescent โ€“ Replaces Truck - lite 40202R 571.LG40R - Automann - FLEETPRO PARTS & TIRES
4 Inch Round Stop Tail Light โ€“ Red Incandescent โ€“ Replaces Truck - lite 40202R 571.LG40R - Automann - FLEETPRO PARTS & TIRES
4 Inch Round Stop Tail Light โ€“ Red Incandescent โ€“ Replaces Truck - lite 40202R 571.LG40R - Automann - FLEETPRO PARTS & TIRES
4 Inch Round Stop Tail Light โ€“ Red Incandescent โ€“ Replaces Truck - lite 40202R 571.LG40R - Automann - FLEETPRO PARTS & TIRES
4 Inch Round Stop Tail Light โ€“ Red Incandescent โ€“ Replaces Truck - lite 40202R 571.LG40R - Automann - FLEETPRO PARTS & TIRES
4 Inch Round Stop Tail Light โ€“ Red Incandescent โ€“ Replaces Truck - lite 40202R 571.LG40R - Automann - FLEETPRO PARTS & TIRES
4 Inch Round Stop Tail Light โ€“ Red Incandescent โ€“ Replaces Truck - lite 40202R 571.LG40R - Automann - FLEETPRO PARTS & TIRES
4 Inch Round Stop Tail Light โ€“ Red Incandescent โ€“ Replaces Truck - lite 40202R 571.LG40R - Automann - FLEETPRO PARTS & TIRES
4 Inch Round Stop Tail Light โ€“ Red Incandescent โ€“ Replaces Truck - lite 40202R 571.LG40R - Automann - FLEETPRO PARTS & TIRES
4 Inch Round Stop Tail Light โ€“ Red Incandescent โ€“ Replaces Truck - lite 40202R 571.LG40R - Automann - FLEETPRO PARTS & TIRES
4 Inch Round Stop Tail Light โ€“ Red Incandescent โ€“ Replaces Truck - lite 40202R 571.LG40R - Automann - FLEETPRO PARTS & TIRES
4 Inch Round Stop Tail Light โ€“ Red Incandescent โ€“ Replaces Truck - lite 40202R 571.LG40R - Automann - FLEETPRO PARTS & TIRES
4 Inch Round Stop Tail Light โ€“ Red Incandescent โ€“ Replaces Truck - lite 40202R 571.LG40R - Automann - FLEETPRO PARTS & TIRES
4 Inch Round Stop Tail Light โ€“ Red Incandescent โ€“ Replaces Truck - lite 40202R 571.LG40R - Automann - FLEETPRO PARTS & TIRES
Automann

4 Inch Round Stop Tail Light โ€“ Red Incandescent โ€“ Replaces Truck-lite 40202R

In stock
SKU: 571.LG40R
$2.98
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Part numbers

OEM & interchange numbers

13 cross-refs
Truck-Lite 40202R Truck-Lite 40202R3 Truck-Lite 40202RP Truck-Lite 40242R Truck-Lite 40242R3 Truck-Lite 40242RP Truck-Lite 40282R Truck-Lite 40282R3 Truck-Lite 40282RP Peterson 426R Grote 52772 Grote 50942 Optronics ST45RB
Direct 1-to-1 replacement for every number above. Tap any number to copy.
Overview

Ensure your trailer or vocational truck remains visible and DOT-compliant with the 4 Inch Round Stop Tail Light by Automann. This industry-standard S/T/T (Stop/Turn/Tail) lamp is engineered for rugged reliability and universal application. Whether you are outfitting the driver side or the passenger side, this lamp provides high-intensity signaling for braking, turning, and nighttime running, keeping you safe and legal on the road.

Sealed Performance: The 4 Inch Round Stop Tail Light Advantage

The 4 Inch Round Stop Tail Light (Automann Part # 571.LG40R) features a sonically sealed polycarbonate lens that effectively prevents moisture, dust, and road salt from entering the housing. Inside, a heavy-duty incandescent bulb is designed to withstand the high-vibration environment of long-haul trucking. Note: The back of the unit includes an integrated PL3 connector for a simple "plug-and-play" installation, making it one of the easiest components to service in the field.

As we continue to build the largest inventory of commercial truck parts in Illinois, we prioritize lighting solutions that meet strict safety regulations. This 4 Inch Round Stop Tail Light is a direct professional-grade replacement for Truck-lite 40202R, Peterson 426R, and Grote 52772. Since both the driver and passenger side lights are often exposed to the same environmental wear, we recommend replacing them in pairs to ensure consistent brightness and signaling across your rear impact guard or light box.

Comprehensive Compatibility & Specifications

To ensure your trailer meets FMVSS requirements, please verify the technical details and cross-reference numbers below:

  • Direct Replacement For: Truck-lite 40202R, Peterson 426R, Grote 52772, 50942

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

  • Lens Color: Red (Polycarbonate)

  • Light Source: Heavy-Duty Incandescent Bulb

  • Connection: Integrated PL3 (3-Pin) Connector

  • Mounting: Fits Standard 4-Inch Rubber Grommets

  • Compliance: Meets DOT, SAE, and FMVSS 108 Standards

  • Voltage: 12.8V DC
Specifications
Function
Stop/Turn/Tail (S/T/T)
Size
4 in Round
Light Source
Incandescent
Lens
Red Polycarbonate
Connector
PL-3 (3-Pin)
Mounting
4.5 in Grommet
Voltage
12.8V DC
Compliance
DOT, SAE S2/I6/P2/T, FMVSS 108
Weight
0.25 lbs
Questions
What part numbers does it replace?
Yes. It is a direct replacement that interchanges with Truck-Lite 40202R, Truck-Lite 40202R3, Truck-Lite 40202RP, Truck-Lite 40242R, Truck-Lite 40242R3, Truck-Lite 40242RP, Truck-Lite 40282R, Truck-Lite 40282R3, Truck-Lite 40282RP, Peterson 426R, Grote 52772, Grote 50942, Optronics ST45RB.
How fast does it ship?
In-stock orders placed before 12 PM Central on business days ship the same day from our Hanover Park, IL warehouse, and typically arrive in 2 to 5 business days anywhere in the USA.
What's your return policy?
Unused items in original packaging can be returned within 30 days, backed by our 30-day money-back guarantee. If we ship the wrong part, we cover the return label and send the correct one.