Red 4in LED Flange Light - 6-Diode Weathertight Plug - 44322R 818R7 STL13RFMB

In stock
SKU: 571.LD441R6
Regular price $13.78

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  • Integrated Molded Flange: Features a permanently affixed gray plastic flange that provides a clean, recessed mount while protecting the light from the harsh vibrations of long-haul trucking.
  • 6-Diode High-Output LED: Outfitted with six ultra-bright red LEDs that offer faster illumination than standard incandescent bulbs, giving following drivers more time to react and reducing rear-end collision risks.
  • Weathertight 3-Pin Connection: Designed with a 3-pin weathertight plug for a secure, moisture-resistant electrical seal, ensuring reliable performance in rain, snow, and corrosive road salt.
  • Sealed Polycarbonate Lens: The impact-resistant red polycarbonate lens and housing are sonically sealed to lock out moisture and prevent internal corrosion of the LED circuitry.
  • DOT & SAE Compliant: Fully certified to meet FMVSS 108 standards for Stop, Turn, and Tail applications, ensuring your truck or trailer remains 100% legal for interstate operations.

Enhance your fleet's visibility and road safety with this premium Red 4in LED Flange Light by FleetPro Parts & Tires. Manufactured by Automann to strict fleet standards, this 4-inch round Stop/Turn/Tail (S/T/T) lamp features a permanently molded gray plastic flange for a secure, professional-looking mount. Designed to withstand the rigors of heavy-duty hauling, its sealed polycarbonate construction protects against moisture, vibration, and road debris. We stock these heavily right here in our Hanover Park, Illinois warehouse to ensure lightning-fast shipping for fleets and owner-operators nationwide.

High-Intensity Visibility: The Red 4in LED Flange Light Advantage

This Red 4in LED Flange Light is engineered for "drop-in" reliability and long-term service. It features a high-efficiency 6-diode configuration that provides instant, brilliant illumination, helping following drivers react faster to braking and turning signals. The light comes equipped with an integrated 3-pin weathertight connector (compatible with Fit 'N Forget style harnesses), eliminating the need for separate pigtails and reducing potential failure points from exposed wiring. Meeting strict DOT and SAE requirements (P2, S2, T2), this lamp ensures your vehicle remains compliant and safe in all driving conditions.

As we continue to build the largest inventory of commercial truck parts in Illinois, we prioritize lighting solutions that offer universal interchangeability. This unit is a professional-grade replacement for industry favorites such as Truck-Lite 44322R, Peterson 818R7, and Optronics STL13RFMB. Whether you are outfitting a trailer, dry van, or vocational truck, this flange-mounted LED provides the rugged durability needed to keep your rig out of the shop and on the road.


Vehicle Fitment & Compatibility

This 4" round LED flange light features a universal design intended for the following commercial applications:

  • Make: Universal Fit (Freightliner, Kenworth, Peterbilt, Volvo, etc.)
  • Application: Stop/Turn/Tail (S/T/T) Rear Lighting
  • Mounting Style: Integrated 4-Inch Molded Flange Mount

Direct Replacement & Cross-Reference Numbers:

This LED flange light serves as a direct exact-fit replacement for the following part numbers:

  • Automann: 571.LD441R6
  • Truck-Lite: 44322R, 44326R
  • Peterson Manufacturing: 818R7, 818R-7
  • Optronics: STL13RFMB

Technical Specifications

  • Lighting Technology: 6-Diode LED
  • Lens Color: Red
  • Flange Color: Integrated Gray Plastic
  • Connection Type: 3-Pin Weathertight (Fit 'N Forget Style)
  • Voltage: 12V
  • Compliance: DOT E P2 S2 T2 / SAE Certified
  • Product Level: Fleet Standard
  • Brand: Automann (Distributed by FleetPro Parts & Tires)