-
Heavy-Duty Shock-Mounted Bulb: Built-in impact protection cushions the incandescent single-filament bulb against severe road vibrations, extending its service life.
-
Hermetically Sealed Assembly: Highly durable, sonically sealed polycarbonate lens and housing block out water, moisture, dirt, and corrosive road grime.
-
Universal Standard Fitment: Fits standard 4-inch round mounting setups, using standard grommets, brackets, and PL-3 pigtail connections.
-
High-Output Brightness: Delivers a powerful 32 Candlepower (CP) output for immediate, unmistakable driver awareness behind your vehicle.
-
Easy Retrofit Path: Designed as a drop-in replacement that easily upgrades to Truck-Lite LED systems (such as the Super 44 series) in the future using existing accessories.
-
DOT & Safety Compliant: Meets FMVSS 108, CMVSS 108, DOT, and SAE standards (marked I6) for rear turn signal applications on North American highways.
Truck-Lite 40201Y 40 Series Incandescent Yellow 4" Round Rear Turn Signal Light (12V, Shock-Mounted Bulb, PL-3 Connection, Sealed Lamp)
Ensure top-tier rear signaling visibility and complete DOT compliance on your commercial truck, trailer, or fleet vehicle with the Truck-Lite 40201Y 40 Series Rear Turn Signal Light. This heavy-duty, 4-inch round yellow (amber) lamp is a trusted OEM and fleet replacement built specifically for reliable turn signal illumination.
The Truck-Lite 40201Y is engineered with a heavy-duty shock-mounted bulb filament (designed at 12.8V, 2.1 Amps / 32 CP) that absorbs rugged road vibrations to prevent premature bulb failure and maximize operational life. This unit features a hermetically sealed polycarbonate lens and housing assembly that connects via a standard PL-3 pigtail socket. It is designed to fit seamlessly into standard 4-inch round mounting accessories, making it an easy drop-in upgrade or replacement.
NAPA: LIT40201Y
Other Interchanges: 55573, TL40201Y, TK40201Y
Truck-Lite alternative options: 40028Y (Kit version with grommet/plug), Super 44 LED Series (Upgrade alternative)