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Premium Super 40 Series Engineering: Upgraded commercial-grade design backed by an extended 3-year limited manufacturer warranty for maximum fleet reliability.
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Vibration-Dampening Shock-Mount: Internal bulb shock-mounting cushions the single dual-filament incandescent bulb from severe road vibration, lowering maintenance costs and fleet downtime.
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Hermetically Sealed Design: Polycarbonate lens and housing are sonically welded together, locking out moisture, dust, dirt, and corrosive road grime.
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Dual-Function Performance: Functions seamlessly as both a lower-intensity parking/marker light and a high-intensity front turn signal.
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8 Sq. Inch Illuminating Lens Area: Provides a wide, high-visibility signaling area to meet stop/turn regulations for vehicles under 80 inches wide.
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Standard PL-3 Connection: Built with a standard 3-prong female PL-3 pigtail interface on the back for plug-and-play wiring (compatible with Truck-Lite 94993 or similar 3-wire harnesses).
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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 40242Y Super 40 Incandescent Yellow 4" Round Front/Park/Turn Signal Light (12V, Shock-Mounted Bulb, PL-3 Connection, Sealed Lamp)
Equip your commercial vehicle's front-end with the premium, high-durability Truck-Lite 40242Y Super 40 Series Front/Park/Turn Signal Light. This standard 4-inch round, yellow (amber) incandescent lamp is engineered specifically for heavy-duty fleet trucks, vocational vehicles, and trailers. It delivers reliable, dual-filament illumination to handle both parking/running and high-intensity front turn indicator signaling.
A step up from standard lighting, the Truck-Lite 40242Y belongs to the premium Super 40 Series, featuring an advanced, uniquely designed internal shock-mount system. This technology isolates and cushions the single heavy-duty bulb filament from severe road vibrations and chassis shocks, significantly extending the life of the lamp and preventing premature burnouts. Sonically sealed in a high-impact polycarbonate lens and housing assembly, this 12V DC lamp flush-mounts cleanly into standard 4.5-inch panel cutouts and accepts industry-standard PL-3 pigtail connections.
Grote: 52773, 52953
Peterson: 426A
Other Interchanges: 40242Y, TL40242Y, TK40242Y
NAPA: LIT 40242Y
Truck-Lite alternative options: 40202Y (Standard 40 series version), 40282Y (Economy 40 series version), Super 44 LED Series (Upgrade alternative path)