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Uniquely Designed Shock-Mount: Internal bulb shock-mounting shields the dual-filament incandescent bulb from severe road vibration, extending runtime and reducing fleet maintenance.
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Permanently Affixed Black Flange: The built-in black ABS plastic flange is molded directly to the lamp housing, providing an all-in-one surface-mounting solution that guards against theft.
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Premium Super 40 Engineering: Upgraded commercial-grade design backed by an extended 3-year manufacturer warranty for maximum fleet reliability.
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Hermetically Sealed Design: A robust polycarbonate lens and housing are sonically welded together, locking out moisture, dust, dirt, and corrosive road spray.
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Three Rear Functions in One: Streamlines vehicle aesthetics by consolidating tail light, brake light, and turn indicator operations into a single round unit.
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Standard PL-3 Socket: Features 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 S2, I6, P2, T) for legal commercial highway application.
Truck-Lite 40259R Super 40 Incandescent Red 4" Round Stop/Turn/Tail Light (12V, Black ABS Flange Mount, PL-3 Connection, Sealed Lamp)
Secure your commercial vehicle's rear signaling with the premium, theft-resistant Truck-Lite 40259R Super 40 Series Stop/Turn/Tail Light. This 4-inch round, red incandescent lamp is engineered specifically for heavy-duty fleet trucks, vocational vehicles, and trailers. It features Truck-Lite’s legendary uniquely designed shock-mount technology, which isolates and cushions the dual-filament bulb from harsh road vibrations and chassis shocks to significantly extend its operational life.
Instead of relying on an external rubber push-in grommet, the Truck-Lite 40259R is built with a permanently integrated, high-impact black ABS plastic flange. This heavy-duty structural design allows you to flush-mount the light assembly directly onto your vehicle's panel cutout via a secure surface-screw application. This eliminates the need for separate rubber components and helps prevent theft or accidental blowouts on the highway. Sonically sealed and 100% watertight, this premium 12V lamp utilizes an industry-standard PL-3 connection and is backed by an extended 3-year manufacturer warranty.
Interchange Part Numbers: TL40259R, TL-40259R, TRU40259R, LIT40259R, TK40259R
Truck-Lite alternative options: 40258R (Red gray flange version), 40242R (Standard grommet-mount Super 40 version), 40233R (Standard 40 series black flange version)