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Dual-Bulb Safety Backup: Two-bulb incandescent architecture provides fail-safe illumination if one internal filament fails mid-route.
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Integrated Reflex Reflector: Built-in reflectorized lens surface maximizes passive visibility and ensures FMVSS 'A' class compliance.
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Sonically Welded Polycarbonate: High-impact polycarbonate housing and lens are fused together to permanently seal out water, dust, and road grime.
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Vibration-Proof Male Pins: Heavy-duty male pin terminal configuration ensures secure, continuous electrical contact despite severe structural vibration.
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Streamlined 2-Screw Mount: Designed for standard flush or bracket-surface installation utilizing a 2-screw setup (2.02" H x 5.88" W dimensions).
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Multi-Compliance Certified: Meets strict DOT safety requirements with A, P2, and PC ratings, making it suitable for clearance, marker, and 45-degree angle combination applications (when paired with additional reflectors).
Truck-Lite 29203R 21 Series Red Rectangular 2-Bulb Marker Clearance Light | Reflectorized Lens, Male Pin, 12V
Upgrade your fleet's rear-profile passive safety and ensure absolute DOT compliance with the Truck-Lite 29203R 21 Series Red Rectangular Incandescent Marker Clearance Light. Widely trusted as an industry benchmark for commercial semi-trucks, dry van trailers, flatbeds, and vocational vehicles, this 2" x 6" class marker lamp provides heavy-duty dependability. Built with dual-bulb redundancy, an integrated reflex reflector, and a sonically sealed housing, this individual red replacement lamp is engineered to handle the everyday punishments of long-haul transport.
Reflectorized Optics & Dual-Bulb Safety Redundancy
Eliminate the risk of immediate roadside citations or dangerous highway blind spots due to a single burnt filament. The Truck-Lite 29203R is intelligently engineered with an advanced 2-bulb configuration. If one filament breaks due to extreme chassis vibration, the secondary bulb remains actively illuminated—keeping your vehicle safe, visible, and legal until your next scheduled maintenance stop. Furthermore, the lens features integrated reflex optics (reflectorized), which reflect surrounding headlights even when the vehicle is parked and completely powered off, providing a critical secondary layer of passive safety.
Sonically Sealed Defense & Secure Male Pin Connection
To defend against heavy road spray, dust, and corrosive winter chemicals, the high-impact polycarbonate lens and housing are sonically sealed together to create an absolute one-piece barrier against moisture intrusion, preventing internal lens fogging. This 21 Series lamp features a heavy-duty 2-prong male pin connector design (compatible with industry-standard PL-10 right-angle plug harnesses). The integrated male pins lock securely into place to resist backing out under continuous road shock. Designed for a standard 2-screw surface mount configuration, it seamlessly retrofits onto existing vehicle brackets or body panels with minimum effort.
Truck-Lite: 29203R, 29203R3 (Bulk Pack), TL29203R, TRL29203R, TKL29203R, TL-29203R
Grote Equivalent: 46802, 46862, 46872
OTR: PT2101R
UPC: 0735111136897