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Direct OEM Navistar Fit: Exact replacement for Navistar/International OEM part numbers 2042615C91 and 3566944C91.
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High-Impact Nylon Construction: Durable black nylon housing and lever resist cracking, impact damage, and mechanical fatigue over long operational life.
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18-Lamp Flashing Capacity: Drives up to 18 lamps in hazard mode (9 per side during turn signaling) for heavy-duty multi-trailer and vocational lighting applications.
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Smart Brake Override: Integrated logic automatically overrides hazard function lights when the brake pedal is depressed for enhanced road safety.
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Advanced Column Controls: Equipped with Flash-to-Pass and Lift-to-Dim features for comprehensive vehicle control.
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Plug-and-Play Installation: Includes a 22-wire harness with pre-terminated Packard connectors (12015345, 2973779, 12015344, 12015987, 12047781) for fast setup.
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Surpasses SAE Standards: Meets and exceeds SAE J589 (Turn Signal Switches) and SAE J910 (Hazard Warning Switches) requirements.
Truck-Lite 961Y100 Navistar Turn Signal Switch (Heavy-Duty Nylon Housing, Replaces 2042615C91 & 3566944C91)
Restore smooth, reliable directional signaling and hazard light operation to your International/Navistar commercial truck with the Truck-Lite 961Y100 OEM Replacement Turn Signal Switch Assembly. Engineered specifically as a direct drop-in replacement for Navistar part numbers 2042615C91 and 3566944C91, this heavy-duty column switch surpasses SAE J589 and SAE J910 standards for commercial turn signal and hazard warning functions.
Built for rigorous fleet demands, the 961Y100 features an improved high-impact, lightweight black nylon housing and control handle designed to eliminate premature component wear and arm breakage. It is capable of flashing up to 18 lamps simultaneously in hazard mode (9 lamps per side during turn signal operation) and includes a smart brake override function that automatically cancels hazard flashing on brake pedal activation. Complete with integrated Flash-to-Pass and Lift-to-Dim options, this 22-wire harness assembly connects directly to factory Packard plug connectors for a seamless plug-and-play retrofit.