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Direct OEM Navistar Fit: Exact replacement for Navistar/International OEM part numbers 2042613C91 and 3566942C91.
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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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Weatherproof Boot Protection: Features an integrated protective boot that seals internal switch contacts against dust, humidity, and road grime.
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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 demands.
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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 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 964Y100 Navistar Turn Signal Switch (Heavy-Duty Nylon Housing, Replaces 2042613C91 & 3566942C91)
Restore smooth, reliable directional signaling and hazard light operation to your International/Navistar commercial truck, medium-duty vehicle, or bus fleet with the Truck-Lite 964Y100 OEM Replacement Turn Signal Switch Assembly. Engineered specifically as a direct drop-in replacement for Navistar part numbers 2042613C91 and 3566942C91, this heavy-duty column switch surpasses SAE J589 and SAE J910 commercial vehicle standards for turn signal and hazard functions.
Built for rigorous daily fleet demands, the 964Y100 features an improved high-impact, lightweight black nylon housing and control handle designed to eliminate premature component wear and arm breakage. It includes an integrated weatherproof rubber boot to protect internal electrical contacts from dust, dirt, and moisture intrusion. Capable of flashing up to 18 lamps simultaneously in hazard mode (9 lamps per side during turn signal operation), this switch features a smart brake override that automatically cancels hazard flashing upon brake pedal activation. Complete with Flash-to-Pass and Lift-to-Dim options, this pre-wired harness assembly connects directly to factory Packard plug connectors for a seamless plug-and-play retrofit.