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Direct OEM Navistar Fit: Exact replacement for Navistar/International OEM part numbers 2002875C91 and 3566936C91.
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High-Impact Nylon Construction: Tough black nylon housing and lever resist cracking, impact damage, and daily wear over a long service life.
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Sealed Dust Boot Protection: Integrated rubber boot seals the lever entry to prevent dirt, dust, and moisture from contaminating internal electrical contacts.
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Self-Canceling Mechanism: Features built-in mechanical self-canceling functionality for convenient daily operation.
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16-Lamp Flashing Capacity: Drives up to 16 lamps in hazard mode (8 per side during turn signaling) for commercial trailer and vocational lighting setups.
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Smart Brake Override: Integrated logic automatically overrides hazard warning flashing when the brake pedal is depressed for enhanced highway safety.
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Plug-and-Play Setup: 13-wire harness features pre-terminated OEM-style Packard connectors (12015345, 12047781, 12015987, 2973778) for fast retrofit installation.
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Surpasses SAE Standards: Fully certified to exceed SAE J589 (Turn Signal Switches) and SAE J910 (Hazard Warning Switches) requirements.
Truck-Lite 963Y100 Navistar Turn Signal Switch (Heavy-Duty Nylon Housing, Replaces 2002875C91 & 3566936C91)
Restore responsive, reliable directional signaling and hazard light operation to your International/Navistar commercial truck with the Truck-Lite 963Y100 OEM Replacement Turn Signal Switch Assembly. Engineered specifically as a direct drop-in replacement for Navistar part numbers 2002875C91 and 3566936C91, 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 963Y100 features an improved high-impact, lightweight black nylon housing and control handle designed to withstand mechanical stress and prevent lever breakage. It includes a protective sealed rubber boot to eliminate dust and debris intrusion into internal switch contacts. Capable of flashing up to 16 lamps simultaneously in hazard mode (8 lamps per side during turn signal operation), this self-canceling switch includes a smart brake override feature that automatically cancels hazard flashing upon brake pedal activation. Complete with pre-terminated Packard plug connectors, this 13-wire assembly provides a seamless plug-and-play installation.