Heavy Duty 1MR574 Turn Signal Control Switch OEM Replacement with Plug-and-Play Installation for Mack Trucks

This 1MR574 turn signal switch is a direct OEM replacement designed specifically for Mack heavy-duty trucks. Crafted with high-quality premium internal components and durable housing, it ensures excellent wear resistance, stable conductivity, and long-lasting service life. Perfectly replaces original damaged or worn-out turn signal switches, supporting smooth and flexible control of turn signals, headlights, and related steering column electrical functions.

Features precise mounting dimensions for easy plug-and-play installation without modification. Strictly follows original factory production standards to guarantee reliable performance under harsh driving conditions, effectively restoring your truck's electrical control system to normal working condition and ensuring driving safety and stability.