Got a Freightliner truck with a wonky turn signal or multifunction switch? This AUTOKAY replacement is built to get you back on the road. It's a direct fit for a bunch of models: Freightliner Century Class (1996-2010), Columbia (2001-2015), and MT35/MT45/MT55 (2004-2014). It replaces part numbers 978-5211A, 0644025000, 57746002S20022, and 999496 – but always double-check your old part before buying! Installation is pretty straightforward; it's an 8-pin connector, so it's basically plug-and-play. No need to mess with the vehicle's wiring. It's made from high-quality materials to match the original equipment specs, so it should be reliable and last. A quick heads-up: the fixing bolt on this one is at the top of the steering column, not on the side. The package includes just the one switch. A solid, affordable fix for a common wear item on these heavy-duty trucks.