Turn Signal Switch For 1967-1972 Chevrolet C10-C30, K10-K30 & GMC C15-C35, K15-K35, OE SWA41605

A Turn Signal Switch for the C10, C20, and K-Series Trucks

This is a turn signal switch and blinker harness built for the 1967-1972 Chevrolet C10, C20, C30, K10, K20, and K30, along with the corresponding GMC C15/C1500, C25/C2500, C35/C3500, K15/K1500, K25/K2500, and K35/K3500 pickups, cross-referenced to part number SWA41605. If your turn signals aren't self-canceling after a turn, the lever feels loose or sticky, or your hazards and turn signals aren't working reliably, a worn switch inside the steering column is a common cause on trucks this age.

Why This Switch Wears Out on a Truck This Old

The turn signal switch on these classic Chevrolet and GMC trucks sits inside the steering column and combines several functions into one assembly, including the turn signal lever, the self-canceling cam mechanism, and often the hazard switch, all of which see constant mechanical use every time the truck turns a corner. After decades of use, the internal contacts wear, the canceling cam can crack or wear smooth, and the wiring harness that runs from the switch down through the column can develop breaks or corrosion at the connectors, all of which lead to signals that stick on, don't self-cancel, or stop working altogether.

Key Features

• Cross-referenced to part number SWA41605
• Direct replacement for the correct model years and configurations
• Backed by a lifetime manufacturer warranty
• Complete switch and harness assembly

Specifications

• Part number: SWA41605
• Type: Turn signal switch
• Fitment type: Direct replacement
• Warranty: Lifetime
• Condition: New

Compatibility

Fits the 1967-1972 Chevrolet C10, C20, C30, K10, and K20 (1968-1972 for K30), and the corresponding 1967-1972 GMC C15/C1500, C25/C2500, C35/C3500, K15/K1500, and K25/K2500 (1968-1972 for K35/K3500). Because steering column parts changed across GM's model years even within a single generation, it's worth confirming your specific truck's exact year and column configuration before ordering.

Signs Your Turn Signal Switch Needs Replacing

A failing turn signal switch on these trucks typically shows up as signals that don't cancel automatically after completing a turn, a turn signal lever that feels loose, sticky, or doesn't stay in position, hazard lights that don't activate consistently, or turn signals that work intermittently depending on how the wheel is positioned. Because the switch also often ties into the horn and headlight dimmer functions on these trucks, a failing switch can sometimes affect more than just the signals themselves.

Why Replace the Complete Switch Assembly

Because the turn signal switch combines several mechanical and electrical functions into a single assembly inside the steering column, attempting to repair individual contacts or wires inside the switch itself is rarely practical or reliable long-term. Replacing the complete switch and harness assembly addresses the wear across the whole unit at once, which is the standard fix for a switch this old rather than trying to patch a single failed component inside it.

Installation Notes

Installing this switch means disconnecting the battery, removing the steering wheel and column covers to access the switch, disconnecting the old switch and harness, and installing the new assembly before reassembling the column. Because working inside a steering column on a truck this age can involve brittle plastic components that have become more fragile over the decades, working carefully and avoiding excess force when removing the old switch helps prevent breaking parts that are original to the truck.

Ordering Information

This turn signal switch is in stock and ships ready to install. Our Shipping Information page covers current timelines, and our Warranty and Returns pages explain what to do if anything isn't right on arrival. Not sure this matches your specific truck's column? Our Request a Part page is the fastest way to confirm before you order.

Related Parts

This turn signal switch is listed in our Chevrolet and GMC collections, along with our Electrical Parts collection, where you'll find other parts for these classic trucks.