Product: Trailer Brake Controller Switch Color: Black Material: Metal and Plastic Package Quantity: 1 Quantity Sold: 1pc Part Numbers: 84109447, 23476237, 23176401, 22822677 What this part does Provides the electrical and mechanical switching needed to activate trailer brakes when the vehicle brakes are applied. Restores reliable communication between the vehicle braking system and a towed trailer, helping maintain controlled, consistent trailer braking. Key benefits Direct compatibility: Fits specified Chevy and GMC truck models for a straightforward replacement that matches the original part numbers listed above. Durable construction: Metal components for structural strength and plastic housings for corrosion resistance and electrical insulation. Clear function: Designed to reliably send brake signals to the trailer braking system for predictable braking response. Singlepackage convenience: Sold as one complete unit so you can the failed component without sourcing multiple parts. Compatibility Chevy Silverado 1500 years 2014 to 2018 Chevy Silverado 2500HD and 3500HD years 2015 to 2020 GMC Sierra 1500 years 2014 to 2018 GMC Sierra 2500HD and 3500HD years 2015 to 2020 Matches part numbers 84109447, 23476237, 23176401, 22822677 Performance and build Constructed from metal and quality plastic to withstand vibration and typical underdash or underhood environments. Black finish for a discreet, factorylike appearance. Engineered to deliver consistent switching performance for trailer brake activation under normal towing conditions. Typical applications Replacing a failed trailer brake controller switch after loss of trailer braking or inconsistent brake activation. Restoring trailer brake function before towing a boat, utility trailer, or enclosed cargo trailer for safer highway travel. Repairing a tow vehicle prior to a long trip or when preparing a truck for seasonal towing tasks. Installation notes Intended as a direct replacement for the listed vehicle models and part numbers. Use existing mounting points and electrical connectors when reinstalling. Basic hand tools and standard diagnostic checks are recommended to confirm correct operation after installation. Why choose this part Matches the original equipment fit and function for the specified Chevy and GMC truck models. Simple singleunit replacement with durable metal and plastic construction for dependable trailer brake control. includes one trailer brake controller switch, black, matching the part numbers listed above.