IMAGE COMING SOON
Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
This genuine OEM Carrier contactor (HN51KC024) is the heavy-duty switch that delivers power to your compressor and condenser fan on the Carrier CH13NA04900GABBA, built to the exact pole configuration and 24V coil voltage of the original. Contactors endure relentless high-current switching, so their contacts gradually pit and burn until they stick closed and run the unit nonstop or fail open and prevent any start. This factory part restores clean, reliable switching and protects your compressor from damaging voltage drop and arcing. It's one of the most approachable HVAC repairs: label the wires, transfer them to the matching terminals, and remount, usually 20 to 30 minutes with a screwdriver and nut driver. Always disconnect power at the unit first, since line voltage is present regardless of the thermostat. The genuine Carrier contactor ensures the correct amperage rating, coil voltage, and mounting footprint for a clean, adapter-free install. In stock and ships same-day on orders before 3PM CST. OEM quality from NationalHVACParts.com.
This part is compatible with Carrier model CH13NA04900GABBA.
Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.