CK2389-4 - Replacement Gun Adapter Kit for NKC 7900060040

Precision Replacement for NKC Welding Systems

The Systematics CK2389-4 Nozzle Kit is a specialized gun adapter designed to serve as a direct replacement for the NKC OEM part number 7900060040. In the realm of industrial MIG welding, maintaining the integrity of the gun-to-feeder or gun-to-nozzle connection is critical for consistent electrical conductivity and shielding gas coverage. This adapter kit is engineered to meet or exceed the specifications of the original equipment, providing a seamless fit for specific NKC welding gun configurations.

Manufactured from high-grade copper and brass alloys, the CK2389-4 ensures optimal current transfer, reducing resistance and heat buildup at the connection point. This is essential for preventing premature failure of the gun assembly during high-amperage welding cycles. The precision machining of the threads and mating surfaces guarantees a tight seal, which is vital for maintaining the pressure of the shielding gas and preventing atmospheric contamination of the weld pool.

This kit is an ideal solution for maintenance, repair, and operations (MRO) professionals looking to source reliable replacement parts for legacy or current NKC systems without the lead times or costs often associated with direct OEM sourcing. Whether used in automated robotic cells or manual welding stations, the CK2389-4 restores the functionality of the welding torch, ensuring that production lines remain active and weld quality remains high.

Key Technical Specifications:

• Compatibility: Designed specifically for systems requiring NKC #7900060040.


• Material: Durable conductive alloys resistant to thermal shock.


• Function: Adapts the nozzle or gun assembly for proper mechanical and electrical connection.