The MK Products Spool Gun Adapter for Miller (005-0261) is a wiring adapter that allows MK Products spool guns — including the Prince XL and Cobra series — to connect to Miller welders that use a non-standard or WC-24-style gun control interface. If you own a Miller welder and want to run an MK Products spool gun, this adapter bridges the connector gap without rewiring your machine.
| Model | Spool Gun Adapter — Miller |
|---|---|
| Part Number | 005-0261 |
| Compatibility (Welder Side) | Miller welders with WC-24-style spool gun control connector |
| Compatibility (Gun Side) | MK Products spool guns (Prince XL, Cobra series, and others with MK connector) |
| Connector Type | Adapter — bridges Miller welder connector to MK Products gun connector |
| Vendor | MK Products |
| Type | Spool gun adapter cable |
- Adding MK Products spool gun capability to Miller welders: The 005-0261 is the connection solution for shops that prefer MK Products spool guns — known for their durability and US manufacture — on a Miller power source.
- Aluminum wire welding on Miller machines with WC-24 interface: Some Miller welders use a proprietary control connector for spool gun trigger and voltage sense signals. This adapter translates those signals so MK spool guns function correctly.
- Mixed-brand shops: Fabrication shops running Miller welders but standardizing on MK Products guns for spool gun work benefit from a single adapter rather than replacing their entire gun fleet.
- Replacement or spare adapter: Any shop already using an MK Products spool gun on a Miller machine should keep a spare 005-0261 on hand — a failed adapter is a quick way to take a spool gun station offline.
The MK Products 005-0261 is designed to interface MK Products spool guns with Miller welders that use a WC-24-style control connector for spool gun trigger and control signal. Not all Miller welders use this connector type — verify your specific Miller model before ordering.
On the gun side, the 005-0261 connects to MK Products spool guns including the Prince XL family and Cobra series. If you are using a different spool gun brand, this adapter is not appropriate.
MK Products also manufactures adapters for other welder brands — including the 005-0689 for Thermal Arc Fabricator 250 machines. Browse all spool gun accessories and adapters in our Spool Guns collection.
WeldingMart is an authorized MK Products dealer, stocking the full line of MK spool gun adapters including the 005-0261. MK Products manufactures their spool gun accessories in the United States and is recognized across the professional welding industry for quality and durability. Our team can help you confirm that the 005-0261 is the correct adapter for your specific Miller model and MK Products gun — contact us before you order to avoid a costly return.