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20202094 - Tweco MIG Gun Trigger Switch Blade Replacement Set

Packaging: pack of 1
$35.18/EA $22.15/pack of 1 only $22.15/EASave 37%

Usually ships within 3-5 business days

OVERVIEW

Restore Your MIG Gun's Performance with Tweco Switch Blades

There is nothing more frustrating for a welder than a trigger that doesn't work when you need it to. You line up your joint, drop your helmet, squeeze the trigger, and... nothing. Or worse, the arc sputters on and off because the contact inside your handle is worn out. The Tweco 2020-2094 Switch Blades Set is the specific cure for this common headache. Instead of struggling with a faulty gun or buying an entirely new handle assembly, you can simply replace the internal contact blades and get back to welding with a tool that feels brand new.

These switch blades are the heart of your MIG gun's trigger system. When you squeeze the trigger, these metal strips touch together to complete the circuit that tells your machine to feed wire and power up. Over thousands of cycles, the metal can lose its springiness or get coated in grime, leading to poor connections. This genuine Tweco replacement set provides you with fresh, crisp contact points. The result is instant arc ignition every time you pull the trigger, giving you back the control and confidence you need for high-quality welds.

Installing the Switch Blades Set is a quick repair that can be done right at the workbench. It is designed to fit perfectly inside your Tweco MIG gun handle, meaning you won't have to fight with parts that don't align. Whether you are running a classic Tweco No. 4 or a Spray Master, keeping a set of these blades in your toolbox is a smart move. It’s a small, affordable part that prevents big interruptions in your workflow. Don't let a ten-cent failure hold up a million-dollar project—swap out those worn contacts with the Tweco 2020-2094 set and keep the sparks flying.

Additional Information
Brand:Tweco
Packaging Description:1 Per Ea
Product Type:Trigger Switch Blades
Compatible Equipment:Tweco MIG Guns
Material:Conductive Metal Alloy
Part Number:2020-2094

INCLUDED

  • 1 x Set of Switch Blades (Upper and Lower Contacts)

APPLICATIONS

  • Repairing intermittent trigger response in Tweco MIG guns
  • Routine maintenance of welding gun trigger assemblies
  • Restoring electrical contact in worn or oxidized switches
  • MRO inventory for fabrication shops using Tweco equipment

FAQ

These blades act as the electrical contact points inside the MIG gun handle. When the trigger is pulled, the blades touch to complete the circuit, signaling the welder to start.

Common signs include the welder not starting when the trigger is pulled, intermittent operation (cutting in and out), or the trigger feeling loose or lacking 'spring'.

Yes, the 2020-2094 is a genuine OEM replacement part manufactured by Tweco (ESAB).

No, it is designed specifically for Tweco-style MIG gun handles. It is not universal for other brands like Miller or Lincoln unless they use a Tweco-style handle.

No, this SKU typically includes only the metal switch blades (contacts). The plastic trigger assembly is usually sold separately if needed.

Installation is generally straightforward. You will need to open the gun handle case (usually held by screws), remove the old blades, and seat the new ones in the designated slots.

While cleaning can temporarily restore function, metal fatigue often means the blades won't hold tension. Replacement is recommended for a reliable, long-term fix.

They are made of a durable, conductive metal alloy designed to withstand repetitive mechanical flexing and electrical contact.