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R94R - Parker Style R94R Replacement MIG Gun Trigger Switch

Packaging: 1 of each
$16.20/ea $13.50/1 of each only $13.50/eaSave 17%

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OVERVIEW

Get Your Torch Firing Again

There is nothing more annoying than a MIG gun trigger that cuts out right in the middle of a bead. If you are running a Parker 400 Amp MIG gun and noticing that you have to squeeze the trigger extra hard, or wiggle it just right to get the wire to feed, it is time for a replacement. The Parker R94R Trigger Switch is the direct replacement part you need to fix that intermittent connection and get back to smooth, consistent welding. Don't let a cheap plastic switch hold up your project; swap it out with this high-quality replacement designed specifically for your torch.

Welding guns take a beating. They get dropped, dragged, and exposed to intense heat and dust. The trigger switch is the one moving part you use constantly, so it's natural for it to wear out over time. The R94R is built tough to handle the daily grind of a welding shop. It offers a crisp, positive 'click' so you know exactly when you're engaged, giving you better control over your tack welds and long runs alike. It fits perfectly into the handle of Parker 400A series guns, meaning you won't have to modify the casing or struggle with loose fitment.

Installation is simple:

  • Unplug the welder and disconnect the gun.
  • Open up the handle case (usually just a few screws).
  • Disconnect the two spade terminals from the old switch.
  • Plug the wires into the new R94R switch.
  • Seat the switch in the housing and screw the handle back together.

In less than ten minutes, you can restore your gun to like-new functionality. Keeping a spare R94R in your toolbox is a smart move for any professional welder using Parker equipment. It ensures that a simple mechanical failure won't stop you from meeting a deadline. Trust in genuine Parker parts to keep your arc steady and your work flowing.

Additional Information
Brand:Parker
Item:Trigger Switch
Amperage:400 A
Packaging Description:1 per each
Product Type:Replacement Trigger Switch
Compatible Brand/Model:Parker 400 Amp Series MIG Guns
Part Number:R94R
Switch Type:Momentary Contact

INCLUDED

  • 1 x R94R Trigger Switch Assembly

APPLICATIONS

  • Repairing Parker 400 Amp MIG welding guns
  • Restoring intermittent wire feed issues
  • General industrial welding maintenance
  • Fabrication shops using Parker torch systems

FAQ

The R94R is designed primarily for Parker brand 400 Amp MIG guns. It may fit other Parker series torches, but it is best to verify your specific torch model's parts breakdown before ordering.

Symptoms of a bad switch include intermittent wire feeding, the need to press very hard to initiate the arc, or the gun failing to activate at all despite the machine being powered on.

Typically, no. Most MIG gun trigger switches, including the R94R, use spade terminal connectors that slide on and off, making replacement quick and tool-free regarding soldering.

While some trigger switches look similar, dimensions vary slightly between brands like Tweco, Binzel, and Parker. It is recommended to use the R94R only for Parker-compatible housings to ensure proper fit and function.

This is a momentary switch, meaning it is only active while you are holding it down, which is the standard safety operation for manual MIG welding guns.

No, this SKU is for the trigger switch mechanism only. The plastic handle housing and screws are sold separately.

While the switch is for a 400A gun, the switch itself carries a low control voltage (usually 24V) to signal the wire feeder. The '400 amp' designation refers to the gun it fits, not the current passing through the trigger.