Skip to Main Content
Canadian
Canadian owned and operated

12301300 - Tweco 23T-37 Tapered MIG Nozzle 3/8" Bore (2-Pack)

Packaging: pack of 2
$75.78/EA $108.30/pack of 2 only $54.15/EASave 29%

Usually ships within 3-5 business days

OVERVIEW

Enhance Visibility and Access with Tapered MIG Nozzles

Upgrade your MIG gun's front-end performance with the Tweco 23T-37 Tapered Nozzle, available in a convenient pack of two. Designed for the widely used Tweco 200, 300, and 400 amp MIG guns (Series #2, #3, and #4), this nozzle is a staple for professional welders. The 23T-37 distinguishes itself with a tapered geometry that reduces the nozzle diameter at the tip. This profile significantly improves the welder's line of sight to the arc, allowing for more precise gun manipulation and better weld quality, especially in fillet welds and confined areas.

The 3/8-inch bore is optimized for standard wire diameters and typical gas flow rates, providing a stable gas shield that protects the weld from atmospheric contamination. Because it is a slip-on style nozzle, it relies on the friction fit over the gun's insulator (part #32 or #34) to stay in place. This design is superior for high-heat environments as it eliminates the risk of thread damage and allows for rapid adjustments or change-outs. If spatter builds up, the nozzle can be easily pulled off, cleaned, and re-seated in seconds.

Durability is key in welding consumables, and these nozzles are crafted from robust copper alloy to withstand the harsh thermal cycles of MIG welding. The 2-pack packaging ensures that you aren't caught off guard by a worn-out nozzle in the middle of a critical job. Keep your arc smooth and your welds clean with these essential replacement parts, designed to deliver consistent shielding gas flow and withstand the rigors of daily industrial use.

Additional Information
Brand:Tweco
Item:Nozzle
Packaging Description:pack of 2
Fits Which Model:N/A
Bore Size:3/8" (9.5mm)
Nozzle Style:Tapered
Series:23 Series
Connection Type:Slip-on
Material:Copper Alloy
Compatible Guns:Tweco #2, Tweco #3, Tweco #4

INCLUDED

  • 2 x Tweco 23T-37 Tapered MIG Nozzles (3/8" Bore)

APPLICATIONS

  • Automotive body repair and exhaust work
  • General light-to-medium fabrication
  • Structural steel welding in tight corners
  • Maintenance and repair operations (MRO)
  • Farm and agricultural equipment repair

FAQ

This nozzle is designed to fit Tweco #2, #3, and #4 series MIG guns, as well as many other Tweco-style guns that use the 23 series consumables.

The 23T-37 has a 3/8-inch (0.375 inch or 9.5mm) bore diameter.

This is a slip-on nozzle. It fits over the gas diffuser insulator (typically part number 32 or 34).

A tapered nozzle provides better visibility of the weld puddle and allows the gun to access tighter spaces and corners compared to a standard cylindrical nozzle.

This package contains 2 nozzles.

Yes, this nozzle typically requires a 32 or 34 series insulator on the gas diffuser to hold it in place securely.

It is made of a durable copper alloy designed to withstand high heat and resist spatter adhesion.

While you can physically use it, flux-cored welding (FCAW-S) often uses a thread protector instead of a nozzle. However, for gas-shielded flux core (FCAW-G), this nozzle is appropriate.