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407842-001 - Tweco SP-2000 Spool Gun Nozzle Body Replacement

Packaging: pack of 1
$137.29/EA $83.89/pack of 1 only $83.89/EASave 39%

Usually ships within 3-5 business days

OVERVIEW

Keep Your SP-2000 Running Smoothly

If you are running a Tweco SP-2000 spool gun, you know it's a workhorse for aluminum jobs and mobile fabrication. But even the toughest guns need maintenance. The Tweco 407842-001 Nozzle Body is the direct replacement you need when your old one gets stripped, clogged, or worn out. Don't struggle with poor arc starts or erratic gas coverage caused by a beat-up diffuser—swap it out and get back to laying dimes.

This isn't a cheap knock-off; it's a genuine Tweco brass part. That means it threads on perfectly, holds your contact tip tight, and stands up to the heat of long welding sessions. The brass construction helps dissipate heat quickly, protecting your gun's front-end consumables. It also helps direct your shielding gas exactly where it needs to go, keeping your puddle clean and free of porosity.

Whether you are welding aluminum trailers, repairing signage, or doing custom fab work, downtime is money. Keeping a spare nozzle body in your kit ensures that a stripped thread or a melted diffuser doesn't shut down your operation. Install this nozzle body to ensure your contact tip stays centered and your gas flow remains consistent.

Why Choose Genuine Tweco Parts?

  • Perfect Fit: No cross-threading or loose tips.
  • Better Conductivity: Solid brass ensures full power transfer to the wire.
  • Reliability: Built to handle the rigors of daily industrial use.
Additional Information
Brand:Tweco
Packaging Description:1 Per Ea
Product Type:Nozzle Body
Compatible Models:SP-2000 Spool Gun
Material:Brass
Part Type:Gas Diffuser / Nozzle Body

INCLUDED

  • 1 x Nozzle Body (407842-001)

APPLICATIONS

  • Aluminum MIG welding with SP-2000 Spool Gun
  • General fabrication and repair
  • Automotive and marine welding applications
  • Sign manufacturing and repair

FAQ

This nozzle body is designed specifically for the Tweco SP-2000 Spool Gun.

Yes, this is a genuine OEM Tweco part, number 407842-001.

It is machined from high-quality brass for durability and conductivity.

Yes, the contact tip threads into this nozzle body.

Replace it if the threads are stripped, it is clogged with spatter that cannot be removed, or if it shows signs of excessive heat damage or deformation.

No, this part is specific to the SP-2000 series. Other Tweco guns typically use different diffuser systems.

This SKU is typically for the brass body itself. Check the diagram for your specific gun to see if insulators are sold separately.

Yes, a clean and undamaged nozzle body ensures proper gas diffusion, which is critical for preventing porosity.