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8-2035 - Tweco MIG Gun Conductor Tube O-Ring

Packaging: pack of 5
$11.25/EA $35.60/pack of 5 only $7.12/EASave 37%

Usually ships within 3-5 business days

OVERVIEW

Reliable Sealing for Tweco MIG Guns

The Tweco 8-2035 O-Ring is an essential maintenance item for welders using Tweco MIG torches. Designed to provide a secure, gas-tight seal, this O-ring helps prevent the common issue of shielding gas loss. When your gas coverage is compromised, your weld pool is exposed to contaminants, leading to visible defects and structural weaknesses. This replacement part is manufactured to Tweco's precise specifications, ensuring a perfect fit that aftermarket generic seals often fail to provide.

Installation is straightforward and requires no special tools. This O-ring is typically found sealing the conductor tube to the gun body or within the connection block. Because these areas are subjected to thermal cycling—heating up during welding and cooling down afterwards—the seals can eventually lose their pliability. A fresh 8-2035 O-Ring restores the necessary compression to hold the gas line secure, ensuring that 100% of your shielding gas reaches the nozzle where it is needed most.

Why Choose Genuine Tweco Parts?

  • Fitment: Guaranteed to fit compatible Tweco gun models without forcing or stretching.
  • Material Quality: Made from durable synthetic rubber compounds designed to withstand the welding shop environment.
  • Performance: Eliminates "mystery" porosity caused by invisible leaks inside the gun handle.

For professional welders, equipment reliability is non-negotiable. A leaky gun wastes expensive gas and frustrates the operator. By proactively replacing your O-rings during scheduled maintenance, you extend the life of your torch and improve the consistency of your work. Add the Tweco 8-2035 to your spare parts kit today and ensure you are never caught off guard by a worn-out seal.

Additional Information
Brand:Tweco
Packaging Description:1 Per Ea
Product Type:O-Ring
Material:Rubber
Compatibility:Tweco MIG Guns

INCLUDED

  • (1) 8-2035 O-Ring

APPLICATIONS

  • Sealing conductor tubes in Tweco MIG guns
  • Preventing shielding gas leaks
  • Routine MIG gun maintenance
  • Repairing damaged or worn gun connections

FAQ

It creates a gas-tight seal within the MIG gun, typically at the conductor tube connection, to prevent shielding gas from leaking before it reaches the nozzle.

It should be inspected whenever the gun is disassembled for maintenance. Replace it immediately if it appears cracked, flattened, or dried out.

No, this is a specific part designed for Tweco brand MIG guns. You should check your gun's parts breakdown to confirm the part number 8-2035.

It is made of a durable synthetic rubber material designed to withstand the heat and conditions typical of welding environments.

Yes. If the O-ring fails, air can be sucked into the gas stream (venturi effect) or gas can leak out, leading to poor coverage and porosity.

A very light film of O-ring lubricant or silicone grease can help the O-ring seat properly and prevent tearing during installation, but it is not strictly required.

It is most commonly found on the end of the conductor tube (gooseneck) where it inserts into the gun handle or adapter block.

Yes, this is a genuine Tweco (ESAB) replacement part.