20402282 - Tweco 174EX-1G Gas Pin O-Ring (5-Pack)

Keep Your Shielding Gas Where It Belongs

Nothing ruins a good bead faster than a gas leak. If you are hearing a hiss from your feeder connection or seeing unexplained porosity in your welds, a dried-out or cracked O-ring might be the culprit. The Tweco 174EX-1G O-Ring (2040-2282) is the genuine replacement part you need to seal up your Tweco MIG gun and get back to laying down smooth, clean welds. These small rubber seals play a huge role in your setup, ensuring that your expensive argon or CO2 mix actually makes it to the nozzle rather than leaking out at the feeder.

This convenient 5-pack is a must-have for any welder's toolbox. O-rings are wear items; they get pinched, dry out, and degrade over time. Having a fresh pack on hand means you aren't stuck waiting for parts when a seal fails in the middle of a job. These are designed specifically for Tweco connectors, ensuring a perfect fit that generic hardware store O-rings just can't match. They slide on easily and provide an immediate, airtight seal.

Don't let a fifty-cent part cost you hours of rework. Make checking your O-rings part of your regular liner change or torch maintenance routine. If an O-ring looks flat, cracked, or nicked, swap it out with a fresh 174EX-1G. With five in a pack, you'll have plenty of spares to keep your machine running airtight for the long haul. Trust genuine Tweco parts to keep your torch performing like new.