Spindle & Press

Century Female Welding Jack Set: A Straightforward Quick-Disconnect Upgrade for Vintage Welders

If you're restoring a legacy Century or Lincoln welder, this NOS female welding jack set offers a simple quick-disconnect interface for 3/8-inch male brass plugs at a modest price.

Last updated Aug 17, 2026

When an older arc, stick, or MIG welder needs a new quick-disconnect fitting, the search can feel like a scavenger hunt. You need a part that matches the original interface, fits the plug you already have, and doesn't require a full rewire or adapter pile. The Century Female Welding Jack Set (STOCK# 40230, PART# 239-013-908) is aimed squarely at that job: a New Old Stock quick-disconnect set designed for 3/8-inch male brass plugs, commonly used on vintage Century and some Lincoln Electric welders.

Quick verdict

If your welder uses 3/8-inch male brass plugs and you want a drop-in-style female jack, this set gives you a clean path forward. At USD 15.00, it's a low-cost way to replace a worn or missing jack without chasing down a whole new torch assembly. Just keep in mind that this is a specific vintage-oriented part, not a universal modern adapter.

Who it suits

This is for someone maintaining or restoring a legacy Century or Lincoln Electric welder that originally came with this style of quick-disconnect. It's also a reasonable pick if you're building a custom cable setup around 3/8-inch male brass plugs and need a matching female end. Because it's New Old Stock, it suits buyers who prefer an era-correct component rather than a new-production substitute.

What stands out from the listed details

The set is made in the United States and comes as one unit. The description emphasizes that it's designed specifically for 3/8-inch male brass plugs, which is the key compatibility detail. The listing also calls out that the interface is a standard quick-disconnect type used on vintage or legacy Century (and some Lincoln Electric) Arc, Stick, and MIG welders. For someone who already knows their welder uses that plug size, this takes the guesswork out of fitting.

The New Old Stock status is worth noting: you're getting a part that's been sitting in inventory rather than a used pull, which can be reassuring when you're after a clean component for a restoration.

Meaningful trade-offs

Because this is a legacy-format part, it's not a universal solution. If your welder uses a different plug size or a proprietary connection, this won't be the right fit. The listing shows a stock image, so you can't eyeball the exact physical condition of the unit you receive, though NOS generally implies unused condition. Also, the set includes a single unit; if you're replacing jacks on multiple machines or need a spare, you'll need to order more than one.

Product note

#### Century Female Welding Jack Set STOCK# 40230 PART# 239-013-908 NOS

Century Female Welding Jack Set STOCK# 40230 PART# 239-013-908 NOS

This NOS set is built around a simple job: connecting a female jack to a 3/8-inch male brass plug. It's designed for the quick-disconnect standard found on many older Century and some Lincoln Electric welders. Priced at USD 15.00, it's a straightforward, low-cost way to keep a vintage machine running with the original-style connection. The main limitation is the narrow compatibility window, so be sure your welder's plug matches before ordering.

Bottom line

If you already know your welder uses 3/8-inch male brass plugs, this Century female welding jack set is a sensible, affordable pickup. It offers the simplicity of a legacy-style quick-disconnect without forcing you to adapt to a modern connector. At USD 15.00, it's a small investment that can get an older welder back to work.

Products in this article
Century Female Welding Jack Set STOCK# 40230 PART# 239-013-908 NOSUSD 15.00View on eBay
Century Female Welding Jack Set STOCK# 40230 PART# 239-013-908 NOSUSD 15.00View on eBay

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