Swivel Kit for Cox 439 1/2" X 3/8" Swivel

Swivel Repair Kit for 439 Series Reels, 1/2 Inch by 3/8 Inch

A dripping swivel almost never means the reel is finished. This swivel repair kit rebuilds the 439 series swivel in the 1/2 inch inlet by 3/8 inch outlet size, so a drum that still spins true can go back on the truck the same afternoon you pull it apart. Crews usually find the leak here long before anything else on the reel gives out. Rebuilding runs a small fraction of what a replacement assembly costs.

Features

• Rebuilds a 439 series swivel rather than forcing a whole assembly swap
• Cut for a 1/2 inch inlet paired with a 3/8 inch outlet
• Small enough that two or three fit in a toolbox drawer
• Bench job most techs finish inside an hour
• Puts a working reel back in rotation with no new plumbing

Specifications

Making Sure This Matches the Swivel on Your Bench

Two checks settle it. Confirm the body is a 439 series unit, because that is the pattern this kit is built around. Then measure both ports, since swivels that look identical from across the shop often carry different sizes. You want 1/2 inch going in and 3/8 inch coming out.

While the swivel is open, drag a fingernail across the shaft surface where the seals ride. Smooth means you can rebuild it and expect the repair to hold. Scored or pitted means new seals will wear out fast and you will be doing the job twice.

Common Questions

Will this stop a swivel that only drips under pressure?

Usually. A leak that shows up at working pressure and quits when you let off the trigger points straight at worn seals inside the swivel body.

Do I need special tools for the rebuild?

No. A vise with soft jaws, two wrenches and a pick for the seals will do it. Lay the parts out in the order they come off and reassembly moves quickly.

How is shipping handled?

Freight on this item is quoted per order. Add it to your cart and we will send you a rate, or call and we will price it out over the phone.

Related Parts and Reels

Need the reel itself rather than the repair? Start with our Hose Reels lineup. For seals, swivels and other wear items, the Hose Reel Parts section carries what keeps older units running.