Description
When you’re dealing with air lines on modern tractors and implements, sometimes you need to connect different sized fittings or adapt tubing to threaded ports. This handy stem adapter lets you connect 1/4 inch pneumatic tubing directly to 1/8 inch NPTF threaded fittings—perfect for air brake systems, pneumatic controls, or implement air circuits that need a solid connection.
What You’re Getting
- Direct connection from 1/4 inch tubing to 1/8 inch NPTF threads without extra couplers
- John Guest quality construction that handles farm environment vibration and temperature swings
- Push-to-connect design on the tube side makes installation quick and secure
- Sold in packs of 10 so you’ll have spares when you need them
Built for Real Farm Work
These adapters work great on air systems found on tractors with cab suspension, pneumatic seed meters, air brake trailers, and implements with pneumatic controls. Whether you’re running air lines to a planter monitor or connecting pneumatic cylinders on tillage equipment, this adapter bridges the gap between tube and threaded connections reliably.
Made to Last
John Guest has been making pneumatic fittings for decades, and their stuff holds up to the demands of agricultural work. The fitting body won’t crack from UV exposure or temperature changes, and the internal seal keeps air from leaking even when your equipment is bouncing across rough fields.
Good to Know
Installation is straightforward—just push the tubing into the fitting until it bottoms out, then thread the NPTF end into your port. Use thread sealant on the threads for a proper seal. If you need to remove the tubing later, push in the release collar while pulling the tube out.
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