Description

When you’re plumbing hydraulic systems on your tractor or implement, finding the right adapter to connect different thread types can make the difference between getting the job done and spending another hour driving to town. This straight adapter lets you connect 7/8-14 ORB fittings to 3/8-18 NPTF ports without hunting for multiple fittings or dealing with leaky connections. Whether you’re setting up remote hydraulics, adding a hydraulic motor, or connecting gauge lines, this adapter gives you a clean, secure connection that won’t let you down.

What You’re Getting

Straight-through design maintains clean hydraulic flow without restriction
5,000 PSI operating pressure rating handles high-pressure hydraulic systems
1-inch hex for easy installation with standard wrenches
Male ORB to Female NPTF threads accommodate common hydraulic fittings
AgSmart quality construction built for farm and commercial use

Built for Real Farm Work

This adapter bridges the gap between ORB (O-Ring Boss) and NPTF (National Pipe Taper Fuel) connections commonly found on tractors, combines, balers, and hydraulic implements. The 7/8-14 ORB side connects to many hydraulic pumps, valves, and cylinders, while the 3/8-18 NPTF side fits standard hydraulic gauges, temperature sensors, and smaller hydraulic lines typically used for pilot controls and auxiliary circuits.

Made to Last

Farm hydraulics see everything from sub-zero winter startups to scorching summer heat, not to mention vibration, dirt, and constant pressure cycling. This adapter is machined from quality steel and built to handle the demanding conditions of agricultural hydraulic systems. The precision threads ensure proper sealing and long service life even under high pressure and temperature extremes.

Good to Know

Always use proper thread sealant on the NPTF threads – that’s the tapered side that seals on the threads themselves. The ORB side seals with an O-ring, so keep that surface clean and inspect the O-ring before installation. If you’re working with high-pressure systems, double-check your pressure ratings throughout the entire circuit to avoid dangerous failures.