Description
When your spray gun starts acting up—uneven spray patterns, leaks around the trigger, or that annoying drip that won’t stop—chances are it’s time for a new core assembly. This essential component sits at the heart of your TeeJet spray gun, controlling the flow and shutoff every time you pull the trigger. Getting it back to working like new means less wasted chemical and more time getting work done.
What You’re Getting
- Precision-machined brass construction that handles farm chemicals and daily use
- Direct replacement for worn or damaged original core assemblies
- Smooth trigger action and reliable shutoff every time
- Compatible with standard TeeJet spray gun systems
Built for Real Farm Work
This core assembly fits TeeJet spray guns used across the farm—from spot spraying weeds around fence lines to applying herbicides in row crops. Whether you’re running a tank sprayer, ATV unit, or handheld system, this is the same quality component TeeJet has been putting in their guns for years.
Made to Last
Brass is the right material for this job. It won’t corrode from farm chemicals like steel, and it holds its shape better than plastic alternatives. The precision machining ensures a tight seal that keeps chemicals where they belong while standing up to the pressure and temperature swings you deal with in the field.
Installation Notes
Replacing the core assembly requires basic disassembly of your spray gun. Most folks can handle it with common tools, though having a parts diagram handy makes the job go smoother. Clean all the parts while you’ve got it apart—debris in the gun body can cause premature wear on your new core.





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