When your backpack sprayer isn’t holding pressure like it used to or you’re pumping twice as much to get half the spray, that little pressure cylinder inside the pump is probably worn out. This hardworking part is what builds and maintains the pressure that makes your Solo sprayer worth carrying around the farm.
What You’re Getting
- Direct replacement cylinder that restores your sprayer’s pressure-building power
- Built to handle the constant cycling and chemical exposure of farm spraying
- Precision-fit design that seals properly and maintains consistent pressure
- Durable construction that stands up to herbicides, pesticides, and other chemicals
Built for Real Farm Work
This pressure cylinder is designed specifically for Solo’s 425 and 475 backpack sprayers—the workhorses you see on farms everywhere for spot spraying weeds, treating fence rows, and applying chemicals where you can’t get with bigger equipment. Whether you’re spraying around buildings or walking through pastures, these sprayers handle the everyday chemical applications that keep operations running smoothly.
Made to Last
The cylinder is built with materials that resist chemical corrosion and maintain their seal even after thousands of pump strokes. Solo uses chemically resistant Viton seals throughout their sprayers, and this replacement cylinder maintains that same quality standard to keep your sprayer working reliably season after season.
Good to Know
Replacing the pressure cylinder involves disassembling the pump housing, so if you’re not comfortable with small mechanical work, it’s worth having your local small engine shop handle the job. Make sure to clean out any debris from the pump housing while you’ve got it apart, and consider replacing the other seals if they look worn.
