When your sprayer pump starts leaking or losing pressure, it’s usually the seals telling you they’ve seen enough chemical exposure and heat cycles. This silicon carbide O-ring seal kit gives you what you need to get that pump sealed up tight and back to work without breaking the bank on a complete rebuild.
What You’re Getting
- High-grade silicon carbide seals that resist chemical damage and wear better than standard rubber
- Complete O-ring set saves you from hunting down individual seals
- Precision-fit rings maintain proper seal compression and prevent blowouts
- Kit format means you have spare seals on hand when the next repair comes up
Built for Real Farm Work
This kit services Hypro roller pumps commonly found on field sprayers, from the smaller 4-roller units on ATV sprayers up to the big 8-roller pumps that push serious volume. Whether you’re running herbicide, fungicide, or liquid fertilizer, these seals handle the chemical exposure that comes with modern farming operations.
Made to Last
Silicon carbide construction stands up to the harsh chemicals and temperature swings that eat up standard seals. The material won’t swell, crack, or deteriorate when exposed to today’s crop protection products, giving you longer service intervals and fewer surprise breakdowns during critical spray windows.
Good to Know
This kit replaces the older 3430-0475 seal set, so it’ll work if that’s what you’ve been using. When replacing seals, clean all surfaces thoroughly and check for scoring or wear that could cause the new seals to fail early. A light coating of compatible lubricant helps with installation and prevents pinching during assembly.








