Description
When your sprayer pump starts losing pressure or you notice liquid getting into places it shouldn’t be, worn diaphragms and gaskets are usually the culprits. These flexible parts do all the work of moving chemicals through your system, but constant flexing and exposure to harsh farm chemicals eventually takes its toll. This repair kit gets your Hypro D1554 pump back to working like new without the expense of a complete replacement.
What You’re Getting
- Four replacement diaphragms that handle the pumping action and resist chemical damage
- Eight gaskets that seal critical connections and prevent leaks
- Complete kit covers all the wear items that typically fail first
- Quality construction that stands up to agricultural chemicals and field conditions
- Direct fit components designed specifically for your D1554 pump
Built for Spray Applications
The Hypro D1554 is a reliable workhorse in agricultural spraying operations, from applying herbicides and pesticides to liquid fertilizer applications. Whether you’re running a pull-behind sprayer for row crops or a three-point sprayer for pasture work, this pump sees duty with some pretty aggressive chemicals. The diaphragms and gaskets in this kit are engineered to resist the corrosive effects of modern agricultural chemicals while maintaining the precise seal needed for consistent spray patterns.
Made to Last
These aren’t generic parts adapted to fit—they’re manufactured to Hypro’s specifications using materials designed for chemical resistance and durability. The diaphragms maintain their flexibility through thousands of cycles, while the gaskets provide reliable sealing even when exposed to temperature extremes and chemical exposure that would destroy standard rubber components.
Installation Notes
This is a straightforward repair if you’re comfortable with basic pump work. Take pictures before disassembly to remember how everything goes back together, and have a clean workspace ready since you’ll be working with precision components. Replace all the diaphragms and gaskets at once—mixing old and new parts often leads to uneven performance and premature failure of the new components.






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