Description
When your D252 diaphragm pump starts acting up—losing pressure, creating pulsing flow, or leaking fluid—it’s usually the o-rings causing trouble. These small rubber seals take a beating from chemicals, heat, and the constant flexing that comes with pump operation. Rather than replacing the whole pump, this repair kit gets you back to reliable operation at a fraction of the cost.
What You’re Getting
- Complete set of o-rings specifically sized for the D252 diaphragm pump
- Chemical-resistant materials that stand up to fertilizers, herbicides, and other ag chemicals
- High-quality seals that maintain proper pressure and prevent costly fluid loss
- Direct replacement parts—no modifications or guesswork needed
Built for Real Farm Work
This repair kit works with AR Pumps diaphragm systems commonly found on sprayers, liquid fertilizer applicators, and chemical injection equipment. Whether you’re running a boom sprayer, nurse tank, or custom applicator, these pumps are workhorses that need reliable sealing to do their job right. The D252 is built for medium-pressure applications where consistent flow matters.
Made to Last
Farm chemicals and temperature swings are tough on rubber seals, so these o-rings are made from materials that won’t break down or harden over time. They’re designed to handle the pressures and chemical exposure that come with agricultural spraying and liquid handling systems.
Installation Notes
The key to success is cleanliness—any contamination ruins new seals immediately. Make sure to clean all surfaces thoroughly and lubricate the new o-rings with a compatible lubricant before installation. Having the pump apart is also a good time to inspect the diaphragm and other wear components.
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