FIMCO 5151088 High Flo 12Volt Demand Diaphragm Pump (Upgrade), 4.5GPM, 60PSI, Can Use with Roundup

I bought this pump to replace one that froze over the winter, and I’m beyond impressed with how well it works! The internally fan-cooled motor is a powerhouse, delivering consistent performance even under heavy load. I’ve been using it for demanding tasks, and it hasn’t skipped a beat, proving its reliability and durability. The chemically resistant elastomers really boost the flow rate, making this pump noticeably more efficient than my old one. The built-in check valves are a great feature, maintaining steady pressure and preventing backflow, which gives me peace of mind during operation. It’s also self-priming, and the fact that it can run dry without damage is a huge plus for reliability, especially in unpredictable conditions. This pump is a direct replacement for several part numbers (5281372, 5275088, 5277982, 5275704, 5275498, 5274983, 5275017), and it fit my system perfectly with no installation hassles. The performance has been flawless, and it’s clear this pump is built to last. My only minor wish is that it came with more detailed installation instructions for first-timers, but since I was replacing an existing pump, it wasn’t an issue for me. If you need a robust, high-performing replacement pump, this one is an absolute winner. It’s been a game-changer for my setup!

Awesome pump with outstanding run time. Smooth steady pressure with low power consumption. Cool running. Quieter than other pumps I've used!

Functions as expected

This pump quit building pressure after 2 or 3 uses, I contacted Fimco and a replacement was promptly shipped. The same thing happened on the second pump, called Dan at customer service and he asked if I used a surfactant, I was. He said this pump was not designed for surfactants to be used, however many products recommend it, when i inquired on ask Alexa it said it was OK. It's Not. Dan recommended the PRO series models that cost more. He is sending the part to repair the second pump. Good customer service.

Quality Fimco product. Great output/pressure. Will run my 14’ sprayer bar with 7 heads with ease!

This product came very poorly packaged. The pump box had been torn open and parts were scattered in large packing bag that it came in. The pump did not work and I am returning for a new one.

My pumps usually last A couple of seasons, I keep my old pumps for parts and sometimes I can limp them along a little longer. I think like everything else they get built cheaper overtime but overall, I’m pretty happy.

Very satisfied, I’ve bought 6 of these pumps for use at home and our farm. We’re spraying water & liquid fertilizers with all pumps except 1, which is reserved for Roundup. We occasionally have had problems with an internal O ring and the pressure cut off switch. We immediately called the factory number on the pump and they promptly dispatched replacement parts at no charge. You will be satisfied with this pump and backup from the US manufacturer.

Perfect replacement or upgrade