GENMAX 12V DC Electric Fuel Pump with Auto Start-Stop Sensor, auto Liquid Transfer Pump for E15, E85, Gas, Diesel & More，with Overfill Protection, Includes Adapters, Long Hose (GMEFP-PLUS)

Chinese crap. The pump I received was defective. I called the "customer support" number and talked to a young person who had very little idea how the product worked. He started looking for online videos to answer my question until I told him he wouldn't find a video concerning a missing pin in the fuel port. I asked for a technician and he said wasn't one wasn't available at present. I asked when one would be available and got a run around for a response. We'll, guess what?-- there is no technician. This pump is a brilliant idea, but this Chinese company just won't follow through with consistent quality control and real customer support. So, if you buy one of these you might get a good one... or, you might not. It's a crap shoot.

Works fantastic, had an issue with the sight glass had broken. Customer service was excellent and recieved a replacement fairly quickly.

Initial reaction - This pump seems to work well on my Predator 3500 inverter generator using the G2 1/4 adapter (option B in the description photos). A few caveats. The hose that's included has the Yamaha type connectors (shown in the picture), NOT the Johnson/Evinrude type. Also the pump wouldn't work when plugged into the 12V port on the generator. It did light up, but wouldn't pump fuel. This is apparently because the so-called 12V port is unregulated and actually was putting out 19+ volts. So I had to add a port to the generator that is wired directly to the generator's battery terminals. This measured at 13.4V and allowed the pump to work correctly. I will try to update this review after I've used it more.

It would be great except I had to send it back due to the fact it only has two adapter caps and does not fit my application.

This product and the seller are absolute crap! The pump quit working in little over a month and Amazon says that there is no warranty on this product. How is this possible?

Went to an event, got this setup, working great! While the rv was cooling, I jumped on the sxs and checked out the area, come back about an hour later, fuel all over my bran new generator and a giant puddle of gasoline all around the gen and my rv... it blew the sight glass off and just kept on pumping

I added this to my Predator 3500 using the 12v plug on the generator and a https://tinyurl.com/amazon-vr-24-12. It works amazingly. Pumps gas from a marine tank to the generator when the float senses that it is low!

order pump came and it was doa called amazon they return it and got new pump work for 5 minutes went to recheck and the pump stop working contacted amazon support and they keep asking same question over and over DO NOT WASTE YOUR TIME ON THIS PRODUCT IT DONT WORK