RUPSE Fuel Sender Unit Boat Fuel Tank Sending Unit Fuel Water Level Sensor Stainless Steel Fuel Sender and Fuel Gauge for Boat Car Truck RV (4"(100mm))

Works great and easy install on 2010 DS Club car golf cart. The 11” one fits tank perfectly.Easiest way to cut your hole out without draining fuel from tank is a razor knife.

Fit perfectly in my boats fuel tank, works great, easy to install and use

This is a great kit to add a real fuel gauge to your fuel tank. For me it was a huge upgrade for my lawn tractor which only had a rather worthless "sight window" which is just about impossible to use unless you had bright light on the back of the fuel tank and the fuel was within the visible window. The sender unit appears to be solid and of good quality with a sturdy mounting flange, I ordered the 4 inch version in a kit with the gauge which was the best option for my application. The gauge meter unit itself has bold graphics for easy no nonsense readability, the multi color backlight options are a great way to customize to suit your application and do a great job at night. I wired the backlight to the tractor headlight circuit so it comes on with the headlights - a nice touch but not necessary, you can of course wire it up to stay on all the time if you prefer. My kit did not come with the connector sealing plug as shown though. For those reviewers of this kit that complain of the gauge showing Full all the time - this fuel gauge meter is programmable for different types of senders, it might be worth making sure it is configured for the right sender. For me the default settings were correct. Overall, I very much like this kit, it is a little pricey, but if it lasts the life of my lawn tractor, it will be worth it, we'll see. Please not that I took extra care to prepare the nylon fuel tank surface to seal perfectly against the sender unit with the limited torque available from screws in nylon (I purchased special deep thread screws and did not use the machine screws provided), typically such nylon tanks are not perfectly flat nor is the surface texture conducive to a good seal even with the good quality gasket provided. This is less of an issue with metal fuel tanks. Think Safety. If in doubt, use a threaded split ring backer inside the tank. UPDATE: Nov 2025: This kit is still going strong and a valued upgrade to my tractor. I have noticed however that the Gauge Dial Glass does fog up with condensation so this is definitely NOT waterproof and would be a disaster on marine installations - so make sure you receive and use the connector seal, as my kit did not come with one and it is clearly a critical item.

I have an old Dodge Ramcharger, and the replacement sending unit cost over $150 and had to be special ordered, and was not guaranteed to fit, so for less than $35 I got a fuel gauge that I think looks better and works better

Good quality materials. Stainless steel sending unit means no corrosion or rust! Gasket was thick and well cut. The gage does read in increments, so it’s not a smooth steady needle as fuel level drops. It’s F, 3/4, 1/2, 1/4, E. So it’s not going to show you 3/8 of a tank. But it’s perfect for what it is. An easy to install and use basic fuel gage with multiple colors for your gage face. I’m very happy with it.

Doesn't work had a professional shop that's been in business doe over 25 years ,they had to drop tank 2 times ,and finally they realized that the product is defective. Even gauge is all off .have brand new tank .no support and no response at all

Works great

I installed the transducer/sending unit on my boat gas tank, which was made in 1972 and the five bolt pattern does match up! Took a bit of rotating as the bolt pattern is not symmetric. I bought the 6.8” transducer as my tank is 7.5” tall. The wiring instructions/schematic was detailed enough to easily wire the unit. I’ve got a newer motor and ignition set up so I was able to wire directly to the ignition stud of the newer tachometer. The included gas gauge fit perfect in my old gas gauge cut out. I turned on the ignition and the gauge booted up with a needle sweep and then slowly climbed up to the actual fuel depth in my tank, which I feel is accurate. The back light is nice and bright and the variety of backlighting colors is more of a novelty and I think my kids will get a kick out of it! Happy so far with the set up, but we’ll see how solid this set up is when I get it out on the big water of Lake Michigan. Will update this review if necessary. Very good product so far at that price point.

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