KUS USA SSS Fuel & Water Level Sensor

Simple, reliable, easy installation. Comes with gasket and new screws, but you might have to re-use your original screws depending on the thread pitch of your tank's holes. No big deal. These a far more reliable and accurate than the old float on a swing arm style senders. Just remove your old sender and tape measure the depth of your tank and subtract one inch for sender tube length, and order the correct length here on Amazon. You allow one inch clearance for tank expansion or change in shape between full and empty, and you'll have a little reserve fuel even when the gauge reads empty.

Used this to replace the sending unit on my G3 Golden Eagle. It was a perfect replacement for the old one and worked as expected. Quality and Craftsmanship are excellent as well. Very pleased.

After the Capacitance senders in both diesel tanks malfunctioned this was recommended by mechanic and the only 21 in. one with high Amazon ratings Works great in fwd tank but unfortunately the float diameter to large for the aft tanks small diameter sender tube or I would order a 2nd one.

tried lots of other methods of measuring water usage - flow meter etc, but this physical measurement is the way to go!

I replaced the OEM's arm-type fuel sender in my Hydra-sports "Vector", due to its intermittent failure. I thought that utilizing the "reed switch" type would be a better component, so I went with this model - after measuring the tank depth.I found its color code to be "reversed" compared to my existing harness, but that was easily determined/corrected by using an Ohms meter to confirm which wire went to the battery ground. I then connected the unit to the harness before installing it into the tank, to verify its operation. Sliding the ring up and down the tube showed the expected response on my fuel gauge. (Just don't forget you need the battery and ignition switches "on" for the test).With all power "off" for safety, I then installed the sender per instructions. It is a complete kit, containing the gasket and the special screws for installation. The only PITA is getting that 5-point "star" screw hole pattern correct. It only aligns correctly one way and it's just difficult to see the difference without "some" trial and error, (especially if you coated the gasket with silicone). However, I eventually managed to get it right and cross-tightened the fasteners to facilitate completion.I knew the former sender's reading on the tank's contents, so with the new sender installed, it was good to see that it agreed with the former reading. This tank depth measured 17.5" from its bottom, to the top, (inside) - so I had to select this unit as the closest match, (the "guide" says to buy 1" shorter than actual internal tank space). But I decided that if this one read nearing empty "sooner", (due to that extra half inch of the fuel level) it would be better than being in error in the other direction, (showing fuel when there is none!).I recommend this unit, as it appears to be nice quality and includes everything you need in the package to make the replacement with ease. I would recommend adding silicone or your favorite sealant to the gasket, but if surfaces are clean and true, it may not be necessary.

Extremely high quality construction. Works with a series of reed switches and fixed resistors. The float contains a magnet that opens/closes each reed switch as it moves. No variable resistor to fail and reed switches are often rated for billions of actuations. While this sensor gives a series of steps rather than being continuously variable, it's more than precise enough for a boat, which is likely to see large differences in fuel level at the sensor from to the boat pitching and yawing in response to chop, wakes, and acceleration.The length shown is the actual length of the sensor as measured from the bottom of the mounting plate. IT IS NOT THE RECOMMENDED TANK DEPTH FOR THE SENSOR, as specified by some other manufacturers of similar sensors. Order a sensor at least 1" shorter than the depth of your tank. So if you have an 8" tank, you would order a 7" deep sensor. If you don't have sufficient clearance, you risk the sensor hitting the bottom of the tank, possibly wearing through the tank, causing a leak, and costing you several thousand dollars to fix (if the tank is permanently mounted below the fiberglass deck).Note: There are conflicting directions from the manufacturer as to what length to order. According to the directions I received with mine, it said 1" minimum, regardless of tank material. Their tech support line confirmed that number. But their web site said "the length should be 1" less than the depth of the tank if tank is plastic, and 0.5" less than the depth of the tank if tank is metal." Tank sag at sensor varies greatly depending on tank mounting, size, shape, material, wall thickness, sensor placement, and the amount of fuel in the tank at the time of measurement. So play it safe and order one that is at least 1" shorter than the depth of your tank (measured from top of tank at mounting flange to bottom of tank).WARNING: RISK OF FIRE - Do not use electric tools when installing this into a tank that has, or had, gasoline in it. Doing so could lead to a fire if fuel vapors are ignited by sparks produced within the tool (switch, brushes, etc.). If you must drill holes, whether enlarging existing holes or making new ones, use a pneumatic (air-powered) drill or a manually cranked drill to reduce the risk of fire. Good air circulation, whether by breeze or fan, can help keep fuel vapor levels down.

Great product just would not work with my gauge

Exact fit replacement for fuel sender on my boat.

Seems to be well made. Functuon tested with guage prior to install and had perfect range of travel. Seems to go up in about 9 or 10 separate steps, as to be expexted with a reed switch type transmitter. Much more reliable than the old style swing arm type.

Measure tank depth to ensure it will fit, give enough head room to allow the sending unit to not hit the bottom of the tank, Used on a 96 Four Winns Horizion 17.5' boat with inboard 80L fuel tank. Sending unit worked well and accurate (for a boat) better than the OEM arm+float style that this replaced. Modified existing 2 wire harness to connect to the wiring pigtail provided on the new sender without issue.

all good works fine

Worked very well and helped correct the issue I had with my new gauges not being the correct resistance reading for my old sensor.

I ordered the 11 1/2” (to fit my 98’ Mastercraft Sportstar 19) just two days ago and got it time for my summer vacation, thanks Amazon! . Please note, I had to use different screws (than the ones that came with the sending unit) to match the old screw pattern, other than that this kit is an awesome retro fit. Will monitor and report back when we return from holidays!