Marine Trim Sender Sensor Sending Unit for Volvo Penta SX DP-S DP-SM Outboard Drive Replace 3849411 3855535 3863007 3849413
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I'm not sure, but it's possible that you have a wire with the insulation shaved off, and the water is acting as a conductor, resulting in the intermittent function.
The minimum could be anything between 0 and 100. 10 ohms.
I have a 1997 Chris Craft with an OMC/Volvo Penta SX Cobra, and I removed the old sender unit, which had the same part number as the one listed above, 3855074. I'm in the market for a new one; will this one fit or do you know where I can find one? Thanks
Selected User Reviews For Marine Trim Sender Sensor Sending Unit for Volvo Penta SX DP-S DP-SM Outboard Drive Replace 3849411 3855535 3863007 3849413
I had previously purchased one of these from a different Amazon seller, and the first one I received had a resistance that was completely out of whack. I used an ohm meter to check the first one. The trim gauge would have shown full up when the outdrive was barely up if I had installed that device on my boat. I responded by returning it. br>br>When I used an Ohm meter to check the resistance of the product I'm reviewing, it was within the acceptable range. Now I'll say something. My boat is a Horizon 190 from Four Winns, with a 5. Volvo Penta SX-0 is a 0 horsepower Volvo Penta SX-0 engine. It was a little difficult to replace my factory sterndrive with an M model. I had to search the engine bay with my hand (because I couldn't see) for the factory trim sender wire that ran through the transom. After that, I went to the back of the boat and wrapped and taped on a good quality string (I use masonry string because it can be pulled so tight). I then took a screw driver and pushed the old grommet through the transom from the outside, before returning to the engine bay and pulling the old sending unit wire and string through. Then, using the string as a fish tape, I drew in the new one. br>br>I'll be honest, I've read a lot of reviews about this thing failing once it gets wet. Clearly, there has been a leak. Before putting it together, I covered it with liquid electrical tape. It's like all over the place in the unit. The shaft of the rheostat was the only place where I didn't coat it - Of course. br>br>A dry test of the system showed that it was working properly. No problems; I expect to get the boat in the water in a few days, and if it doesn't, I'll come back here and change my review. You will not hear from me if it continues to work.
As a replacement for the factory OEM Volvo Penta sender, this appears to work well. Because I couldn't remove the original hull grommet without removing the V8 engine, I simply cut and spliced the wires with low-cost wire cutters. Connectors that have been soldered at a high temperature and that have been heat-treated I shrink, knowing that I'll have to come back to this in a few years.
It's fantastic!.
Outside, it's simple to install and set up, and it does the job.
The first one died before the return window closed, and the second one died after it closed. Junk.
This sender was a total success. The default gauge settings are exactly what you'd expect.
Before installing, check the connected wires. Any movement or flex in the wires where they enter the trim sender unit causes the connection to be lost. Something was wrong with this unit on the inside. It's extremely annoying.
Trim gauge never set right and worked fine for about a month before becoming all over the place and not reading consistently.
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