I also have an air compressor for boondocking as well as the tire plug kit and stuff to change a tire but we have never had to try. We have a few tools for the air compressor, an impact wrench and blower kit. I also have a really nice charger for getting the house batteries charged more quickly if needed that is kept under the dinette.
The tool box is a standard metal one with the tray and an assortment of stuff, sockets in both metric and standard as mentioned above, set of screwdrivers, measuring tape, vise grips, adjustable wrenches, and I have an electrical kit and some wire in there, a hammer, one of those orange plastic sledges, and more. We carry an 18 volt drill and bits and extra batteries and charger too.
I have a few extra plumbing parts. A couple of connectors, a scrap bit of pipe, a cap and some teflon tape. I have a bunch of little stuff, like velcro straps, twine, scissors, tape, 3m strips, etc. We have lent and given away a few things. We had a roll of nylon twine for folks who forgot their tent poles! Nice to have stuff for the neighbors if needed. That is what campers do.
The tool box rides under the dinette bench and it comes out more frequently than you would think.
Interestingly I have never carried belts filters etc. But I do have some oil and one of the darned bottles got a hole poked in it and leaked all over one of our outside compartments.
I have the Harbor Freight meter too and both regular and mini fuses. I had to buy mini's on the road. And that is another option. There is a reason RV'ers like Walmart.
The list actually goes on and on. What about the water stuff? I've added stuff I've needed when I didn't have it, Like a universal water connector (rubber boot on one end) and various hose parts. Also 120 volt electrical connectors of various types. 50 to 30 watt, 30 to 15, etc. I have a variety of plastic drawers and boxes in one overhead compartment for this stuff. One whole overhead compartment, and the manuals etc. are all in there too.
Yes, I have weighed us fully loaded and we are fine. Most of this stuff doesn't weigh that much!
2018 Minnie Winnie 25b New to us 3/2021
Former Rental Owners Club #137
2003 Itasca Spirit 22e 2009-2021