Most Desired Accessories

You have very hard water where you live. You should check it.

Most things will be specific to your needs. A good sewer hose and fittings is essential. We hate bottled water but hate tap water even more so spent some money on an RO setup. Space is always a consideration so give great thought to things like outdoor chairs and gear and how they will store and how to keep things from moving around while travelling are good ways to spend some time and a little money (dishes, food items etc). If your MH doesn't have one I would also recommend a good TPMS.

Adapters to connect to different amperage in pedestal.
A set of tools to do repairs including various screwdrivers, slip joint pliers, box end wrenches and a multimeter(learn how to use basic operations)

Vent covers for the ceiling vents, which IMHO should be standard from the factory. Being able to have them open when it's raining or when driving down the road is a tremendous help.

I bought my motorhome used, so it came with some of the most essential accessories already included. The really important ones that I bought myself (and can think of right at the moment) were a decent #2 square head screwdriver and some towel bars to add to the zero that it came with that were suitable for bath towels.

If you have a proper EMS unit built in, one which will disconnect for low and high voltages, I personally don't see any need to get a redundant one. It's kind of like putting coasters under the saucers under your teacups.

TPMS for MH and toad, most popular is the TST 507 system.
GPS. Garmin for RV`s is the most popular. Im trying the Co-Piolot app this year.
Some type of air system for filling tires. I have a 2 1/2 gallon tank with built in compressor. it came with my air horn kit.

RV sized tool set or set of tools (found a small rechargeable drill and screw driver).

My permanent accessories: Solar, battery monitor, AGM batteries, cell phone amplifier and antennas, battery monitor, HD satellite dish, externally connected 120V 20A circuit for use with 30A pedestal, , dual acting storage slide, shelves in FRP, sliding shelves in kitchen, flag pole holder, GPS, extra shelf in storage area, PS window shade, CB – now unused, additional 120V and 12V plugs, 5” PVC fence post for storage, 2 water filters, full disconnect battery switch for each bank, cat comfort area, LED lights, external high pressure propane setup, etc.

Accessories not so permanent: Tool box, slide out pellet smoker, 50’ extension cord reel, tools, storage boxes for stuff, BBQ, firepit, TST tire pressure monitor, EMS full power protection hardwired, etc.

Accessories removed: Hughes internet satellite, in-motion SD satellite dish, 20’ awning courtesy of the wind, etc.

That’s for the first 10 years… :B

Adequate solar system...based your your energy use times one and a half..or two.

I say wait and take your rig out for a few trips before you start buying. There are so many things you'll hear are "needed" but until you know how you'll RV, you don't know if YOU will need them.

A basic tool kit and a #2 square screwdriver are the exception to the above. As with an emergency kit and first aid kit.

I carry an extra water pressure regulator and an extra water filter. Also an extra fresh water hose, a 50amp (or 30) extension cord, and an extra length of sewer hose...because you never know where the utilities will be located.

Some people carry a full size ladder. I only carry a three step ladder so I can wash my windshield.