Being a practical guy, I can’t at this point justify buying a snowmobile just for ice fishing, so my four wheeler has to do double duty plowing snow and dragging my ice house around. Now on my second four wheeler, I think I’ve figured a few things out, so I will share my tips for setting up an ATV to do business on the ice:
1. AUGER CARRIER. If you want to carry your auger on the four wheeler and not in the sled/shelter, which is a good way to go if you like to drill lots of holes and move around, you can make your own auger carrier for your machine without paying the excessively high prices the manufacturers want for their carriers. I bought a plastic auger carrier from Otter, added some aluminum straps and a bit of wood, and mounted it to my Arctic Cat Speedrack system using 7/16″ coupling nuts. The coupling nuts fit very snugly in the plastic inserts, and just need to be drilled for pins. To give credit where credit is due, I wasn’t the original genius who thought of the coupling nut idea for the Speedrack system. See pics below for my personal mods:

Auger carrier on rear rack of Arctic Cat 400 4x4.

- Closeup of 7/16″ coupling nut in Speedrack slot. Note pin placement.
2. BUCKET CARRIER. I added a bucket carrier on the right rear of my four wheeler because it’s handy for more than just ice fishing, and also because it’s nice for carrying my flasher and a couple of ice rods for those scouting runs. Mine is a fairly inexpensive Mad Dog product. I had to redrill the mounting plates to make it work, but I like the simplicity of it. I added some Goodyear heater hose around the metal rim to reduce rattles and jam-fit the bucket. Another pic shows the bucket carrier and another view of the auger carrier:

- View of bucket carrier behind auger carrier.
3. WINDSCREEN. A windscreen is an essential piece to add for ice fishing in my area. The wind never seems to stop blowing, and as snowmobilers know, it is COLD when you’re moving across open areas. This is one piece that I was reluctant to DIY. Arctic Cat makes a pretty nifty windscreen, so it was worth the money.

- Windscreen on my 2004 Arctic Cat 400.
4. SNOW PLOW. Finally, the snow plow is an accessory that is not necessary for ice fishing, but I felt the need to address it since it is a common winter accessory and it comes into play when setting up the four wheeler for ice fishing. First of all, my use of the snow plow includes plowing out the parking area for my utility trailer, which is used for hauling my four wheeler on ice fishing expeditions, so it does have an indirect use. Plows also come in handy for clearing areas on the ice, but I often remove mine when setting out on expeditions where I think it might turn into a liability if I have to navigate deep snow. This means that an easily removable plow is a good choice. I have found none better than the Moose Utility Division plows. It drops with two pins, and is tough as nails. I choose to raise and lower my plow with my Warn winch and a synthetic winch cable, but it can also be done with a manual setup.

- Moose ATV plow on my Arctic Cat.
With those mods, I think just about any 4×4 four wheeler can be turned into a relatively capable ice fishing machine. Many folks would also add tire chains to the list, and I agree that they make a big difference in traction. I have not, however, found a set that I like very much. So far, I have had good luck with my machine in four wheel drive, and of course, it doesn’t hurt to ride an Arctic Cat which has significantly better ground clearance than other machines.
One final recommendation is to use a fixed hitch for towing ice shelters and sleds. The first time I tried to tow my shelter with a rope, and stopped a little bit too fast, I realized I had a lot more control over what I was towing with a fixed tow bar. Several companies make universal ones, and most ice shelter/sled companies make one for their products.
Enjoy the ice fishing season, and be safe!