Tractor Sizing Tire size info 8-18

KenCombs · Feb 16, 2005

I have an MT180H with 8-16 tires fropm a mt160. Apparently these were installed by the new dealer as the rims seem to match the rest of the tractor. The original factory tire was a 9-18 ag lug tire. I need the diameter of the originals so I can determine what turf tires would be near the same size. The tires on it now are about 31-32 inchs in diameter and the turfs I am considering are 36" in dia and 12" wide. There may be enough space avialable to hande a 12w tire, if not I will make spacers, assuming the diameter is close to that of a9-18, Have been able to find just about every other size on the Goodyear and Firestone site, but no 9-18.

Can anyone help??

benkapitanec · Feb 27, 2005

I own a MT 180 HD, and I have the big wide turf tires on my 4-WD tractor. I'm not sure if you have 2-WD or 4-WD but my owners manual lists the following for turf tires:
Front (2WD) 20x8.00-10
Front (4WD) 6-12
Rear (2&4WD) 9.5-18

For AG tires:
Front (2WD) 4.50-10
Front (4WD) 5-12
Rear (2&4WD) 8-18
I hope that helps.

KenCombs · Feb 27, 2005

Thanks for the info. My problem is that I have 16" wheels and would like to go to turfs that are near the same Diameter as the original 18" tires . Could you measure the diameter of your turfs? I think my 8-16 ags are about 31". The 18s should be about 32.5 or 33 but I want to be sure before investing in new tires that are too big.

I was wondering about the fronts also, thanks for that info. I will be looking for some of those too.

twinstackram · Feb 28, 2005

I have a IH 234 which was made by mitsubishi, but I have turf's 6-12 on the front and 9.5-18 rear I wanted to put ag tires on but I need the 8-16 rear rims to switch to ag,I wouldn't mind trying to find somebody that wants turfs that have ags to trade with.