Tire size
14.9-38 Tractor Tires
14.9-38 is a bias farm tractor rear tire size with R-1 tread, used for row crop.
New and used options. Tell us the quantity, your machine and where to ship.
14.9-38 tires listed now
Not what you need? We source more 14.9-38 tires than we list. Add the size to your quote list above.
What “14.9-38” means
- 14.9Section width: 14.9 in (378 mm)
- -Bias-ply construction
- 38Rim diameter: fits a 38-inch wheel
Where 14.9-38 is used
| Type | Tread | Construction | Typical use |
|---|---|---|---|
| Farm Tractor Rear | R-1 | Bias | Row crop |
Buying 14.9-38 tractor tires
14.9-38 is a narrow, tall rear tire for row-crop tractors. It is about 14.9 inches (378 mm) wide on a 38-inch wheel. Its narrow footprint fits between tight rows, and the tall rim gives crop clearance for cultivating and spraying. It is often run as duals on row-crop tractors, and it is also used on older tractors that came with narrow rears.
The radial equivalents are 14.9R38 and 380/85R38. On a tractor that spends a lot of hours in the field, a radial gives more traction and longer wear.
Row width and duals
Narrow rears only work if they sit centered between your rows. Tell us your row spacing and whether you run duals, and we will check that the tire width and dual spacing fit. For wider spacing and heavier work, compare with 16.9-38 and 18.4-38 on the same wheel diameter.
What to check
- Rim width: 14.9-38 fits a narrower rim than 18.4-38. Check your rim marking before changing width.
- Ply rating: match or exceed your current tires, especially for duals and heavy three-point implements.
- Tread: R-1 is standard; ask about R-1W for wet soil.
- Used tires: ask for the tread depth, the date code and photos of both sidewalls.
Send the quantity, row spacing and delivery location for a quote.
What do 14.9-38 tires cost on our site?
We list 1 model in 14.9-38. One has a listed price: $1,417 per tire (Titan Hi-Power Lug). Prices are per tire in US dollars and change with stock and season.
| Model | Tread | Load / ply | Price per tire |
|---|---|---|---|
| Titan Hi-Power Lug | R-1 | 6 ply | $1,417 |
How tall is the 14.9-38 tire?
The nominal overall diameter is about 63.3 in (1,609 mm), which gives a rolling circumference near 199 in (5,054 mm). That figure is an estimate that assumes an 85% aspect ratio, the usual rule for old inch sizes. Real tires vary by make and load, so treat it as a guide and use the tire diameter calculator or the lead-lag calculator before you change size on a front-wheel-assist tractor.
Is 14.9-38 a radial or a bias tire?
It is a bias-ply size. The dash in the size marks bias construction, which costs less and has stiffer sidewalls. See the radial vs bias guide.
Brands we source
- Michelin
- Bridgestone
- Goodyear
- Trelleborg
- BKT
- Firestone
- Titan
- Alliance
- Mitas
- Continental
- CEAT
- Yokohama Off-Highway
- Nokian Tyres
- Cultor
- Galaxy
- Carlisle
- Petlas
- Ascenso
- Maxam
- Ozka
Brand availability varies by size. Ask us which brands we can supply in 14.9-38, new or used.