What tire size does the John Deere 4440 use?
The John Deere 4440 is commonly listed with 10.00-16 front tires and 18.4-38 rear tires. Another common listed setup is 11.00-16 front tires and 20.8-38 rear tires. Because many 4440 tractors have been changed over time, always confirm the tire size stamped on your current tire and the rim diameter before buying replacements.
John Deere 4440 Tire Size: 10.00-16 Front / 18.4-38 Rear
Common 4440 tire setups include 10.00-16 front with 18.4-38 rear, or 11.00-16 front with 20.8-38 rear on wider/heavier setups.
38 inch rim for both 18.4-38 and 20.8-38 rear tires
Front Rim Diameter
16 inch rim for 10.00-16 and 11.00-16 front tires
Common Rear Tread Type
R-1 agricultural lug tire
Common Front Tread Type
Ribbed tractor front tire or heavy-duty implement-style front tire
Drive Tires
Rear tires on typical 2WD John Deere 4440 tractors
Best Buying Rule
Match the size stamped on your current tire and confirm rim width/diameter
Best simple answer: if you are replacing original-style tires on a John Deere 4440, start with 10.00-16 front and 18.4-38 rear. If your tractor already has a wider setup, it may use 11.00-16 front and 20.8-38 rear.
John Deere 4440 Common Tire Setup
A common John Deere 4440 tire setup is 10.00-16 front and 18.4-38 rear. This is the clean default answer for many owner searches and is a practical original-style replacement target when the tractor still has compatible 16 inch front rims and 38 inch rear rims.
Common Tire Position
Size
Owner Notes
Front Tires
10.00-16
Common front steering tire size on many 4440 listings.
Rear Tires
18.4-38
Common rear drive tire size for row-crop and general field use.
Front Rim Diameter
16 inches
A 10.00-16 tire fits a 16 inch front rim.
Rear Rim Diameter
38 inches
An 18.4-38 tire requires a 38 inch rear rim.
Best Use
General field work, hay, planting, tillage, and row-crop use
Good all-round sizing for many 4440 tractors.
John Deere 4440 20.8-38 Tire Setup
Another common John Deere 4440 setup is 11.00-16 front with 20.8-38 rear. This gives the tractor a wider rear footprint than 18.4-38 tires and is often seen on heavier field setups where traction and flotation matter more.
Wider Tire Position
Size
Owner Notes
Front Tires
11.00-16
Common wider/heavier front tire option.
Rear Tires
20.8-38
Wider rear tire option with more footprint than 18.4-38.
Front Rim Diameter
16 inches
An 11.00-16 tire fits a 16 inch front rim.
Rear Rim Diameter
38 inches
A 20.8-38 tire uses a 38 inch rear rim, but rim width and clearance still matter.
Best Use
Heavier tillage, field traction, flotation, and dual setups
More rubber on the ground, but higher cost and more fitment checks.
Owner tip: plenty of 4440 tractors are no longer on their original tires. If the current rear tire says 20.8-38, do not order 18.4-38 unless you know the rim width and tractor setup will suit the change.
How to Read John Deere 4440 Tire Sizes
Older tractor tire sizes such as 18.4-38 and 20.8-38 use traditional agricultural tire sizing. The first number is the approximate tire section width in inches. The last number is the rim diameter in inches.
Tire Size
Meaning
Common 4440 Use
10.00-16
About 10 inches wide, fits a 16 inch front rim
Common front tire size
18.4-38
About 18.4 inches wide, fits a 38 inch rear rim
Common rear tire size
11.00-16
About 11 inches wide, fits a 16 inch front rim
Wider/heavier front tire option
20.8-38
About 20.8 inches wide, fits a 38 inch rear rim
Wider rear tire option
Best Replacement Tires for a John Deere 4440
The best replacement tires for a John Deere 4440 depend on the rims and the job. For a common original-style setup, use 10.00-16 front tires and 18.4-38 R-1 rear agricultural tires. For a wider setup, use 11.00-16 front tires and 20.8-38 R-1 rear agricultural tires if your rims, fenders, axle spacing, and use case support them.
Replacement Target
Recommended Spec
Why It Matters
Common front tires
10.00-16 ribbed or implement-style front tractor tires
Maintains common front steering fitment.
Common rear tires
18.4-38 R-1 agricultural lug tires
Matches common 38 inch rear rim fitment and field traction needs.
Wider front tires
11.00-16 front tractor tires
Useful where more front tire capacity or a wider front footprint is needed.
Wider rear tires
20.8-38 R-1 agricultural lug tires
Gives more footprint and traction than 18.4-38, if fitment is correct.
Rear tread type
R-1 agricultural lug
Best normal choice for tillage, field work, and traction.
Front tread type
Ribbed, implement-style, or heavy-duty front tire
Choose based on steering, loader use, road travel, and soil conditions.
Blunt verdict: do not buy 4440 tires from the tractor model alone. Read the tire sidewall, confirm rim diameter, check rim width, and look for ballast before ordering.
John Deere 4440 Tire Pressure
There is no single correct tire pressure for every John Deere 4440. Tire pressure depends on tire size, ply/load rating, radial vs bias construction, axle load, ballast, duals, loader use, road travel, and the tire manufacturer’s load chart.
Use Case
Pressure Guidance
Why It Matters
Field work
Use the tire maker load-inflation chart for your tire and axle load
Improves traction and reduces soil compaction.
Road travel
Use pressure suitable for road speed, load, and tire rating
Reduces heat buildup, sidewall squirm, and tire wear.
Front weights or loader use
Front tires may need higher pressure within tire limits
Extra front load can damage weak or underinflated front tires.
Fluid ballast or cast weights
Recheck inflation after adding ballast
More weight changes sidewall deflection and tire load.
Dual rear tires
Use a tire chart and match pressure side-to-side
Wrong pressure can make one dual carry more load than the other.
Real-world tip: if the 4440 rides rough, spins too easily, power hops, or wears tires badly, check pressure and ballast before blaming the tractor.
John Deere 4440 Rim Size and Fitment
The tire size tells you the rim diameter, but not the ideal rim width. A 18.4-38 rear tire and a 20.8-38 rear tire both fit a 38 inch rim diameter, but the 20.8 tire usually needs a wider rim for correct shape and performance.
Tire Size
Rim Diameter
Fitment Note
10.00-16
16 inch front rim
Common front tire fitment.
11.00-16
16 inch front rim
Wider/heavier front tire option.
18.4-38
38 inch rear rim
Common rear tire fitment.
20.8-38
38 inch rear rim
Wider rear tire option; rim width and fender clearance matter.
18.4-38 vs 20.8-38 Rear Tires
18.4-38 Rear
Common Fit
Good common rear tire size for many John Deere 4440 tractors. Usually narrower and cheaper than 20.8-38.
20.8-38 Rear
More Footprint
Wider rear tire option for more flotation and traction, if rim width, fender clearance, axle spacing, and dual setup allow it.
John Deere 4440 Front Tire Options
The common front tire size is 10.00-16. The 11.00-16 size is also seen on wider or heavier setups. Front tire choice matters more if the tractor carries front weights, loader equipment, or spends time on the road.
Search Term
Likely Answer
John Deere 4440 front tire size
Commonly 10.00-16.
John Deere 4440 11.00-16 front tires
A common wider/heavier front option.
John Deere 4440 loader front tires
Use correct size plus adequate ply/load rating for loader or front weight use.
John Deere 4440 wide front tire size
Often 10.00-16 or 11.00-16, but check the actual rim and tire sidewall.
John Deere 4440 Rear Tire Options
The common rear tire size is 18.4-38. The wider 20.8-38 setup is also common on heavier field tractors. Some 4440 tractors may also have duals, fluid ballast, cast weights, or changed wheel equipment.
Search Term
Likely Answer
John Deere 4440 rear tire size
Commonly 18.4-38.
John Deere 4440 18.4-38 tires
Common rear drive tire size.
John Deere 4440 20.8-38 tires
Wider rear option for more traction and flotation.
John Deere 4440 dual rear tires
Fitment depends on axle length, hubs, rim type, clamp hardware, spacing, and tire size.
Tube, Tubeless, Ballast, and Duals
Many John Deere 4440 tractors use tubes in the rear tires, especially if the rims are older, rusty, or have been exposed to calcium chloride ballast. Tubeless tires can work on suitable rims, but old row-crop tractor rims often make tubes the practical choice.
Best Original-Style Fit
10.00-16 front and 18.4-38 rear, if that matches your current rims and use.
Good Wider Setup
11.00-16 front and 20.8-38 rear can work well for heavier tillage and traction, if fitment is right.
Avoid
Wrong rim width, mismatched rear tires, dry-rotted rubber, weak ply rating, and duals without proper axle/hub setup.
Common John Deere 4440 Tire Problems
Problem
Likely Cause
Fix
Rear tires spin too easily
Worn lugs, wrong pressure, not enough ballast, or poor soil conditions
Check tread depth, pressure, ballast, and tire type.
Power hop or rough field ride
Wrong pressure, ballast imbalance, tire mismatch, or poor load setup
Adjust pressure and ballast using tire/load guidance.
Front tire failure
Overload, loader use, low pressure, or weak ply rating
Use proper load-rated front tires and correct inflation.
Rear tire leaks slowly
Old tube, rim corrosion, valve stem, calcium chloride damage, or bead issue
Inspect rim and tube; repair rim before installing a new tire.
Duals rub or sit wrong
Wrong spacing, hardware, axle length, or tire combination
Check axle, hub, spacer, clamp, and clearance setup.
Tractor sits unevenly
Mismatched front/rear tires or wrong tire height
Verify current tire sizes and rim fitment.
John Deere 4440 Tire Size Comparison
Rear Tire Width and Rim Comparison
Common rear tire width 18.4 inches
Wider rear tire width 20.8 inches
Rear rim diameter 38 inches
Front rim diameter 16 inches
Replacement Buying Checklist
Check This
Correct 4440 Target
Current front tire size
Read the size stamped on your current front tires
Current rear tire size
Read the rear sidewall and confirm rim diameter
Common front tire
10.00-16
Common rear tire
18.4-38
Wider front tire
11.00-16
Wider rear tire
20.8-38
Rear rim diameter
38 inch for both 18.4-38 and 20.8-38
Rear tread type
R-1 agricultural lug for normal field work
Front tread type
Ribbed, implement-style, or heavy-duty front tire based on use
Ballast
Check for fluid ballast or wheel weights before tire removal
Inflation pressure
Use tire sidewall and tire manufacturer load chart
John Deere 4440 Tire Size Questions
What size are the front tires on a John Deere 4440?
The John Deere 4440 is commonly listed with 10.00-16 front tires. Another common wider front size is 11.00-16.
What size are the rear tires on a John Deere 4440?
The John Deere 4440 is commonly listed with 18.4-38 rear tires. A common wider rear setup is 20.8-38.
What is the most common John Deere 4440 tire size?
A clean common answer is 10.00-16 front and 18.4-38 rear.
Can I put 20.8-38 tires on a John Deere 4440?
Yes, if the tractor has compatible 38 inch rear rims, correct rim width, enough fender and axle clearance, and the setup suits your work.
Can I put 18.4-38 tires on a John Deere 4440?
Yes. 18.4-38 is a common rear tire size for the John Deere 4440.
What tire pressure should a John Deere 4440 use?
There is no single universal psi. Use the tire sidewall and tire manufacturer load-inflation chart based on tire size, load, ballast, duals, and use.
Are John Deere 4440 rear tires tubeless?
Some may be tubeless, but many older tractors use tubes because of rim age, rust, calcium chloride damage, or bead sealing issues.
What are the best rear tires for a John Deere 4440?
For normal field work, use R-1 agricultural lug tires in the correct size, commonly 18.4-38 or 20.8-38 depending on your rims and needs.
Do John Deere 4440 tractors use dual rear tires?
Many 4440 tractors can be fitted with duals, but fitment depends on axle length, hubs, wheel hardware, spacing, tire size, and the job.
Is 10.00-16 or 11.00-16 better on the front of a 4440?
10.00-16 is a common listed size. 11.00-16 can be useful for heavier front loads, but rim fitment, clearance, and load rating matter.
John Deere 4440 Tire Size Summary
Common front tire: 10.00-16.
Common rear tire: 18.4-38.
Wider front tire: 11.00-16.
Wider rear tire: 20.8-38.
Rear rim diameter: 38 inch for 18.4-38 and 20.8-38 tires.
Front rim diameter: 16 inch for 10.00-16 and 11.00-16 tires.
Common rear tread: R-1 agricultural lug.
Common front tread: ribbed tractor front or implement-style front tire.
Best owner answer: check your current tire sidewall first; common 4440 setups are 10.00-16 / 18.4-38 and 11.00-16 / 20.8-38.
Last checked: John Deere 4440 common tire sizes, wider tire setups, front/rear rim fitment, and replacement guidance checked against tractor specification and operator manual references.
