Quick answer:
The John Deere 4105 tractor has 41 hp engine horsepower and 32.5 hp PTO horsepower.
Engine horsepower41 hp
PTO horsepower32.5 hp
Drawbar horsepower32.5 hp
Rated RPM1,900 rpm
Torque91.8 lb-ft
Operating weight2,987 lb
John Deere 4105 Horsepower Details
| Engine horsepower | 41 hp |
|---|---|
| PTO horsepower | 32.5 hp |
| Drawbar horsepower | 32.5 hp |
| Rated engine RPM | 1,900 rpm |
| Engine torque | 91.8 lb-ft |
| Engine displacement | 1.5 L |
| Engine cylinders | 3 cylinders |
| Engine model | Yanmar 3TNV84T-KJT |
| Operating weight | 2,987 lb |
Horsepower Comparison Chart
Engine horsepower comparison
PTO horsepower comparison
Drawbar horsepower comparison
Operating weight comparison
John Deere 4105 Extra Horsepower Notes
| Horsepower note | For power comparison, the John Deere 4105 sits at 41 hp engine horsepower with 32.5 hp available at the PTO. |
|---|---|
| PTO note | Use the John Deere 4105’s 32.5 hp PTO rating when sizing implements; the 41 hp engine rating is not the number the implement actually receives. |
| Drawbar note | The John Deere 4105 combines 32.5 hp drawbar horsepower with 2,987 lb operating weight, so traction and ballast can matter as much as power for pulling jobs. |
| Power-to-weight note | At 2,987 lb and 41 hp, the John Deere 4105 works out to about 72.9 lb per engine horsepower, making it light for its power, so traction and ballast can become the limiting factor before engine power. |
| Engine note | Engine details for the John Deere 4105 come together as engine model Yanmar 3TNV84T-KJT, 1.5 L displacement, 3 cylinders, rated at 1,900 rpm. |
| Torque / RPM note | The John Deere 4105’s 91.8 lb-ft torque rating works with its 1,900 rpm rated speed, so load response depends on both numbers. |
Official information note
Mistakes do happen. Horsepower, PTO horsepower, drawbar horsepower, weight and engine specs can change by year, market, engine option, cab, transmission and test standard. Please check the operator manual and official deere.com website for official information.







