The New Holland TG285 tractor engine horsepower is 285 hp | 212.5 kW, PTO horsepower is 240 hp | 179.0 kW, and the drawbar horsepower is 204.52 hp | 152.5 kW.
New Holland TG285 Horsepower Specs
| Engine horsepower | 285 hp | 212.5 kW |
|---|---|
| PTO horsepower claimed | 240 hp | 179.0 kW |
| PTO horsepower tested | 274.82 hp | 204.9 kW |
| Drawbar horsepower tested | 204.52 hp | 152.5 kW |
New Holland TG285 Useful Horsepower Calculations
| PTO-to-engine power transfer | 84.2% of engine hp reaches the PTO |
|---|---|
| Drawbar-to-engine power transfer | 71.8% of engine hp reaches the drawbar |
| Drawbar-to-PTO power ratio | 85.2% drawbar hp vs PTO hp |
| Engine size per PTO horsepower | 2.1 ci per PTO hp |
| PTO horsepower per liter | 28.9 PTO hp per L |
| Engine size per engine horsepower | 1.8 ci per engine hp |
| Engine horsepower per liter | 34.3 engine hp per L |
| Rated speed per PTO horsepower | 9.2 rpm per PTO hp |
New Holland TG285 Engine Specs
| Engine type | turbocharged aftercooled diesel |
|---|---|
| Displacement | 505 ci | 8.3 L |
| Bore and stroke | 4.488×5.315 inches | 114 x 135 mm |
| Compression | 17:1 |
| Rated RPM | 2200 |
New Holland TG285 Fuel, Cooling, Starting & Service Specs
| Starter volts | 12 |
|---|---|
| Battery volts | 12 |
| Firing order | 1-5-3-6-2-4 |
| Idle RPM | 850-2410 |
| Intake valve clearance | Cold: 0.010 inches | 0.254 mm |
| Exhaust valve clearance | Cold: 0.020 inches | 0.508 mm |
New Holland TG285 Horsepower Comparison Charts
Engine horsepower comparison
PTO horsepower comparison
Drawbar horsepower comparison
Displacement comparison
Rated RPM comparison
Engine size per PTO HP
Benchmarks use practical low, average and high ranges for the large ag tractor category. Use the operator manual and actual engine/tractor configuration before sizing implements or judging working power.
New Holland TG285 Horsepower FAQ
How much horsepower does the New Holland TG285 have?
The listed engine output is 285 hp, above the 210 hp benchmark average. That is a higher-power result, so ballast, tire setup and implement width matter if you want to use the full 285 hp.
How much PTO horsepower does the New Holland TG285 have?
The listed PTO output is 240 hp, above the 175 hp benchmark average. That is the number to use for mowers, balers, augers, pumps and other PTO tools that need up to about 240 hp.
How much drawbar horsepower does the New Holland TG285 have?
The listed drawbar output is 204.5 hp, above the 150 hp benchmark average. That makes the 204.5 hp drawbar number more useful than engine hp for tillage and heavy pulling.
How much engine power reaches the PTO on the New Holland TG285?
The PTO-to-engine transfer works out to 84.2%, from 285 engine hp to 240 PTO hp. That is a normal usable range for judging PTO implement fit.
How efficient is the New Holland TG285 for pulling work?
The drawbar-to-engine transfer is about 71.8%, from 285 engine hp to 204.5 drawbar hp. That gives a more grounded pulling estimate than engine horsepower alone.
Is the New Holland TG285 better judged by PTO hp or drawbar hp?
The drawbar output is about 85.2% of PTO output, comparing 204.5 drawbar hp with 240 PTO hp. That helps separate pulling ability from PTO implement ability.
How big is the New Holland TG285 engine?
The engine displacement is 505 ci, close to the 520 ci benchmark average. It is close to the normal engine-size range for this horsepower class.
Is the New Holland TG285 engine stressed for its PTO horsepower?
The engine has about 2.1 cubic inches per PTO hp, using 505 ci and 240 PTO hp. That is a smaller-displacement, higher-output style result.
How much PTO horsepower per liter does the New Holland TG285 make?
The output density is about 28.9 PTO hp per liter, using 240 PTO hp and 8.3 L of displacement. Higher hp/L means more output squeezed from each liter; lower hp/L usually means a more relaxed engine tune.
Horsepower and engine specs can vary by year, market, engine option, fuel system, test standard and tractor configuration. Check the operator manual, spec plate, parts book and official newholland.com website before buying parts, sizing implements or making repair decisions.

