Gross HP VS PTO Horsepower

The main differences between gross horsepower and PTO (Power Take-Off) horsepower in tractors are vast.

Gross horsepower is measured at the engine, while PTO horsepower is measured at the PTO shaft at the rear of the tractor.  It's always higher than PTO horsepower.  PTO horsepower is typically 20% or more less than the engine (gross) horsepower.

PTO horsepower is considered more important for real-world applications, as it represents the actual power available for operating implements.

The difference between gross and PTO horsepower can indicate the tractor's efficiency in transferring power from the engine to usable output.  PTO horsepower accounts for power losses due to the transmission, hydraulic systems, and other components that consume energy before it reaches the PTO shaft.

When selecting implements, it's crucial to match their power requirements to the tractor's PTO horsepower, not the gross horsepower.

Understanding these differences is essential when comparing tractors or selecting implements, as PTO horsepower provides a more accurate representation of the tractor's usable power for most farming applications.

If you need any further help or have any questions about service, tractors, implements, or anything else equipment-related, please contact your dealer, local mechanic, or call us at 602-734-9944.  Please ask about our current new and used tractor supply.

If you are looking for old, vintage, classic, or new tractor parts, send us a part request. 

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