How much horsepower does a 2003 Ford F350 7.3 have?
The 2003 Ford F-350 with the 7.3-liter Power Stroke diesel is rated at about 235 horsepower.
For context, this figure reflects the SAE net horsepower rating Ford used for that model year. The engine delivers roughly 525 lb-ft of torque as well. The 7.3L Power Stroke was a mainstay in Ford's heavy-duty lineup through the late 1990s and early 2000s, and the exact numbers can vary slightly due to testing standards, wear, altitude, and modifications. The following summarizes the core power specifications for the 2003 F-350 with this engine.
Power specifications for the 2003 7.3 Power Stroke
Before listing the numbers, note that the following items capture the primary power figures most owners and spec sheets reference.
- Horsepower (SAE net): 235 hp @ approximately 2,600 rpm
- Torque (SAE net): 525 lb-ft @ roughly 1,400–2,800 rpm
- Engine displacement: 7.3 liters
- Engine type: V8 turbo-diesel with hydraulic electronic unit injection (HEUI)
In practical terms, the 235 hp rating paired with 525 lb-ft of torque gave the 2003 F-350 7.3 a level of towing and payload capability that was competitive for its era, with the torque peak available at relatively low engine speeds contributing to strong low-end pulling power.
Context and caveats
horsepower ratings are often cited as SAE net figures for a given year. Real-world output can vary with engine wear, altitude, fuel quality, and any aftermarket modifications. If you're comparing to other model years or engines, note that later Power Stroke generations and other Ford diesel options may have different horsepower and torque figures even within the same truck family.
Additional notes
For enthusiasts or buyers evaluating a used 2003 F-350, consider also checking variations in exhaust cleaning, turbo efficiency, and the overall condition of the diesel system, as these factors influence perceived performance beyond the official horsepower number.
Summary
The 2003 Ford F-350 with the 7.3 Power Stroke is officially rated at about 235 horsepower and approximately 525 lb-ft of torque (SAE net). This solid combination provided strong low-end torque and reliable heavy-duty performance for towing and payload duty in that model year.
Is a 2003 7.3 Power Stroke a good engine?
You heard correct, the 7.3 is one of the most reliable diesels ever made. I wouldn't hesitate buying one in that price range as long as there's minimal blow by. They go for premium in my area.
What are the bad years for 7.3 Power Stroke?
The 7.3L Power Stroke years to avoid are generally late 2002 through 2003 because they used weaker, powdered metal rods (PMRs) instead of the stronger, forged rods found in earlier models. These PMRs are a point of concern for anyone planning to modify the engine for higher horsepower. Otherwise, all 7.3L Power Strokes are considered reliable, though the older 1994-1998 models produced less power and may have more age-related issues.
This video discusses potential issues and areas to inspect when buying a used 7.3L Powerstroke: 1mThoroughbred DieselYouTube · Jun 19, 2020
Years to be cautious about
- 2002-2003 (specifically, late 2002-2003): These years are often mentioned for their use of powdered metal rods (PMRs), which are less durable for high-performance applications. However, they are still reliable for stock use and are not necessarily a "bad" year if you don't plan on heavy modifications.
- 1994-1998: These are the oldest models and have less horsepower than later versions, which might be a drawback for some users. They are still considered reliable but are more likely to have age-related wear and tear.
Why these years?
- Powdered Metal Rods (PMRs): The main reason to avoid the late 2002-2003 model years is the switch from forged connecting rods to powdered metal rods. Forged rods are stronger and can handle more power, making PMRs a potential failure point if you plan to significantly increase horsepower.
- Lower Horsepower (1994-1998): The earliest models had less horsepower, which may not be ideal for daily driving or heavy towing compared to later models.
General considerations
- Reliability: Despite these specific concerns, the 7.3L Power Stroke is widely regarded as a very reliable engine.
- Age: All 7.3L engines are now quite old, so any model you consider will likely require maintenance and part replacements due to age, regardless of the specific year.
- Modifications: If you're planning modifications like performance tuning, staying away from PMR engines (late 2002-2003) is the most critical guideline.
How much horsepower does a 2003 7.3 Power Stroke have?
A 2003 7.3L Powerstroke engine produced either 250 horsepower with an automatic transmission or 275 horsepower with a manual transmission. The automatic version produced 505 lb-ft of torque, while the manual version delivered 525 lb-ft of torque.
- Automatic transmission: 250 hp and 505 lb-ft of torque.
- Manual transmission: 275 hp and 525 lb-ft of torque.
How much horsepower does a stock 7.3 Power Stroke have?
A stock 7.3L Powerstroke engine's horsepower varies by year and transmission, with most models ranging from 210 to 275 horsepower. Early versions (1994-1995) produced around 210 hp, while later models with a manual transmission reached up to 275 hp, according to Diesel Resource. The later automatic transmission models made about 250 hp.
- 1994-1995: 210 horsepower
- 1996: 215 horsepower
- 1997-1998: 225 horsepower
- 1999-2000: 235 horsepower
- 2001-2003 (Automatic Transmission): 250 horsepower
- 2001-2003 (Manual Transmission): 275 horsepower
