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What engine options were available in 2003 for the Superduty?

The 2003 model year offered a mix of gasoline and diesel engines across the Super Duty lineup, balancing everyday usability with heavy-duty torque for towing and payload. This article outlines the available powerplants and what they were intended to deliver.

In 2003, Ford offered four engine options for the Super Duty: two gasoline engines—the 5.4-liter Triton V8 and the 6.8-liter Triton V10—and two diesel engines—the 7.3-liter Power Stroke V8 and the new 6.0-liter Power Stroke V8.

Gasoline engine options

Gasoline power aimed at everyday driving and moderate-duty tasks, with two distinct configurations.

5.4-liter Triton V8 — approximately 260 horsepower and 350 lb-ft of torque.

6.8-liter Triton V10 — approximately 275 to 310 horsepower and about 410 to 435 lb-ft of torque.

Gasoline engines offered a straightforward balance of power, reliability, and lower maintenance costs for standard duties and lighter payloads.

Diesel engine options

Diesel power emphasized torque for heavy towing and sustained work, with two options available in 2003.

7.3-liter Power Stroke V8 — roughly 235 to 275 horsepower and about 500 to 525 lb-ft of torque.

6.0-liter Power Stroke V8 — around 325 horsepower and 570 lb-ft of torque.

Note: The 6.0-liter Power Stroke was introduced for the 2003 model year and became a prominent diesel choice, though early deployments were accompanied by ongoing updates aimed at improving reliability and performance.

Choosing among the options

When selecting among these engines, buyers weighed factors such as daily driving needs, towing requirements, payload capacity, fuel economy, and long-term maintenance considerations. Gasoline options generally offered simpler servicing and better efficiency for lighter workloads, while diesel options delivered greater torque and staying power for frequent heavy towing and commercial use.

Summary

The 2003 Ford Super Duty lineup offered four engine choices: two gasoline options (5.4L V8 and 6.8L V10) and two diesel options (7.3L Power Stroke and the new 6.0L Power Stroke). Each engine family served different duties—from everyday driving to serious heavy-duty work—making the 2003 model year a versatile offering for pickup buyers and commercial users.

Is the 2003 Ford 6.0 diesel a good motor?

The 2003 Ford 6.0L Power Stroke diesel is not considered a good motor in its stock condition due to known issues with head gaskets, the oil cooler, and the EGR system. While it has a reputation for being powerful and was on the Ward's 10 Best Engines list for 2003, its unreliability stems from its complex, cutting-edge technology, which was prone to failure in its early production year. It can be a good engine, but only after significant, costly "bulletproofing" modifications.

You can watch this video to learn about the common issues with the 6.0L Power Stroke diesel engine: 51sDust Runners Automotive JournalYouTube · Feb 17, 2022
Common problems with the 2003 6.0L Power Stroke

Head Gasket and Head Bolt Issues: This is one of the most well-known problems, often caused by a failure in the EGR cooler or oil cooler.
Oil Cooler Failure: The oil cooler has small passages that can become clogged with coolant debris, leading to higher oil and coolant temperatures.
EGR Cooler and Valve Failure: The EGR (Exhaust Gas Recirculation) cooler is prone to failure, which can lead to coolant leaking into the cylinders and causing the head gasket to fail.
High-Pressure Oil System (HPOP) Leaks: Leaks can occur in various places, such as the standpipe and dummy plugs, leading to a loss of oil pressure and causing the engine to stall or not start.
Fuel Injection Control Module (FICM) Problems: The FICM is another common electrical failure point for this engine.

This video discusses the top 5 issues with the 6.0L Power Stroke diesel engine: 44sGetty's GarageYouTube · Jan 9, 2025
What you need to know before buying

A 2003 6.0L is not a good choice if you are looking for a reliable, low-maintenance engine.
If you buy one, expect to invest in "bulletproofing" the engine to fix the known weak points. This can involve replacing the head bolts, upgrading the oil and EGR coolers, and addressing the high-pressure oil leaks.
The cost of repairs can be significant, often ranging from $2,000$ 2 comma 000$2,000 to $8,000$ 8 comma 000$8,000 or more, so factor that into your budget.
An engine that has already been "bulletproofed" by a reputable mechanic is a much better option than a stock one.

What diesel engine did Ford make in 2003?

6.0L Power Stroke Diesel
6.0L Power Stroke Diesel
In 2003, the next-generation 6.0L Power Stroke introduced Ford Truck customers to a new engine. With its variable geometry turbocharger technology, exhaust gas recirculation system and advanced, second-generation fuel injection system, the new 6.0L was a groundbreaking engineering breakthrough.

What engines are available in the 2003 Ford Super Duty?

Yes, the following 2003 F250 Super Duty Super Cab trims have turbo engines: XLT Pickup 4D 6 3/4 ft with a V8, Turbo Diesel, 6.0L, XL Pickup 4D 8 ft with a V8, Turbo Diesel, 6.0L, etc.

What years of Ford Super Duty to avoid?

Years to avoid for the Ford Super Duty include 2006, 2008, and 2011 due to numerous reports of engine, transmission, and electrical issues. Other years to be cautious with are 2003-2007 with the 6.0L Power Stroke engine (known for head gasket issues unless addressed), early V10 models, and certain 2004-2006 models with the 6.0L diesel engine.
Specific years to avoid

2006: Has a high number of complaints and recalls, including stalling, throttle issues, and "death wobble".
2008: Noted for braking failures and persistent "death wobble" issues.
2011: Frequently reports harsh transmission shifts and continues to experience the "death wobble".
2003-2007 (specifically 6.0L Power Stroke diesel): Known for head gasket problems and other engine issues in its factory form. These engines are often recommended only if they have been "bulletproofed" or have had the necessary upgrades completed.
2010: Has reported frame rust and electronics problems.
2020-2021: Had problems with the 10-speed transmission.

Other potential issues to be aware of

2002: Has a design flaw in the steering system where the idler arm can fail, and a separate issue with Triton engines ejecting spark plugs.
2017-2019: Some models in this generation had issues with the new aluminum body and the introduction of the 10-speed transmission.
2025: A recent recall for a brake failure risk in some models built during a specific time frame has been issued.

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.