The Unforgettable Ford 7.3L Power Stroke Diesel Engine (2023)

The Unforgettable Ford 7.3L Power Stroke Diesel Engine (1)
1996 Ford 7.3L F-350 Power Stroke Turbo Diesel

Engine Overview

Common Issues With the 7.3L Power Stroke

UpgradingPerformance Parts

Specifications Chart

Tow CapacitySpecs

(Video) Here's Why the 7.3L Powerstroke is one of the Best Diesel Engines Ever

EverythingYou Need to Know AboutFord's 1994-2003 7.3L Powerstroke Diesel Engines

We live in a world where things are always changing. Technology moves forward at such a pace that it can be difficult to simply keep up. Computers, phones, and even TVs all seem to need replacing on a regular basis as new models come out and consumers feel the need to upgrade. That’s not always the case, however. Once in a while, something comes along that, despite its flaws, endures expectations. The 7.3L Ford Power Stroke is one example of surprising durability, with tens of thousands still on the road.

Why is this engine so highly regarded? What is so great about it and how can it be made even better?

The Unforgettable Ford 7.3L Power Stroke Diesel Engine (2)
1994 Ford F-250 XL HD XLT 4WD 5 speed manual 7.3L V8

7.3L Power Stroke Diesel Engine Overview

First introduced to Ford’s F-Series truck lineup in 1994, the 7.3L Power Stroke diesel could be paired with either the ZF 5-speed manual transmission or the E40D 4-speed automatic transmission. These 1994 Power Stroke-equipped trucks produced 210 horsepower and 425 lb-ft of torque.

Made by International Navistar, the engine’s performance was a considerable step up from the performance of the 6.9L IDI and 7.3L engines that came before it. The engine’s displacement was the same as its predecessor, but it featured an electronically-controlled direct-injection system, allowing it to create as much as 21,000 psi. It offered tremendous reliability, greater even than the engine that followed it. It was highly successful for Ford, remaining in production until 2003.

The Unforgettable Ford 7.3L Power Stroke Diesel Engine (3)


Specs and Attributes of the 7.3L Diesel Engine

The 7.3L Power Stroke uses a single shot HEUI (Hydraulic Electric Unit Injector) injector system. This uses highly pressurized engine oil to create fuel pressure directly in the injector body, rather than a typical injection pump. The adoption of the HEUI promised greater performance and better fuel economy along with lower emissions.

As mentioned above, the 1994 Ford Power Stroke 7.3L engine produced 210 horsepower and 425 l-ft of torque, which was an increase of 40 HP and 87 lb-ft of torque compared to the IDI engine. Over the years that it was in production, the engine underwent many adjustments that made the trucks more powerful. In 1998, for example, near the midpoint of the engine’s production run, horsepower had increased to 225 HP at 3,000 RPM and torque was 450 lb-ft at 2,000 RPM. Starting that year, the trucks had caught up with California’s emission regulations and all the Power Strokes came with split-shot injectors.

(Video) 7.3 Powerstroke: Everything You Need to Know

By 2003, the Power Stroke was at the end of its production. In its final year, the automatic transmission provided 250 HP at 2,600 RPM while the standard transmission provided 275 HP at 2,800 RPM. The torque was 505 lb-ft at 1,600 RPM for the automatic and 525 lb-ft at 1,600 RPM for the standard.

The Unforgettable Ford 7.3L Power Stroke Diesel Engine (4)
1996 Ford 7.3L F-350 Power Stroke Turbo Diesel

Common Issues with the 7.3L Power Stroke

Although well known for its durability and still sought after today, the 7.3L Power Stroke is not without its problems. Here are some of the common ones:

7.3 Injector Driver Module (IDM) Problems

Located on the driver’s side fender, the IDM may suffer from water intrusion or damaged wiring, resulting in a no-start or rough running.

Cam Position Sensor (CMP)

A faulty CMP may cause the engine to cut out and may result in it not starting. This failure often is intermittent. It is probably worth keeping a spare on hand.

Injection Pressure Regulator Valve (IPR)

The IPR, located in the valley on the high-pressure oil pump may have the sensor go bad, or the wires may get damaged. They may also stick or suffer from damaged seals.

The Unforgettable Ford 7.3L Power Stroke Diesel Engine (5)
1997 Ford F-350 Crew Cab Long Bed

Upgrading Performance Parts

While the 7.3L is underpowered by today’s standards, it was quite impressive at the time. Current owners look to upgrade parts to improve performance. Some of the parts that you can consider include:

The Unforgettable Ford 7.3L Power Stroke Diesel Engine (6)


1999 Ford F 250 , Super Duty , Crew Cab , LONG BED , Power Stroke 7.3 Liter Turbo Diesel

Turbo Upgrade

Possibly the most obvious upgrade for your vehicle would be an upgraded turbocharger. This provides a means of gaining power that is affordable and reliable. Upgrading your turbo means it can supply considerably more boost through the entire rev range, providing you with more power and torque.

The Unforgettable Ford 7.3L Power Stroke Diesel Engine (7)


Exhaust Upgrade

Diesel trucks have their own unique sound that differentiates them from gasoline-powered vehicles. This comes largely from the exhaust system, the replacement of which is another popular modification that can increase performance. By replacing the exhaust of your 7.3L Power Stroke, you can improve exhaust flow, lower exhaust temperatures, and reduce backpressure. This is one of the most affordable means of increasing horsepower.


UP-PIPES KIT FORD 7.3L POWER STROKE 1999.5-2003 F-250 / F-350 / EXCURSION / E-350

Fuel System

Upgrading your fuel system is a great update for your vehicle, which may as much as double the stock horsepower and torque. The early Power Stroke engines are the ones most in need of a boost. Replacing a factory cam-driven lift pump with an electric unit and larger supply lines will not only provide better fuel supply pressure but also support more hp.

(Video) Cheap Trick To A Quieter Healthier Ford 7.3 Turbo Powerstroke ! MUST SEE !! READ The Description!!!

Another issue,particularly among the early enginestheir small fuel injectors sometimes providing inconsistent fuel pressure.If you are updating your fuel system, modifying your injectors can give you a boost in performance.

See all of DB Diesel's 7.3L Aftermarket and Replacement Fuel System Products Powerstroke '99-'03and Powerstroke 94-97

Larger injectors mean more than just greater volume. With larger nozzles, fuel can be injected more quickly, meaning less timing advance to reach the desired power. This in turn means less stress is placed on the engine’s rotating assembly.

The Unforgettable Ford 7.3L Power Stroke Diesel Engine (11)
2000 Ford F-350 Dually 7.3 Diesel

Intake Upgrade

Intake upgrades are an easy means of adding greater power and efficiency and is one of the most cost-efficient ways to do so. Upgrading the intake can provide gains in torque and power, quicker response, lower EGT, and greater fuel economy.

Check out all performance upgrade parts for the 1994-1997 Powerstroke and the1999-2003 Powerstroke here.

The 7.3L Power Stroke continues to have many fans today, and the remarkable durability ensures that they will continue to be fans for years to come, but that doesn’t mean that there’s no room for improvement.

With upgraded parts from BD Diesel, you can bring your 7.3L Power Stroke to a new level of performance. For more information about the best upgrades and how to get the most out of your engine, contact us today. We’ll be happy to answer all your questions.

(Video) How Navistar Almost Killed Ford's Powerstroke Lineup

The Unforgettable Ford 7.3L Power Stroke Diesel Engine (12)

2001 Ford F-350 SUPER DUTY

7.3L Power Stroke Specifications Chart

Engine:7.3L Power Stroke
Engine Design:Turbocharged V8 Diesel
Years Produced1994-1998 E40D 4-Speed Auto transmission ZF S5-47 5-Speed Manual Transmission 1999-2003 4R110 4-Speed Auto Transmission ZF S6-650 6-Speed Manual Transmission
E40D 4-Speed Auto transmission
ZF S5-47 5-Speed Manual Transmission

4R110 4-Speed Auto Transmission
ZF S6-650 6-Speed Manual Transmission

Displacement:7.3 Liters (444 cubic inches)
Bore:4.11 inches (104.4 mm)
Stroke:4.18 inches (106.2 mm)
Cylinder Head:Cast Iron /w 6 head bolts per cylinder
Engine Block:Cast Iron Block
Firing Order:1-2-7-3-4-5-6-8
Compression Ratio:17.5:1
Fuel Injection:Direct injection with new hydraulic
electronic unit injection (HEUI) Injectors
Up to 21,000 PSI
TurboCharger:1994-1997 : Garrett TP38 Fixed Geometry
1999-2003 : Garrett GTP38 Wastegated
Valvetrain:OHV, 2 Valves per Cylinder, hydraulic lifters
Pistons:Cast Aluminum
Engine Oil Capacity:15 Quarts /w filter or 14.2 Liters
Coolant Capacity:32.75 Quarts or 31 Liters
Fuel Tank Size:29 Gallons – Short Box
38 Gallons – Long Box
Horsepower (Varies):1994-1995 : 210 horsepower
1996 : 215 horsepower
1997-1998: 225 horsepower
1999-2000 : 235 horsepower
2001-2003 Auto Trans. : 250 horsepower
2001-2003 Manual Trans. : 275 horsepower
Torque (Varies):1994-1995 : 425 lb-ft
1996-1998 : 450 lb-ft
1999-2000 : 500 lb-ft
2001-2003 : 505 lb-ft (auto trans)
2001-2003 : 525 lb-ft (Manual Trans)

7.3L Power Stroke Max Tow Capacity

Exact power stroke towing capacity can depend on the cab configuration, whether you have a two- or four-wheel drive and if it’s a dually. The 7.3L Power stroke conventional tow capacity is at it’s best 12,500 lbs. 7.3L Power Stroke 5th wheel tow capacity is 13,900 lbs.

1994.5-2003Conventional Tow Capacity5th Wheel Tow Capacity
1994.5-199710,000 lbs13,500 lbs
1999-200312,500 lbs13,900 lbs
The Unforgettable Ford 7.3L Power Stroke Diesel Engine (13)
2002 Ford F-350 SUPER DUTY Lariat


What year was the best 7.3 Power Stroke made? ›

1994 - 2003

The 7.3L engines were an instant hit in the trucking world. Production ran non-stop through early 2003. By that time, this engine's performance and durability had made the Power Stroke name a legend among truckers. Diesel Power Magazine ranked the 7.3L one of the top ten diesel engines ever produced.

What is the life expectancy of that 7.3 diesel engine? ›

Robust, iron parts, conservative power and low engine speed are the key ingredients for any diesel engine lasting forever—and if a 7.3L has gone unmodified yet been well maintained its entire life, 400,000 to 500,000 miles is virtually guaranteed.

Is the Power Stroke 7.3 a good engine? ›

The 7.3 Ford Power Stroke engine is legendary in diesel circles. It is one of the main reasons the 1999 to 2003 Ford Super Duty trucks are still so popular today. Its reliability is unsurpassed and was produced just before emissions regulations added to diesel engines' cost, complexity, and reliability.

What is so special about the 7.3 Power Stroke? ›

It's the 7.3L, the venerable O.G. of the Power Stroke nameplate and the first diesel power plant to reach 500 lb-ft of torque. It's also the engine that brought full electronic control and an extremely intricate (yet ultimately reliable) HEUI injection system to the diesel industry.

Which 7.3 Power Stroke years to avoid? ›

In summary, it is best to avoid the 7.3 Powerstroke engines between 2001 and 2003 due to their numerous issues such as malfunctioning camshaft position sensors, leaking fuel filter housings, faulty valve springs and pushrods, and overheating engines – to name a few.

What is the most common problem with the 7.3 Power Stroke? ›

A common problem is with the Injection Pressure Regulator Valve or IPR. These electromagnetic valves regulate oil pressure going to the fuel injectors in an HEUI system. They tailor individual injector sprays based on the engine's needs. Seals can get damaged or worn out, causing them to stick.

Why was the 7.3 Power Stroke discontinued? ›

So when did Ford stop the 7.3L and why? The last year of the 7.3 Powerstroke engine was produced until about mid-2003 when it was replaced by the 6.0L because it did not meet emissions and noise standards required by the federal government and the “great” state of California.

What year did 7.3 Power Stroke end? ›

The 7.3 L DI Power Stroke was in production until the first quarter of model year 2003, when it was replaced by the 6.0 L because of its inability to meet California noise regulations, not the commonly believed emissions standards.

How many miles per gallon does a Ford Power Stroke diesel get? ›

Ford 6.7 Diesel mpg – 21. Ford 7.3 Gas mpg – 15.

What is the best Ford Power Stroke? ›

7.3L Powerstroke V8

Many classic truck restorers consider the 7.3L Powerstroke the absolute best diesel engine ever made by Ford. It was produced from 1993 - 2004 as Ford's version of the Navstar T444E turbo-diesel.

How much can a 7.3 Power Stroke diesel tow? ›

6.7L V8 Power Stroke Turbo Diesel
2020 Ford F-250 EnginesPerformance Specs
7.3L V8430 HP 475 lb.-ft. of torque @ 4,000 RPM 15,000 lbs. max. towing capacity 19,500 lbs. max. fifth wheel towing capacity
2 more rows

How much HP does a stock 7.3 have? ›

7.3L Power Stroke Specs
Engine:7.3L Power Stroke diesel V-8
Peak Horsepower:210 hp @ 3,000 rpm (intro horsepower rating, 1994 MY) • 275 hp @ 2,800 rpm (peak horsepower rating, 2003 MY)
Peak Torque:• 425 lb-ft @ 2,000 rpm (intro torque rating, 1994 MY) • 525 lb-ft @ 1,600 rpm (peak torque rating, 2003 MY)
19 more rows

How much oil does a 7.3 diesel take? ›

Some important stats for 7.3 fluid capacity include: Engine oil: 15 quarts. Transfer case: 2.0 quarts.

What kind of oil does a 7.3 Power Stroke take? ›

Engine Oil - SAE 5W-30WSS-M2C961-A1

How to get the best fuel mileage out of a 7.3 Power Stroke? ›

8 Basic Steps to Increase the Fuel Economy and Mileage
  1. Maintenance. Although this may seem pretty obvious, it is extremely vital. ...
  2. Lubricate Generously. This is another step you do not want to skip. ...
  3. Check Your Boost. ...
  4. Enlarge Your Exhaust. ...
  5. Check Your Tire Pressure. ...
  6. Replace the Cold Air Intake. ...
  7. Turn Off the AC. ...
  8. Add a Tuner Chip.

What is the difference between 7.3 International and Power Stroke? ›

The 7.3 IDI is not the same as the 7.3 Powerstroke engine. Despite sharing displacement designations, these engines have numerous differences. The 7.3 Powerstroke is computer-controlled, whereas the 7.3 IDI relies entirely on mechanical parts.

What is the best 7.3 chip for mpg? ›

If you are interested in fuel economy as well as more horsepower gains on your Ford Powerstroke 7.3L we recommend the TS (6 position) chip. It goes up to 140HP and also includes settings of 50HP, 75HP, and 100HP. The 6 position TS chip comes with a knob to shift your settings to what you desire.

Is Ford bringing back the 7.3 diesel? ›

Ford's heavy-duty pickup truck is new from the tires up for the 2023 model year and gets revitalized engines in addition to its new looks. Under the hood, the 7.3-liter V-8 gets a revised air intake and refined tuning, and there's an all-new 6.7-liter Power Stroke V-8 diesel engine.

Is the new Ford 7.3 a big block? ›

With a 7.3L displacement and 445 cubic inches, many might jump to the conclusion that the Godzilla engine is a big block Ford. However, because bore spacing dictates what is a big block or small block configuration, the Godzilla's 4.53˝ bore spacing makes it more a small block setup than big block.

Which Ford Powerstroke to avoid? ›

Ford Diesel Engine Facts

Yes, even though it's an older model, the 7.3l power stroke is still a powerful and reliable diesel engine. However, it's best to avoid the years 2001-2003 because the PSMs and camshaft position sensors often fail.

How do I know if my 7.3 Turbo is bad? ›

There are a number of signs you can look out for to tell if your turbocharger has blown:
  1. POWER LOSS. ...
  8. WEAR & TEAR.
Jul 25, 2019

Which is better Cummins or Power Stroke? ›

The Power Stroke has more horsepower but slightly less torque, while the Cummins has the opposite. However, as noted by AutoWise, the Power Stroke ultimately produces more horsepower, which is a better indicator of engine strength in real driving situations.

How long does the Ford Power Stroke diesel engine coverage last? ›

Power Stroke Diesel Engine Warranty:

The powerful and hardworking diesel engines in your new Ford model is covered for 5 years or 100,000 miles, whichever comes first.

What is considered high mileage for a Ford diesel truck? ›

Maintenance Is Important to Longevity

That said, while most gas engines are intended to last at least 200,000 miles on average, a diesel truck that is well-maintained can potentially last 350,000 to 500,000 miles.

Is Power Stroke diesel reliable? ›

Take out the emissions systems and the 6.7 Powerstroke is a very reliable engine. Even with the few common problems the 6.7L Power Stroke should be good for 250,000+ miles. Maintain your Ford 6.7L engine well and chances are it will reward you with a great overall experience.

What is Ford's strongest engine? ›

Venomous strike: The all-new 2020 Mustang Shelby GT500 will produce 760 horsepower and 625 lb. -ft. of torque, making it the most powerful street-legal Ford ever – with the most power- and torque-dense supercharged production V8 engine in the world.

What are the best years for a Power Stroke? ›

2008-2010 F-250 & F-350. If you're looking for the best example of how to make big plug-and-play horsepower, look no further than the 6.4L Power Stroke. With a programmer and free-flowing exhaust the '08-'10 trucks can produce 550 to 600 horsepower at the wheels and still tow just about anything you need them to.

What is Ford's most powerful diesel? ›

On October 27, 2022, the Dearborn-based truck maker announced its high output version of the 6.7L Power Stroke, available beginning in '23, would turn out a colossal 1,200 lb-ft of torque. The massive milestone blows Ram's previous class-leading number of 1,075 lb-ft out of the water. But not only that, Ford's new H.O.

What size turbo is on the 7.3 Power Stroke? ›

Stock GTP38 Turbo Sizing (For Reference): 60mm Inducer. 80mm Exducer.

How much HP can a stock 7.3 transmission handle? ›

As long as the 7.3L Power Stroke goes unmodified, the factory E4OD will generally live a while. Although, it can still be killed at the stock 210 hp and 425 lb-ft level with heavy abuse.

How much horsepower does a 7.3 Godzilla crate engine have? ›

The Megazilla produces 615 horsepower (458 kilowatts) and 640 pound-feet (867 Newton-meters) of torque.

How much horsepower does a Ford 7.3 Godzilla engine have? ›

430 hp at 5,500

How often should I change the oil in my 7.3 Powerstroke? ›

7.3L Powerstroke Maintenance Schedule : Normal Operating Conditions
Change Oil5,000 miles
Change Oil Filter5,000 miles
Change Fuel Filter15,000 miles or when filter restriction lamp illuminated
Replace Air Filter30,000 miles or 30 months (Or when restriction gauge in red zone)
9 more rows
Jan 7, 2020

What oil is recommended for PowerStroke engines? ›

Use motor oil meeting Ford Specification WSS-M2C171-F1. The manufacturer recommends 10W-30 for normal usage and 5W-40 for severe operations. If biodiesel fuel blends (B20 max) are used the use of 5W-40 or 15W-40 oil is recommended.

How much water does a 7.3 hold? ›

Cooling System Capacity and Specification - 7.3L
All.22.5 qt (21.3 L)

Will a 7.3 run without oil? ›

As it pertains to the 7.3L Power Stroke, once the engine oil level drops below 7 quarts (the engine holds 14) the high-pressure oil system that's required to fire the fuel injectors will cease to function, thereby safely shutting the engine down.

What kind of fuel injection does a 7.3 have? ›

The 7.3L utilizes Hydraulically actuated Electronically controlled Unit Injectors, commonly referred to as HEUI or “HUEY” injectors. These injectors utilize high pressure oil which is controlled by a poppet valve inside the injector to achieve injection pressures of up to 21,000 psi.

How much oil pressure does a 7.3 Power Stroke need to start? ›

As a general rule of thumb, less than a 30-percent duty cycle should be observed in a crank-to-start scenario (and also note that it takes 450 to 500 psi of ICP, minimum, to start a 7.3L).

What is the most HP out of a 7.3 Power Stroke? ›

The 7.3 Powerstroke is a two-valve behemoth which measures in at 444 cubic inches and has a maximum stock power rating of 275hp and 525lb. ft. of torque.

What year is the best Power Stroke engine? ›

Produced between 1994 and 2003, the 7.3-liter power stroke V8 was among the most powerful diesel engines during those years. What is this? Even these days, the V8 is still incredibly powerful, with a maximum HP of 250 and roughly 500 lb-ft of torque in the later years.

Is the 1996 7.3 Power Stroke a good engine? ›

Great body style, Powerful, dependable, long lasting and gets decent fuel economy too. The 7.3 power stroke is the best engine ever put in a pick up truck.

How much horsepower is a 7.3 Godzilla motor? ›

430 hp @ 5,500 rpm

How much hp is 7.3 Godzilla? ›

But last year, Ford Motor Company did just that when it released its new 7.3L gasoline V8 dubbed “Godzilla.” The big V8 is designed for Super Duty trucks and produces 430 horsepower at 5,500 rpm and best-in-class torque with 475 ft. -lb.

What year did the 7.3 Power Stroke end? ›

The 7.3 L DI Power Stroke was in production until the first quarter of model year 2003, when it was replaced by the 6.0 L because of its inability to meet California noise regulations, not the commonly believed emissions standards.

What are best years for Power Stroke diesel? ›

2008-2010 F-250 & F-350. If you're looking for the best example of how to make big plug-and-play horsepower, look no further than the 6.4L Power Stroke. With a programmer and free-flowing exhaust the '08-'10 trucks can produce 550 to 600 horsepower at the wheels and still tow just about anything you need them to.

How much can a 7.3 diesel tow? ›

6.7L V8 Power Stroke Turbo Diesel
2020 Ford F-250 EnginesPerformance Specs
7.3L V8430 HP 475 lb.-ft. of torque @ 4,000 RPM 15,000 lbs. max. towing capacity 19,500 lbs. max. fifth wheel towing capacity
2 more rows

How much horsepower does a 1995 7.3 Power Stroke have stock? ›

7.3L Horsepower/Torque

Power levels in the 7.3L Powerstroke started out at 215 hp and 425 lb-ft of torque for the 1994.5-1995 model years and were bumped up to 225 hp and 450 lb-ft for 1996-1997. It is no coincidence that these numbers were slightly higher than the 6BT Cummins of the same era.

What is Ford's most powerful truck engine? ›

2023 Ford F-150 Raptor R® Performance Highlights

Ford Performance took the most powerful engine in its engine lineup (the 5.2-liter V8 is the same engine that powers the Mustang Shelby GT500®) and optimized it for Raptor-level off-road performance and Built Ford Tough® durability.


1. Ford 7.3L Powerstroke Starter Replacement Procedure
2. Ford 7.3 Powerstroke Standard Maintenance
(BTR Justin)
3. TOP Problem Areas To Look At On 99-03 Ford Powerstroke | Secret Tips For Buying A Used 7.3L
(Thoroughbred Diesel)
4. 700,000 Mile 7.3 Powerstroke Teardown! Does This REALLY Have This Many Miles?
(I Do Cars)
5. Here's Why The Ford Powerstroke 7.3 Turbo Diesel Lasts Forever (And Why New Fords are Junk)
(Hoovies Garage)
6. This 7.3L F-TRUCK BEAST • CUSTOMS #31
(4WD 24-7)


Top Articles
Latest Posts
Article information

Author: Rev. Leonie Wyman

Last Updated: 25/07/2023

Views: 6284

Rating: 4.9 / 5 (79 voted)

Reviews: 86% of readers found this page helpful

Author information

Name: Rev. Leonie Wyman

Birthday: 1993-07-01

Address: Suite 763 6272 Lang Bypass, New Xochitlport, VT 72704-3308

Phone: +22014484519944

Job: Banking Officer

Hobby: Sailing, Gaming, Basketball, Calligraphy, Mycology, Astronomy, Juggling

Introduction: My name is Rev. Leonie Wyman, I am a colorful, tasty, splendid, fair, witty, gorgeous, splendid person who loves writing and wants to share my knowledge and understanding with you.