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7.3L Powerstroke Specifications & Information

7.3L Powerstroke Specs & Info

Ford’s Claim to Fame in the Diesel World

The 7.3L Powerstroke is widely regarded as one of the most reliable Diesel engines ever produced. It’s so reliable even die-hard Cummins and Duramax enthusiasts acknowledge it’s widespread success. This makes them one of the most sought after diesels today. How sought after? Prices for a used 7.3L Powerstroke with 200,000 miles are still upwards of $10,000. That’s a hefty price to pay for a 20 year old truck. Still, most people will tell you they’re worth it. If you’re looking for your first diesel and have a low budget, this is one of the trucks you should consider. Enough with me talking up these trucks though. Let’s get to what you want to know, 7.3L Powerstroke specifications.

7.3L Powerstroke Specifications
OBS 7.3L Powerstroke

1994.5-2003 7.3L Powerstroke Diesel Equipped Ford SuperDuty Specs

International Navistar built the 7.3L Powerstroke that was introduced to the Ford Superduty in 1994. It was turbocharged and featured direct fuel injection via Hydraulic electric unit injectors (HEUI injectors). These new injectors were partnered with a high pressure oil pump and a low pressure fuel lift pump. These additions, along with other improvements, made the 7.3L Powerstroke more emissions friendly, and more capable. The 1994 Ford Superduty with the 7.3L Diesel engine produces 210 horsepower and 425 lb-ft of torque. That’s an increase of 40 horsepower and 87 lb-ft of torque over the IDI. International Navistar also made structural improvements to promote reliability and dependability. These improvements include six head bolts used per cylinder, forged steel connecting rods, and an external oil cooler. Compared to the 6.0L Powerstroke, the 7.3L came from the factory bulletproof.

Ever seen the term OBS used? OBS means old body style. Ford Superduty trucks with a model year before 1999 feature this old body styling. In 1999, trucks equipped with the 7.3L Powerstroke gained a new body-style. This body style was kept until 2008, when Ford also replaced the 6.0L Powerstroke engine with the 6.4l Powerstroke. The new body style 7.3L Powerstroke benefitted from technological improvements and a more luxurious interior.

7.3L Powerstroke Specifications Chart

Below is a comprehensive list of 7.3L Powerstroke diesel specifications. These specs are for 1994.5 to 2003 Ford Superduty trucks with the 7.3L Powerstroke engine. If you have a 7.3L engine prior to 1994.5, visit our 7.3L IDI diesel specs page. The specs below are based off of OEM specifications. Check your owners manual or call Ford directly to make sure you have proper fluid fill specifications.

Engine Design:V8
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 or 444 cubic inches
Engine Weight:920 lbs
Bore:4.11 inches or 104.4 mm
Stroke:4.18 inches or 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 Powerstroke Tow Capacity

7.3L Powerstroke tow capacity depends on cab configuration, whether the truck is two-wheel or 4-wheel drive, and whether the truck is a dually or not. Peak 7.3L Powerstroke conventional tow capacity is 12,500 lbs. Peak 7.3L Powerstroke 5th wheel tow capacity is 13,900 lbs. Want to see all Powerstroke towing capacities? Visit our Powerstroke Tow Capacity guide.

1994.5-2003Conventional Tow Capacity5th Wheel Tow Capacity
1994-199710,000 lbs13,500 lbs
1999-200312,500 lbs13,900 lbs
Receiver Size2″
7.3L Powerstroke Tow Capacity
7.3L Powerstroke Towing a Jeep Wrangler


Learn More About the 7.3L Powerstroke

Want more 7.3L Powerstroke information? Check out our other resources and posts about these trucks!

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Founder of Diesel Resource and a complete diesel head. Has a little bit of problem buying too many trucks. Learn more about him by checking out his truck.