The 7.3 Powerstroke is the V8 turbo diesel that built Ford's modern Super Duty reputation. Manufactured by Navistar International and badged for Ford from 1994 through 2003, it was the engine of choice for serious truck owners who needed real towing capacity, real durability, and real working life. Stock output ranges from 210 hp on early 1994 production to 275 hp on 2002 to 2003 final-year units, with torque between 425 and 550 lb-ft. With routine maintenance, these engines regularly clear 400,000 to 500,000 miles on the original bottom end.
Internally the engine uses a cast iron block, cast iron heads, two valves per cylinder OHV layout, and HEUI fuel injection (Hydraulic Electronic Unit Injector). HEUI uses high-pressure oil from the High Pressure Oil Pump (HPOP) to actuate the injectors, removing the high-pressure mechanical fuel pump from the system entirely. This is a key reason 7.3 owners prize the engine: fewer high-pressure fuel parts means fewer expensive failures over the long haul.
The 6.0 and 6.4 Powerstroke that followed used much higher injection pressures and emissions hardware that introduced known reliability issues. The 7.3 has none of that complexity. It runs cooler, simpler, and longer. For F-250, F-350, F-450, and Excursion owners doing engine replacements or pre-emission diesel restorations, a clean used 7.3 is by far the best path back on the road.
| INCLUDED | Long block: block, crankshaft, rods, pistons, camshaft, heads, valve train, oil pan, valve covers. Turbocharger when present on donor unit. HPOP when present on donor unit. |
|---|---|
| NOT INCLUDED | Injectors, glow plugs, fuel rails, intake manifold, exhaust manifolds, ECU, harness, alternator, starter, A/C compressor, power steering pump, fan clutch, flexplate. |
| Fluids | Drained before shipping. Refill with diesel-rated 15W-40 motor oil meeting Ford spec. Fill HPOP reservoir before first crank. |
| Core Note | No core charge. You are not required to return your old engine. |
The Ford 7.3 Powerstroke was a direct fit in the following vehicles:
| Ford F-250 Super Duty | 1994 to 2003 |
|---|---|
| Ford F-350 Super Duty | 1994 to 2003 |
| Ford F-450 Super Duty | 1999 to 2003 |
| Ford F-550 Super Duty | 1999 to 2003 |
| Ford Excursion | 2000 to 2003 |
| Ford E-250 Econoline Van | 1995 to 2003 |
| Ford E-350 Econoline Van | 1995 to 2003 |
| Ford E-450 Econoline Cutaway | 1999 to 2003 |
| Ford F-Series Chassis Cab | 1994 to 2003 |
Transmission pairings: ZF S5-42 and ZF S6-650 manual, E4OD automatic (1994 to 1998), 4R100 automatic (1999 to 2003). Tell us your transmission so we confirm the correct flexplate or flywheel pattern at order.
Not sure if this fits? Call (240) 301-0095 with your year, make, model, transmission, and current engine. Our team verifies fitment for every order before it ships, including correct turbo type, injector generation, and bell-housing pattern.
Every used 7.3 Powerstroke we ship goes through this process:
Mileage varies by donor unit. Where we have a verified mileage figure, it is shared. Where mileage cannot be confirmed, we disclose that openly before payment. Full inspection notes are available on request.
| Engine Family | Ford / Navistar T444E |
|---|---|
| Configuration | V8 OHV | 2 valves per cylinder |
| Displacement | 7.3L (444 cu in) |
| Bore X Stroke | 4.11 in x 4.18 in |
| Compression Ratio | 17.5:1 |
| Aspiration | Turbocharged (1994.5 onward) |
| Fuel System | HEUI Direct Injection |
| Fuel Type | Diesel |
| Cooling System | Liquid cooled |
| Electrical System | 12 volt |
| Production Years | 1994 to 2003 |
| Horsepower | 210 to 275 hp by year and calibration |
| Torque | 425 to 550 lb-ft by year and calibration |
| Engine Weight | Approximately 920 lbs dry |
| Condition | Used OEM | compression tested and inspected |
Bought a 7.3 to replace the cracked block in my F-350 work truck. Vaz tested compression on all 8 cylinders and shared the numbers before I paid. Engine arrived crated, fluids drained, exactly as described. Three weeks later it is hauling my dump trailer like nothing ever happened. Saved me about $4,000 over a reman.
Got a 7.3 for my Excursion family hauler. They confirmed the year, turbo, and HPOP condition before shipping. Light seep at the rear main was disclosed up front and I replaced the seal during install. Engine fired on the second crank and pulls strong. Honest sellers, will buy again.
Every used 7.3 Powerstroke Engine For Sale sold by Vaz Auto Solutions is covered by a 15 day replacement warranty from the date of delivery.
To make a claim, contact us within 15 days of delivery at (240) 301-0095 or info@vazautosolutions.com.
