Where to Buy Terminator T500 Hpop 7.3 Powerstroke
7.3L Power Stroke Diesel
7.3L Power Stroke Specs & Information
The 7.3L Power Stroke diesel was developed as a the replacement for the aging 7.3L IDI. Although the engines share identical displacements, the designs are of completely different nature and it would be incorrect to suggest that the 7.3L Power Stroke was an evolution of the IDI engine family. The Power Stroke is a turbocharged, direct injection diesel engine produced by International Navistar. The "Power Stroke" trademark belongs to Ford Motor Company, and therefore you will only find the 7.3 "Power Stroke" in Ford applications. The engine is based on International's model T444E engine, which is identical save for some slight variances specific to Ford's applications.
The 7.3L Power Stroke turbodiesel is characterized by its HEUI (hydraulic electric unit injector) injection system, which uses highly pressurized engine oil as a medium for creating fuel pressure directly in the injector body, as a opposed to a system requiring a typical injector pump. In lieu of an injection pump, the 7.3L Power Stroke utilizes a high pressure oil pump (HPOP) and a low pressure lift pump in order to create fuel pressures up to 21,000 psi. In comparison to the prior mechanical injection system, the transition to HEUI promised improved performance, lower emissions, and better fuel economy stemming from increased fuel atomization and greater control over injection events.
The popularity of Ford's International powered F-Series pickups is distinguishable in its production numbers, which greatly exceeded that of any competing manufacturer's diesel sales. By 1999, 1 million Power Stroke equipped trucks had been delivered to dealerships. As demand soared following Ford's introduction of the Super Duty platform, the 2 millionth 7.3L Power Stroke equipped F-Series rolled off the assembly line in 2002. The 7.3L Power Stroke has earned praise as one of the most popular engines offered in a pickup truck, its name synonymous with reliability and longevity.
A greater demand for fuel economy and significantly lower emissions ultimately led to the retirement of the 7.3L during the 2003 model year. For the 2003 MY, the 7.3L Power Stroke was offered alongside the new, smaller 6.0L Power Stroke. By the beginning of the 2004 MY, the 6.0L Power Stroke had completely replaced the 7.3L.
7.3L Power Stroke Specs
| Engine: | 7.3L Power Stroke diesel V-8 | |
| B10 Life: | 200,000 miles (~320,000 km) | |
| B50 Life: | 350,000 miles (~560,000 km) | |
| Years Produced: | 1994.5 - 2003 model years | |
| Displacement: | 7.3 liters, 444 cubic inches | |
| Block/Head Material: | Cast iron block, cast iron cylinder heads | |
| Compression Ratio: | 17.5 : 1 | |
| Firing Order: | 1-2-7-3-4-5-6-8 | |
| Bore: | 4.11 in (104.4 mm) | |
| Stroke: | 4.18 in (106.2 mm) | |
| Aspiration: | Single turbocharger, wastegated, intercooler introduced for 1999 model year | |
| 1994 - 1997: | Garrett TP38 | |
| 1998 - 2003: | Garrett GTP38 (wastegated) | |
| Injection: | Direct injection, HEUI (hydraulic electronic unit injection). See injector code breakdown below. | |
| Valvetrain: | OHV, 2 valves per cylinder, hydraulic lifters (no valve adjustment necessary) | |
| Oil Capacity*: | 15 quarts w/ filter | |
| Engine Weight: | Approx. 920 lbs dry | |
| Peak Horsepower: | • 210 hp @ 3,000 rpm (intro horsepower rating, 1994 MY) | |
| Peak Torque: | • 425 lb-ft @ 2,000 rpm (intro torque rating, 1994 MY) | |
| Engine Dimensions: | Length: | 34" (approx) |
| Width: | 32" (approx) | |
| Height: | 38" (approx) | |
*Some engines may not drain completely during oil change - advise filling with 13 quarts, check oil level, and add as necessary until crankcase is full. After starting and running the engine, recheck oil level and add as necessary. The high pressure oil pump reservoir retains some engine oil.
7.3L Power Stroke Horsepower/Torque Curves
1994 to 1998 model year horsepower/torque curves with 7.3L Power Stroke & 7.3L IDI comparison
1999 to 2003 model year horsepower/torque curves, 7.3L Power Stroke diesel
International's T444E was employed in applications exceeding 60,000 lbs GVWR, paying homage to the fact that the 7.3L Power Stroke is indeed a medium duty rated engine despite its application low GVW, class 3 and 4 pickups. Though gravely outdated by today's standards, the 7.3L Power Stroke was considered an innovative leader of the industry through the 90's and into the early 2000's. The engines have a B50 life of 350,000 miles, which has proven to be a rather conservative rating.
7.3L Power Stroke Transmission Options
• ZF S5-47 5 speed manual transmission - available 1994 to 1998 model years.
• Ford E4OD 4 speed automatic transmission - available 1994 to 1998 model years.
• ZF S6-650 6 speed manual transmission - available 1999 to 2003 model years.
• Ford 4R110 4 speed automatic transmission - available 1999 to 2003 model years.
7.3L Power Stroke Serial Number Location
The serial number of a 7.3L Power Stroke diesel is located on the rear oil cooler pad (driver's side rear of engine, the "pad" is where the oil filter assembly mounts to the engine block). 1998+ engines also have an engine serial number label on the driver side valve cover. The first 2 digits of the serial number are "7.3", followed by a 4 digit manufacturing designation, and then a 6 digit build number. The sequential build number may be useful in learning more about what components your engine is equipped with, as some items were changed/upgraded throughout the engine's life.
7.3L Power Stroke Injector Codes
All 7.3L Power Stroke engines use "A" code injectors, which feature a 16.0 mm intensifier piston and 6.0 mm plunger. The following chart displays the various injector codes and types used for each model year. When replacing a fuel injector, the correct injector must be used - do not mix and match. A single shot AA injector cannot be used in an engine calibrated for an AD split shot injector and visa versa.
| Application(s) | Injector Code | Type | Max Flowrate | Notes |
| 1994 - 1996 (all) | AA | single shot | 98 cc | 1997 model year engines designed to meet California emissions standards (CARB certification) feature AB split shot injectors, NOT AA. |
| 1997 CARB | AB | split shot | 130 cc | 1997 model year engines sold outside California featured AA single shot injectors, NOT AB. |
| International T444E | AC | single shot | 160 cc | AC injectors are similar to AB injectors, but are a single shot design with a higher flowrate. They are found in International T444E engines, but were never used in Power Stroke models. |
| Late 1999 - 2003 | AD | split shot | 140 cc | Used in all 1999+ 7.3L Power Stroke and International T444E engines. |
| Late 1999 - 2003 | AE/AF | split shot | 140 cc | Based on an AD injector, used in the number 8 cylinder from the factory. This is a "long lead" injector designed to address cackle from the number 8 cylinder caused by a sudden drop in fuel and oil pressure since cylinder 8 fires immediately after cylinder 6, which is on the same bank and consumes fuel/oil pressure during its firing sequence (all other injection events occur sequentially on opposing sides of the engine). |
Where to Buy Terminator T500 Hpop 7.3 Powerstroke
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