The OBS 7.3 Powerstroke: A Classic Diesel Workhorse (1994-1997)

The OBS (Old Body Style) 7.3 Powerstroke was Ford's diesel truck lineup in the mid-1990s. This powerhouse engine was available in the F-250, F-350, and F-Super Duty models and quickly became a favorite among diesel truck enthusiasts. Here are some key things to know about the OBS 7.3 Powerstroke:

Engine Specifications

• Displacement: 7.3L (445 cubic inches)
• Configuration: V8 turbo diesel
• Horsepower: 210 hp @ 3,000 RPM (1994-95 models), 215 hp @ 3,000 RPM (1996-97 models)
• Torque: 425 lb-ft @ 2,000 RPM (1994-95 models), 425 lb-ft @ 2,400 RPM (1996-97 models)

Performance and Capabilities

• Fuel economy: averaging around 18-20 mpg
• Towing capacity: ranging from 8,000 to 15,000 lbs depending on the model and configuration
• Payload capacity: up to 7,500 lbs depending on the model and configuration

Design and Features

• Transmission: 5-speed manual, 4-speed automatic
• Two-wheel drive and four-wheel drive options
• Optional extended cab and crew cab configurations
• Manual locking front hubs for four-wheel drive models
• Standard anti-lock brakes and airbags on driver's side

The OBS 7.3 Powerstroke has become legendary for its durability, reliability, and longevity. The engine, known for its close relation to the legendary Navistar/International T444E engine, earned a reputation for its longevity and ease of maintenance. Many enthusiasts still hold the OBS 7.3 Powerstroke in high regard for its great fuel economy, impressive power and torque, and the ability to be tuned and modified to produce even more performance.

Today, these classic diesel workhorses are highly sought after by diesel truck enthusiasts and collectors alike. They remain popular for their rugged design, excellent towing and payload capacities, and the unmistakable diesel growl. The OBS 7.3 Powerstroke stands the test of time as a classic diesel truck that still has a special place in the hearts of many diesel enthusiasts.