The 1998 Dodge Ram 1500 with the 5.9 Magnum V8 is rated at 245 horsepower, with about 335 lb-ft of torque, according to SAE net specifications used on factory data sheets.
Engine details
The 5.9 Magnum is Chrysler’s 360 cubic inch (5.9-liter) V8, part of the Magnum family that powered many Dodge trucks in the late 1990s and early 2000s. In 1998, this engine delivered solid mid-range torque and reliable power for towing and hauling that defined the Ram 1500’s capability.
Understanding horsepower ratings
Automotive horsepower numbers are reported in different ways. SAE net horsepower (used on modern consumer specs) accounts for accessories and emissions equipment, and typically yields lower numbers than the older SAE gross rating. The 245 hp figure for the 1998 5.9 Magnum reflects SAE net ratings common to that era and configuration.
Performance context
With 335 lb-ft of torque, the 5.9 Magnum provides strong pulling power for payloads in the Ram 1500’s class. Real-world acceleration and towing depend on gearing, the transmission (often a four-speed automatic in 1998 models), and drivetrain setup, not horsepower alone.
Additional notes
While the 5.9 Magnum’s power figure is consistent across many 1997–1999 Ram 1500 models, small variations can occur due to emissions equipment, regional specifications, or vehicle configuration. Checking the original window sticker or VIN-specific build data can confirm the exact rating for a given truck.
Summary
For a 1998 Ram 1500 with the 5.9 Magnum V8, expect about 245 horsepower and 335 lb-ft of torque, measured as SAE net horsepower. These figures reflect the late-1990s rating standards and the truck’s overall gearing and drivetrain configuration.