What is the spark plug gap on a 5.9 engine?

The spark plug gap for a 5.9-liter engine, commonly found in vehicles like the Dodge Ram, typically ranges from 0.035 to 0.045 inches (0.89 to 1.14 mm). However, it’s essential to consult the owner's manual or service guide for the specific model year, as the recommended gap can vary based on engine specifications and modifications. Proper gap adjustment is crucial for optimal engine performance and fuel efficiency.