It's neither a 250 nor a 350. The Ford Excursion was built on the F-250 Super Duty chassis and sold as its own model from 1999 to 2005.
What the Excursion was and why the 250/350 question arises
Produced from 1999 to 2005, the Ford Excursion was Ford's flagship large SUV, designed to carry up to eight passengers and tow heavy loads. It sits on Ford's heavy-duty truck platform, but it isn’t marketed as an F-250 or an F-350. The 250 and 350 designations pertain to pickups in Ford’s lineup, while the Excursion is categorized separately as a full-size SUV with its own model name.
Platform and design notes
Technically, the Excursion shares its underlying frame with Ford’s F-250 Super Duty pickups, not with the F-350. This gave the SUV a sturdy, heavy-duty foundation suitable for its size and towing capability, while maintaining a distinct SUV body. Factory badges for the Excursion itself do not include a 250 or 350 suffix; the vehicle is identified simply as Excursion.
In practice, the 250/350 labels are most relevant to pickups. When evaluating or shopping for an Excursion, you’ll find references to the model as an Excursion, with familiarity to the F-Series family in its chassis lineage but without a corresponding badge that reads “Excursion 250” or “Excursion 350.”
During its production years, the Excursion offered a range of powertrains suitable for its size, including gasoline V8 and V10 options, and at least one diesel option in some configurations. Acknowledging the era’s technology helps explain why some buyers value the Excursion for towing and passenger capacity, even as its badge remains singularly “Excursion.”
Key facts about the Excursion's chassis
- Based on the Ford F-250 Super Duty chassis, not the F-350
- Long-wheelbase, purpose-built SUV with a heavy-duty frame
- Produced 1999–2005 and marketed strictly as the Excursion
These points summarize why the Excursion isn’t branded as a 250 or 350, even though it shares a family lineage with Ford’s heavy-duty pickups.
Summary
The Ford Excursion sits outside the 250/350 labeling scheme. It is a large, standalone SUV built on the F-250 Super Duty chassis, produced from 1999 to 2005. If you encounter a used Excursion, expect to see the Excursion name on the badge, not a 250 or 350 designation, reflecting its unique place in Ford’s SUV lineup.