Two engines were offered for the 2003 Jeep Liberty: a 2.4-liter inline-four and a 3.7-liter V6.
Engine options for the 2003 Liberty
The Liberty’s 2003 lineup included a smaller efficiency engine and a larger, more capable V6. The following details summarize the two choices commonly found in U.S.-spec models.
- 2.4-liter inline-four (2.4 L I4) — about 143 horsepower and 154 lb-ft of torque. This engine is part of Chrysler’s World Engine family and was typically paired with a 4-speed automatic transmission, with some configurations offering a 5-speed manual.
- 3.7-liter V6 (PowerTech) — about 210 horsepower and 235 lb-ft of torque. This engine provided stronger performance for highway driving and towing, usually paired with a 4-speed automatic, with manual options available on some variants.
In brief, the 2003 Liberty could be powered by either the economical 2.4L four-cylinder or the more powerful 3.7L V6, depending on trim and market.
Notes on availability
Engine availability varied by trim level and regional market. Some trims or regions may have emphasized one option over the other, and minor differences in horsepower or torque can appear due to emissions tuning or model year updates.
Summary
The 2003 Jeep Liberty offered two engine choices: a 2.4-liter inline-four delivering roughly 143 hp and 154 lb-ft of torque, and a 3.7-liter V6 delivering roughly 210 hp and 235 lb-ft of torque. The choice affected performance, towing capability, and transmission pairing.