The 2007 Chevrolet Cobalt uses a four‑cylinder Ecotec engine, most commonly a 2.2‑liter inline‑four in base models, with an optional 2.4‑liter inline‑four on higher trims. A V6 was not offered in the Cobalt that year.
In more detail, the 2007 Cobalt lineup was powered by two Ecotec four‑cylinder engines. The engine choice depended on trim level and market, and both engines are part of GM’s Ecotec family, designed for efficiency and compact performance. The exact horsepower varies by transmission and equipment, but the two main configurations are the 2.2L and the 2.4L versions.
Engine options by trim
Below are the engine options commonly found in 2007 Cobalt models. This list explains what you’re likely to encounter when researching or inspecting a 2007 Cobalt.
- 2.2-liter Ecotec inline-four (2.2L I4) — Approximately 140 horsepower with about 150 lb-ft of torque; commonly found in the base and lower‑trim Cobalt models.
- 2.4-liter Ecotec inline-four (2.4L I4) — Approximately 172–173 horsepower with around 160–165 lb-ft of torque; available on higher trims as an upgrade from the base 2.2L.
The two-engine setup reflects Chevrolet’s approach for the 2007 Cobalt: a standard, economical option and a more capable middle option for buyers seeking a bit more power without moving to a performance‑oriented variant.
Cobalt SS variant
The Cobalt lineup also included a performance-oriented SS variant, which used a different powertrain from the standard 2.2L or 2.4L engines. If you’re researching a specific car, check the vehicle’s VIN or engine code to confirm the exact powertrain for that car and year.
Summary
The 2007 Chevy Cobalt is powered by Ecotec four-cylinder engines, with the standard 2.2-liter and an optional 2.4-liter option. There is no V6 offering for this model year, and a high‑performance SS variant used a separate, more powerful engine configuration.