The 2007 Mazda3 uses two gasoline inline-4 engines from Mazda’s MZR family: a 2.0-liter and a 2.3-liter.
In detail, the 2.0-liter engine powered the base i models, delivering about 148 horsepower, while the 2.3-liter engine powered the sportier s models with about 156 horsepower. Both engines are part of the MZR line and could be paired with either a 5-speed manual or a 4-speed automatic transmission, depending on trim and options.
Engine options
The following two engines were offered for the 2007 Mazda3. Each entry lists its displacement and typical performance notes.
- 2.0-liter MZR I4
- 2.3-liter MZR I4
Both engines belong to Mazda’s MZR family and were commonly paired with either a 5-speed manual or a 4-speed automatic transmission, depending on the car’s trim level and market.
2.0-liter MZR I4
Displacement: 2.0 L; configuration: inline-4; power: 148 hp at about 6,000 rpm; torque: 135 lb-ft at about 4,500 rpm; features: DOHC with variable valve timing; typical transmissions: 5-speed manual or 4-speed automatic.
2.3-liter MZR I4
Displacement: 2.3 L; configuration: inline-4; power: 156 hp at about 6,000 rpm; torque: 150 lb-ft around 4,000 rpm; features: DOHC; typical transmissions: 5-speed manual or 4-speed automatic.
Note: Availability of engine and transmission options can vary by market and trim; always verify the specific vehicle’s configuration.
Summary
The 2007 Mazda3 offered two gasoline inline-4 engines from Mazda’s MZR family—the 2.0-liter for base models and the 2.3-liter for sportier variants—each available with either a manual or automatic transmission depending on the build.