The 2004 Civic EX is equipped with a 1.7-liter inline-4 i-VTEC engine (Honda code D17A2), producing about 127 horsepower and 114 lb-ft of torque. It was offered with either a 5-speed manual or a 4-speed automatic transmission depending on the configuration.
Context and background
The Civic’s seventh generation (2001–2005 in the United States) positioned the EX as a higher-trim option with a more capable engine than the base models. The 1.7-liter i-VTEC powerplant was designed to balance everyday usability with a more engaging drive than the entry-level variants.
Within the Civic lineup, the high-performance Si model used a larger engine, while the EX focused on a practical blend of efficiency and responsive driving for daily use and highway cruising.
Engine specifications
Technical details for the engine powering the 2004 Civic EX are listed below:
- Engine code: D17A2
- Displacement: 1,699 cc (about 1.7 L)
- Configuration and valvetrain: Inline-4, DOHC with i-VTEC
- Power output: 127 hp at 6,300 rpm
- Torque: 114 lb-ft at 4,900 rpm
- Induction: Naturally aspirated
- Fuel delivery: Multi-point fuel injection
- Transmission options: 5-speed manual or 4-speed automatic
These specifications define the EX’s driving character: a balanced blend of everyday usability and responsive performance, with the choice between a manual for enthusiasts or an automatic for convenience.
Summary
In brief, the 2004 Honda Civic EX runs on Honda’s 1.7-liter inline-4 i-VTEC engine (D17A2), delivering 127 hp and 114 lb-ft of torque, and it offers a 5-speed manual or 4-speed automatic transmission to match the owner’s preference.


