Two engines were offered: a 2.4-liter inline-4 and a 3.0-liter V6, delivering roughly 160–166 hp for the four-cylinder and about 240 hp for the V6. The exact choice depended on trim and market.
Engine options available in 2004
The 2004 Accord in the United States was available with two main engine configurations. Below are the core details for each option to help distinguish their characteristics and performance profiles.
2.4-liter inline-4 (K-series) — DOHC with i-VTEC, commonly referenced as the 2.4 L i-4. This engine produced roughly 160 to 166 horsepower and about 160 to 164 lb-ft of torque, depending on the exact model year and transmission pairing.
3.0-liter V6 (J-series) — DOHC V6 with i-VTEC on many variants, delivering around 240 horsepower and approximately 210–212 lb-ft of torque, providing stronger acceleration and highway performance.
These two engines represented the main powertrain choices across the 2004 Accord lineup, with the 4-cylinder emphasizing efficiency and the V6 emphasizing performance. Transmission options varied by trim, including manual and automatic configurations for the 4-cylinder, and typically automatic for the V6.
Technical details and ownership considerations
4-cylinder details
The 2.4-liter inline-4 in the 2004 Accord is part of Honda’s reliable K-series family. It features dual overhead camshafts and VTEC technology to optimize both fuel economy and mid-range power. Routine maintenance focuses on timing belt/chain considerations, valve clearance, and regular fluid changes to maintain efficiency and longevity.
V6 details
The 3.0-liter V6 is part of Honda’s J-series, known for smooth power delivery and strong low- to mid-range torque. Maintenance often centers on the cooling system, intake manifold, and spark plug service intervals to sustain reliable performance. The V6 model generally paired with a 5-speed automatic, with some trims offering different transmission options.
Summary
In summary, the 2004 Honda Accord offered two engine families: a 2.4-liter inline-4 and a 3.0-liter V6. The 4-cylinder provided adequate daily driveability with better fuel economy, while the V6 delivered stronger acceleration and peak performance. Trim and market dictated the exact engine-tuning and transmission pairing, but both options remained center-stage powertrains for that model year.