The 2004 Honda Accord V6 is equipped with Honda’s 3.0L SOHC VTEC V6 engine, designated as the J30A4. This naturally aspirated engine produces 240 horsepower at 6,250 RPM and 212 lb-ft of torque at 5,000 RPM. The engine features Honda’s Variable Valve Timing and Lift Electronic Control (VTEC) system on the intake valves only, along with a single overhead cam design with 4 valves per cylinder. This powerplant was paired exclusively with a 5-speed automatic transmission and provided strong acceleration while maintaining reasonable fuel economy for its class, rated at approximately 21 city/30 highway MPG.

The 2004 Honda Accord shares most parts with the 2003-2007 seventh-generation Accord models. Engine components from the 3.0L V6 are interchangeable across all these years, including the cylinder heads, intake manifold, and most sensors. Body panels, interior components, and suspension parts are generally compatible within this generation. However, there were minor updates in 2005 and 2006 that affected some electrical components and trim pieces. The transmission is compatible across 2003-2007 V6 models, though early 2003 units may have different internal components. Always verify part numbers when sourcing critical components like airbags, engine management sensors, and emission control parts.

Parts availability changes daily. Call us at (603) 392-7313 or visit our online shop to check current inventory from this specific vehicle. If we have sold a part you need, our Parts Broker service can source it from our network of partner yards nationwide.

Yes! We ship parts from this vehicle and our entire inventory nationwide. Most orders ship within 1-2 business days via FedEx or freight carriers for larger components like engines and transmissions. Call (603) 392-7313 for a shipping quote on any part.

The J30A4 3.0L V6 engine is generally reliable when properly maintained, with many examples exceeding 200,000 miles. The engine itself is robust, but requires diligent timing belt service every 105,000 miles as this is an interference engine that will suffer catastrophic damage if the belt breaks. Oil changes every 5,000 miles are crucial, and the VTEC system requires clean oil to function properly. Common maintenance items include the timing belt tensioner, water pump during timing belt service, and valve cover gaskets around 150,000 miles. The engine’s main weakness is its pairing with the problematic 5-speed automatic transmission, which often fails before the engine shows significant wear.