The 2004 Honda Civic comes with a 1.7L SOHC 4-cylinder engine (D17A2) that produces 115 horsepower and 110 lb-ft of torque. This naturally aspirated engine features Honda’s VTEC variable valve timing system and is known for excellent fuel economy, typically achieving 32-38 mpg combined. The engine uses a timing belt that should be replaced every 105,000 miles along with the water pump. It requires regular oil changes every 5,000 miles and runs on regular 87-octane gasoline. While not the most powerful engine Honda offered, it provides adequate performance for daily driving and has proven to be relatively reliable when properly maintained.

The 2004 Honda Civic shares most parts with the 2001-2005 seventh generation Civic models. Engine components, transmission parts, suspension pieces, and most body panels interchange across these years. However, there were some mid-cycle updates in 2004, so earlier years may have slight differences in certain electrical components and interior trim pieces. The 1.7L engine was used from 2001-2005, making engine parts highly interchangeable. Some parts may also fit 2006-2011 models, but significant design changes occurred with the eighth generation, so compatibility should be verified. Always check part numbers when possible, as Honda made running changes throughout production that can affect fitment even within the same model year.

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 1.7L D17A2 engine in the 2004 Civic is generally reliable when properly maintained, though not Honda’s strongest engine design. With regular oil changes every 5,000 miles and timely timing belt replacement at 105,000 miles, these engines commonly reach 200,000+ miles. The main weakness is the head gasket, which can fail if the engine overheats or cooling system maintenance is neglected. The VTEC system is simpler than later designs and rarely causes problems. Oil consumption can increase with age, so regular monitoring is important. Overall, it’s a dependable engine for daily transportation, but requires more attention to maintenance than Honda’s newer designs to achieve maximum longevity.