The 2004 Honda Civic comes equipped with a 1.7L SOHC 4-cylinder engine (D17A2). This naturally aspirated engine produces 115 horsepower at 6,100 RPM and 110 lb-ft of torque at 4,500 RPM. It features Honda’s VTEC variable valve timing system and a single overhead cam design. The engine uses a timing belt that requires replacement every 105,000 miles. This powerplant is known for its fuel efficiency, typically achieving 28-32 mpg in city driving and 35-40 mpg on the highway. The D17A2 has an aluminum cylinder head with a cast iron block and uses a distributorless ignition system with individual coil packs.

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 directly within these years. However, there were some mid-cycle updates in 2004, so certain trim pieces and interior components may vary slightly. The 1.7L D17A2 engine was used from 2001-2005, making all engine internals, intake manifolds, and exhaust components compatible. Brake components, wheel bearings, CV joints, and most electrical parts also interchange across all seventh-generation years. Some 2006-2011 eighth-generation parts may fit but require verification due to significant platform changes.

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 is generally reliable when properly maintained, though it has some known weaknesses. The timing belt must be replaced every 105,000 miles as this is an interference engine that can suffer valve damage if the belt breaks. The VTEC solenoid can become clogged around 120,000 miles, causing rough idle and poor performance. Engine mounts tend to fail prematurely due to the engine’s vibration characteristics. Regular oil changes every 5,000 miles are crucial as the engine is sensitive to oil quality. The head gasket is generally durable, but the valve cover gasket commonly leaks after 100,000 miles. Overall, with proper maintenance, these engines can easily reach 200,000+ miles.