The 2004 Acura TSX comes equipped with a 2.4-liter DOHC i-VTEC 4-cylinder engine (K24A2) that produces 200 horsepower at 6,800 rpm and 166 lb-ft of torque at 4,500 rpm. This naturally aspirated engine features Honda’s Variable Valve Timing and Lift Electronic Control (VTEC) system, which optimizes performance across the RPM range. The engine is known for its smooth operation, responsive throttle, and ability to rev freely to its 7,000 rpm redline. It requires premium unleaded fuel for optimal performance and achieves EPA ratings of approximately 23 mpg city and 31 mpg highway with the manual transmission.

The 2004 Acura TSX shares most parts with the 2004-2008 first-generation TSX models, as they use the same platform and powertrain. The 2.4L K24A2 engine components are largely interchangeable throughout this generation, though minor updates occurred in later years. Body panels, interior components, and most mechanical parts from 2004-2008 TSX models will fit. However, 2006-2008 models received some updates including revised headlights and minor interior changes. The second-generation TSX (2009+) uses different body panels and some mechanical components, though some engine internals may still be compatible. Always verify part numbers when sourcing components from different model years.

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 K24A2 2.4L engine in the 2004 TSX is generally reliable and can easily exceed 200,000 miles with proper maintenance. The VTEC system is robust, and the engine responds well to regular oil changes using the recommended 5W-30 oil. Key maintenance items include timing chain tensioner inspection around 100,000 miles and regular valve adjustments every 110,000 miles. The engine is not an interference design, so timing chain failure won’t cause valve damage. Common wear items include the drive belt tensioner and power steering pump. Using premium fuel as recommended helps prevent carbon buildup and maintains optimal performance throughout the engine’s life.