The 2009 Acura TSX comes equipped with a naturally aspirated 2.4-liter inline-4 cylinder engine designated as the K24A2. This DOHC i-VTEC engine produces 201 horsepower at 7,000 RPM and 172 lb-ft of torque at 4,400 RPM. The engine features Honda’s Variable Valve Timing and Lift Electronic Control (VTEC) system, which optimizes performance and fuel efficiency across the RPM range. It’s paired with either a 5-speed automatic transmission or 6-speed manual transmission. The K24A2 is known for its smooth power delivery, excellent fuel economy achieving up to 30 MPG highway, and relatively robust construction when properly maintained with regular oil changes.

The 2009 Acura TSX shares most parts with the 2004-2008 first-generation TSX models, as 2009 was the final year of this generation. Many engine components, suspension parts, and interior pieces are directly interchangeable across these years. However, there were some mid-cycle updates in 2007-2008 that affected certain electrical components and trim pieces. The 2009-2014 second-generation TSX is largely incompatible due to a complete redesign. Some universal components like brake pads, filters, and fluids may cross-reference, but major components like body panels, engines, and transmissions are not interchangeable between generations. Always verify part numbers when sourcing components.

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 2009 Acura TSX is generally reliable when properly maintained, with many examples reaching 200,000+ miles. The engine’s main strengths include robust internal components, excellent oil circulation, and Honda’s proven VTEC technology. However, it requires diligent maintenance including regular oil changes every 5,000 miles with high-quality oil, timely timing chain tensioner inspection, and proper cooling system maintenance. Common maintenance items include VTC actuator replacement around 100,000 miles and occasional valve adjustments. The engine is sensitive to oil quality and change intervals – neglecting maintenance can lead to timing chain stretch, VTC problems, and premature wear. Overall, it’s a solid, long-lasting engine that rewards careful ownership.