The 2008 Subaru Impreza comes with a 2.5-liter naturally aspirated SOHC flat-four engine, producing 173 horsepower and 166 lb-ft of torque. This horizontally opposed boxer engine features single overhead camshafts and multi-port fuel injection. The engine is paired with either a 5-speed manual or 4-speed automatic transmission and Subaru’s standard all-wheel drive system. This powerplant is known for its low center of gravity, smooth operation, and excellent balance, though it requires regular maintenance including timing belt replacement every 105,000 miles and is susceptible to head gasket issues in higher mileage vehicles.

The 2008 Subaru Impreza shares most parts with the 2008-2011 model years, as this represents the third generation Impreza platform. Engine components from the 2.5L SOHC motor interchange with 2008-2011 Impreza, Forester, and Legacy models using the same engine code. Body panels and interior components are specific to 2008-2011 Impreza sedan and wagon models. Suspension components may interchange with 2008-2014 Impreza models with some variations. Transmission parts are compatible across 2008-2011 years for both manual and automatic variants. Always verify part numbers and specifications before purchasing, as mid-year changes and trim level differences can affect compatibility.

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 2.5L SOHC engine in the 2008 Impreza is moderately reliable but has known weak points. The most significant issue is head gasket failure, typically occurring between 80,000-120,000 miles, which can be expensive to repair. However, with proper maintenance including regular oil changes, timing belt replacement at 105,000-mile intervals, and coolant system maintenance, these engines can reach 200,000+ miles. The timing belt is interference-type, so replacement is critical to prevent valve damage. Regular monitoring of coolant levels and external leaks can help catch head gasket issues early. Overall, expect average reliability with higher maintenance costs compared to some competitors.