The 2017 Subaru Legacy comes standard with a 2.5-liter naturally aspirated flat-four engine, designated as the FB25. This horizontally-opposed boxer engine produces 175 horsepower and 174 lb-ft of torque. It features direct injection technology and is paired with Subaru’s Lineartronic CVT transmission. The boxer configuration provides a lower center of gravity for better handling and balance. This engine requires regular oil changes every 6,000 miles and premium unleaded fuel is recommended but not required. The FB25 is known for its smooth operation and decent fuel economy, achieving approximately 25 city/34 highway MPG.

The 2017 Subaru Legacy shares most parts with the 2015-2019 sixth-generation Legacy models. Major components like the engine, transmission, suspension, and body panels are largely interchangeable within this generation. Some interior trim pieces and infotainment components may vary by model year due to mid-cycle updates. The 2018-2019 models received minor updates but maintain compatibility for most mechanical parts. Earlier generations (2010-2014) have different body styles and many non-compatible parts, while 2020+ models represent a completely redesigned seventh generation with limited parts interchange. Always verify specific part numbers and VIN compatibility before purchasing.

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 FB25 2.5L engine in the 2017 Legacy is generally reliable but has some known issues. It’s more dependable than previous EJ-series engines regarding head gasket failures, though external leaks can still occur at higher mileage. The main concern is oil consumption in some units, which can lead to engine damage if not monitored closely. Regular maintenance is crucial – check oil levels monthly and change oil every 6,000 miles maximum. The timing chain design eliminates belt replacement concerns, and the engine typically runs smoothly for 150,000+ miles with proper care. Avoid extended oil change intervals and address any oil consumption issues promptly to maximize longevity.