The 2011 Subaru Legacy comes standard with a 2.5-liter naturally aspirated flat-four boxer engine producing 170 horsepower and 170 lb-ft of torque. This SOHC engine features Subaru’s signature horizontally-opposed cylinder layout, providing a lower center of gravity and smoother operation compared to traditional inline engines. The engine utilizes a timing chain rather than a belt, reducing maintenance requirements. It’s paired with either a 6-speed manual transmission or Subaru’s Lineartronic CVT automatic transmission, with standard all-wheel drive across all trim levels.

The 2011 Subaru Legacy shares most parts with the 2010-2014 fifth-generation Legacy models. Engine components, suspension parts, and many body panels interchange directly within this generation. Some electrical components and interior trim may have minor variations between model years. The CVT transmission used in 2010-2012 models differs slightly from 2013-2014 versions. Earlier Legacy generations (2005-2009) have limited compatibility, mainly sharing some engine internals and basic maintenance items. Always verify part numbers and specifications, as mid-cycle refreshes can affect compatibility even within the same generation.

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 naturally aspirated engine in the 2011 Legacy is generally reliable when properly maintained, though it has some known weaknesses. Regular oil changes every 5,000 miles are crucial, as the engine can be sensitive to oil quality and change intervals. The timing chain system is more durable than timing belts used in earlier models. Head gasket issues, while improved from previous generations, can still occur after 100,000 miles. The engine typically provides 200,000+ miles of service with proper maintenance, making it a solid choice for long-term ownership despite some common issues.