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Is the Subaru Legacy a 4 or 6 cylinder?

The Subaru Legacy’s modern lineup uses a four-cylinder engine, while older generations offered six-cylinder options. Here’s a concise, up-to-date look at what powers today’s Legacy and how engine choices have evolved over time.


Current engine configuration


The latest Legacy models rely on a 2.5-liter flat-four (boxer) engine. This four-cylinder setup is paired with Subaru’s all-wheel-drive system and remains the sole engine choice in the current lineup, reflecting a focus on efficiency and balanced performance.


For buyers, this configuration typically translates to solid fuel economy, straightforward maintenance, and standard AWD, which is a hallmark of Subaru’s design philosophy.


Historical engine options


Over its history, the Legacy has been offered with both four- and six-cylinder engines. The following summarizes the main configurations that appeared across different generations.


Below is a snapshot of the main engine options used in various Legacy generations:



  • Current generation: 2.5-liter flat-4 (boxer) engine in standard models.

  • Earlier generations: six-cylinder boxer engines (typically 3.0L or 3.6L) were available on select trims/years.


In practice, older Legacy years provided more powerful six-cylinder power for enthusiasts, while today’s lineup sticks with the four-cylinder setup to emphasize efficiency and reliability.


Generational snapshots


Across different model years, the Legacy’s engine choices varied by market and trim. The shift to an all-four lineup in recent generations aligns with broader industry trends toward better fuel economy and lower emissions, while still delivering the practical all-wheel-drive performance Subaru is known for.


What this means for buyers


For contemporary buyers, the Legacy’s four-cylinder configuration offers favorable fuel economy, reduced maintenance costs, and consistent AWD performance. If you’re seeking higher horsepower from older models, you would have needed to consider the six-cylinder variants that were offered in certain years, but these are no longer part of the current lineup.


Summary


The Subaru Legacy is currently a four-cylinder vehicle. While six-cylinder boxer engines were available in some older generations, the modern Legacy lineup employs only a four-cylinder configuration.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.