Is Subaru Legacy a 4 or 6 cylinder?
In today’s lineup, the Subaru Legacy uses four-cylinder engines. The current models offer two four-cylinder configurations—a standard 2.5-liter boxer and a turbocharged 2.4-liter variant for higher performance. A six-cylinder option existed in earlier generations but is no longer offered.
Current engine options
Here are the engines that have powered modern Legacy sedans and the brief note on their outputs and availability.
- 2.5-liter flat-4 engine (boxer), naturally aspirated: the standard option in most Legacy trims, producing around 182 horsepower and 176 lb-ft of torque in recent model years; favored for efficiency and reliability.
- 2.4-liter turbocharged flat-4 engine (boxer), with intercooler: available on higher-performance XT trims, delivering approximately 260 horsepower and 270–277 lb-ft of torque, depending on model year and fuel grade.
- Past option: 3.6-liter flat-6 engine (EZ36): offered in earlier Legacy generations around 2010–2012 as the top-of-the-line 3.6R, delivering about 256 horsepower; no longer offered in current models.
In practical terms, today’s Subaru Legacy is a four-cylinder sedan, with the turbo variant adding notable performance. The 6-cylinder option belongs to a previous generation and is not available now.
Historical context and impact
For decades Subaru has used horizontally opposed engines. The Legacy’s move away from the larger six-cylinder configuration reflected broader market trends toward efficiency and emissions compliance, while still offering a balanced all-wheel-drive platform. The 2.5L option prioritizes economy and daily usability, while the 2.4L turbo option targets drivers seeking stronger acceleration and overtaking power.
What buyers should know
When shopping for a Legacy, check the model year and trim to confirm engine choice, as the turbo variant is typically reserved for upper trims and may require premium gasoline to achieve peak performance. Also consider insurance costs and fuel economy estimates, which vary by engine and load.
Summary
The Subaru Legacy relies on four-cylinder engines in its current lineup, with a turbocharged 2.4-liter option for enhanced performance. A six-cylinder engine once existed in older models but is no longer available. For most buyers, the 2.5-liter engine offers a balance of efficiency and reliability, while the 2.4-liter turbo provides a more spirited drive. Always verify the exact engine and trim for the specific model year you’re considering.
What year was bad for Subaru Legacy?
Years to avoid for the Subaru Legacy include 2010–2014, primarily due to transmission issues and headlight problems, and 2005–2009, which are known for head gasket and other engine-related issues. Other problematic years include 2011 for its headlights and 2018 for infotainment problems.
Subaru Legacy years to avoid
- 2010–2014: These years can have issues with the continuously variable transmission (CVT), which can cause hesitation, shuddering, or stalling. The 2011 model year is also notorious for headlights burning out very quickly.
- 2005–2009: These models can be prone to head gasket failure, especially on the 2.5L engine, leading to coolant and oil leaks. Other problems can include catalytic converter and rear hub failures.
- 2018: This model year has been associated with infotainment system glitches, such as the display freezing or refusing to shut down.
- Other years:
- 2000–2006: Reported issues with faulty oxygen sensors.
- 2011–2012: Have been cited for frequent headlight burnout.
- 2021–2023: Recall issued for a transmission parking rod issue.
- 2023: Recalled for display screen issues and other electronic problems.
Is the Subaru Legacy 4 or 6 cylinder?
Legacy: The Legacy features a 2.5-liter four-cylinder engine, though higher trims offer a 2.4-liter turbocharged variant as an option. BRZ: This model includes a 2.4-liter four-cylinder engine. WRX: The WRX features a 2.4-liter turbocharged engine.
Which Subaru has a 6 cylinder engine?
Subaru models that have featured 6-cylinder engines include the Legacy, Outback, and Tribeca from certain model years, as well as older models like the Alcyone (XT6) and Alcyone SVX. The most recent 6-cylinder models are typically found in the 3.6R versions of the Legacy, Outback, and Tribeca, with the last 6-cylinder engine produced for the 2019 Outback.
| Model | Years with 6-Cylinder Engine |
|---|---|
| Outback | ~2001–2019 |
| Legacy | ~2002–2019 |
| Tribeca | ~2006–2014 |
| Alcyone (XT6 in the U.S.) | 1988–1991 |
| Alcyone SVX | 1991–1996 |
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How many cylinders is a Subaru Legacy?
The 2025 Subaru Legacy features a standard 2.5-liter SUBARU BOXER® 4-cylinder engine or available 2.4-liter turbocharged engine.
