When did Subaru stop making the 3.6 engine?
The 3.6-liter Subaru flat-six engine was phased out of production by 2019 in most markets. Subaru’s EZ36D, once used in several mid-size models, has since been superseded by smaller, more efficient powerplants. This article traces the engine’s lifecycle and why it disappeared from new Subaru cars.
Understanding the EZ36D: Subaru’s 3.6-liter boxer
The 3.6-liter engine in question is Subaru’s EZ36D, a horizontally opposed six-cylinder (flat-six) powerplant. Introduced as a successor to the EZ30D, it delivered roughly 256 horsepower and around 247 pound-feet of torque in US-spec configurations. The engine was most commonly found in higher-end trims of the Legacy and Outback, and in the Tribeca during its production run. Its smooth power delivery and refinement made it a hallmark of Subaru’s larger-engine lineup for a time.
Timeline: key milestones in the 3.6’s lifecycle
Below is a concise chronology of when Subaru introduced the engine, maintained it, and ultimately stopped offering it in most markets. The list highlights the broad pattern across regions, recognizing that exact model availability varied by country and by model year.
- 2007–2008: Subaru introduces the EZ36D as the replacement for the EZ30D, with early 3.6-liter applications appearing in models such as the Legacy, Outback, and Tribeca for the 2008 model year.
- 2010s: The 3.6L remained available in select trims (notably “3.6R” variants) across the Legacy and Outback lines and in the Tribeca in some markets, while many other models shifted toward smaller engines for efficiency.
- 2019 model year: In North America, the 3.6L EZ36D is effectively discontinued from new-subject vehicles; the 2020 model year lineup does not offer a 3.6L option.
- Late 2010s (global context): Subaru gradually ceased EZ36D production in most regions, aligning with a broader industry move away from larger naturally-aspirated six-cylinders toward smaller, turbocharged or efficient four-cylinders.
Concluding paragraph: By the end of the 2019 model year in many markets, Subaru had largely removed the 3.6-liter engine from its fresh-product lineup, shifting focus to smaller-displacement engines and turbocharged options for higher performance variants.
What replaced the 3.6L engine in Subaru’s lineup
As Subaru restructured its powertrain lineup, the company leaned on smaller, more efficient options and newer turbocharged configurations. The main replacements include:
- A modern 2.5-liter boxer four-cylinder became the standard engine in most models, offering better fuel economy and ample daily usability.
- A 2.4-liter turbocharged flat-four (FA24) was introduced for higher-performance variants and certain models, providing stronger power without the weight penalty of a six-cylinder.
Concluding paragraph: The shift away from the 3.6L was part of Subaru’s broader strategy to improve efficiency and meet evolving emissions standards, while still offering capable powertrains across its lineup.
What to know if you’re shopping for a used 3.6-equipped Subaru
If you’re evaluating a used vehicle with the 3.6-liter engine, keep these points in mind:
- Availability: 3.6-powered models are now rare on dealer lots and are typically found only in older inventories or higher-mileage examples.
- Maintenance: Parts and service for the EZ36D remain available, but you may face higher repair costs or longer lead times for out-of-production components compared with newer engines.
- Value: Because the engine is no longer current, 3.6-equipped Subarus often trade at a premium for enthusiasts or may require more careful inspection for wear consistent with age.
Concluding paragraph: If you own a 3.6L Subaru or are considering one, a thorough pre-purchase inspection focusing on cooling, timing components, and overall heat management is advisable, given the age of the platform.
Summary
Subaru’s 3.6-liter EZ36D engine was effectively discontinued after the 2019 model year in most markets, as the company shifted toward more efficient four-cylinder options and turbocharged alternatives. While the 3.6L remains a part of Subaru’s history—loved by fans for its smoothness and power—it is no longer produced for new cars. For buyers and owners, the practical considerations now center on maintenance of aging engines and weighing the benefits of newer, more efficient powertrains in Subaru’s current lineup.
Is the Subaru 3.6 engine any good?
The 3.6 has adequate power that it's a non-issue but you'll never confuse it with a fast vehicle either... It's just the bare minimum to drive around and not want to bang your head into the steering wheel. The EZ36 is generally regarded as one of the best engines Subaru have produced.
What is the best year for the Subaru Outback 3.6 R?
The best years for the Subaru Outback 3.6R are generally considered to be 2013–2014 or 2017–2019. The 2013–2014 models are the final years with the 5EAT automatic transmission and are well-regarded, while the 2017–2019 model years represent the end of the 3.6R engine and have positive reviews for reliability and features.
2013–2014 models
- Transmission: These are the last years with the 5EAT 5-speed automatic transmission, which is often considered more reliable than the later CVT (Continuously Variable Transmission).
- Features: They are part of the generation that received a facelift, offering more modern features.
2017–2019 models
- Engine: These are the last model years to feature the 3.6R engine, as it was discontinued after 2019.
- Reliability: Many owners report high mileage and few issues when properly maintained, with some owners praising their long-term durability.
- Features: These models are well-regarded for their balance of features and performance.
What to consider
- Transmission: If you want to avoid the CVT, stick to models from 2014 and earlier. The 5EAT transmission is a key advantage of these years.
- Rust: Subarus in the rust belt are susceptible to rust issues, so inspect the frame and subframes carefully regardless of the year.
When did Subaru stop the 3.6 engine?
Starting with the 2020 model year, the six-cylinder EZ36 was dropped as the uplevel engine option for Subaru Legacy and Outback automobiles and instead the premium engine offered was the turbocharged four-cylinder FA24F, which was previously introduced for the 2019 model year as the sole engine option for the Subaru ...
Does Subaru still offer a 6 cylinder engine?
Today, Subaru's flat-six engine has come and gone, and they only make four-cylinder gas engines.
