How much does it cost to replace a head gasket on a 2011 Subaru Outback?

Most 2011 Outbacks require head gasket replacement at a typical price range of about $1,500 to $3,500, depending on the engine variant and how much work is needed beyond the gasket itself.

The 2011 Subaru Outback offered both a 2.5-liter four-cylinder engine and, in some trims, a larger 3.6-liter six. The cost of replacing a head gasket can vary significantly based on which engine you have, the extent of engine damage found during disassembly, and the labor rates in your region. This guide breaks down what to expect, the factors that influence price, and tips to manage the bill.

Cost components and typical ranges

The following list explains the major cost categories you’ll see in a head gasket replacement for a 2011 Outback.

• Labor: Replacing a head gasket is labor-intensive. Expect about 8–18 hours of labor, depending on the engine and how easily the heads come apart and back together. At typical shop rates of $90–$150 per hour, labor can amount to roughly $720–$2,700.


• Parts: Gasket sets, seals, bolts, and related cooling system components generally total about $200–$600. If you replace ancillary parts such as the water pump or thermostat, add another $100–$400.


• Machine work and inspection: Head resurfacing or checking for warpage can range from $50–$400 per head, depending on the shop and what’s required.


• Additional repairs: If the heads are warped, cracked, or if there’s valve or piston damage, total cost can rise significantly—potentially $4,000–$7,000 or more if extensive engine work is needed.


• Regional variation and shop type: Dealerships typically charge more than independent repair shops; metropolitan areas tend to be pricier than rural regions.

Overall, most customers see a total in the $1,500–$3,500 range for a standard job without major engine damage. Prices can climb if extra components are replaced or if there is significant head damage.

Engine variants and their impact on price

The Outback’s 2011 lineup includes a 2.5L four-cylinder engine in many trims and a 3.6L six-cylinder in higher trims. The labor and parts needs differ enough to affect the bottom line.

2.5L four-cylinder (common in many 2011 Outbacks)

For the 2.5L variant, you’re typically looking at around 8–14 hours of labor with parts and coolant plus any necessary timing-belt-related items if applicable. A common total range is roughly $1,500–$2,800, assuming no major head damage.

3.6L flat-six (EZ36) engine

Replacing a head gasket on the 3.6L engine generally requires more labor and sometimes different tooling due to the engine’s size and layout. Expect higher costs, often in the ballpark of $2,000–$4,000 or more, particularly if there is additional damage or required timing components (even though the 3.6L uses a chain rather than a belt).

How to save on a head gasket replacement

Being strategic about quotes and timing can help control costs without compromising the repair’s quality.

Shop around and get multiple quotes

Request written estimates from at least three independent shops and, if possible, Subaru-certified specialists. Compare labor hours, hourly rates, and what is included in each price (gasket kit, water pump, coolant, etc.).

Ask for a detailed, line-by-line breakdown

A line-item estimate helps you see exactly what you’re paying for and where you might find potential savings or unnecessary add-ons.

Treat it as a bundled service when appropriate

If the timing mechanism (belt or chain, depending on your engine) or the water pump shows wear, consider replacing them now while the engine is already disassembled. While this adds upfront costs, it can prevent future labor charges for a second teardown.

Consider alternatives and warranties

In some cases, especially with high-mileage engines or severe damage, discussing options like a rebuilt/remanufactured engine or a long-term warranty with the shop may be prudent. Weigh these against the cost of a potential engine replacement in the future.

Summary

Replacing a head gasket on a 2011 Subaru Outback is a major repair with a typical price range of $1,500–$3,500, influenced by engine type (2.5L vs 3.6L), the amount of additional work required, and regional labor rates. Expect higher costs if machining or significant engine damage is found. To manage the cost, obtain multiple quotes, demand a clear breakdown, and consider performing related replacements during the same service if warranted. A careful, informed approach can help you minimize surprises while ensuring the repair is done correctly.

What years did the Subaru Outback have head gasket issues?

Subaru Head Gasket Problem Years – First Round
The first group is specific to the 1st gen EJ25D 2.5 liter engine found mainly in the Legacy, Legacy Outback, Forester and the Impreza from 1996 to 1999. These engines suffered from internal head gasket leaks.

How much to replace head gasket 2011 Subaru Outback?

A Subaru Outback's head gasket replacement costs around $2,000, including labor and parts.

Is it worth fixing a blown head gasket?

Whether a blown head gasket is worth fixing depends on the car's value and the extent of the damage. It's likely worth repairing if the vehicle is in good overall condition and the repair cost is significantly less than the car's market value. However, it may not be worth the cost if the repair will exceed the car's value or if the engine has sustained severe damage, potentially making a new-to-you car a better investment. 
This video demonstrates how to diagnose a blown head gasket and its potential consequences: 54sDonutYouTube · Sep 30, 2020
When to fix a blown head gasket

• Your car is in good condition and valuable: If the vehicle has low mileage, is reliable, and you plan to keep it for a long time, the cost of a head gasket replacement can be justified. 
• The repair cost is significantly less than the car's value: A common rule of thumb is that the repair cost should be less than half the vehicle's worth. 
• The damage is limited: The head gasket failure hasn't caused other major engine issues like a warped or cracked block. 

When it may not be worth fixing

• The repair cost is close to or exceeds the car's value: If the repair is expensive and the vehicle is older or has high mileage, you might be better off selling the car for parts or buying a different one. 
• There is severe engine damage: A blown head gasket can sometimes lead to more serious problems like a damaged engine block or head, which can make the repair too expensive and not worth the cost. 
• The vehicle has other major issues: If the car has multiple significant problems, a head gasket repair may not be a wise investment. 

Other options to consider

• DIY sealers: For less valuable vehicles, a DIY head gasket sealer can be a temporary or potentially permanent low-cost solution to buy some time or prevent further damage, but a proper repair may still be needed later. 
• Replacing the engine: In some cases, it may be more cost-effective to replace the entire engine rather than just the head gasket, especially if the head itself is damaged. 

You can watch this video to learn about a temporary fix for a blown head gasket: 58sChrisFixYouTube · Oct 18, 2021

Do 2011 Subaru Outbacks have head gasket problems?

The 2011 Subaru Outback, particularly the 2.5L engine, can have head gasket issues, although the problem was less common in the 2011 model year compared to earlier generations. Symptoms to watch for include engine overheating, unexplained coolant loss, white smoke from the exhaust, a milky white substance on the oil cap, or bubbles in the radiator. A blown head gasket is often caused by overheating and can lead to expensive engine damage if not addressed, so it is important to have the vehicle inspected if any of these symptoms appear.
 
This video explains why Subaru head gaskets fail: 54sMrSubaru1387YouTube · Apr 19, 2023
Symptoms of a failing head gasket

• Engine overheating: The temperature gauge runs higher than normal, or the engine overheats while driving. 
• Coolant loss: The coolant level drops without any visible external leaks. 
• Contaminated oil: A milky white froth or sludge appears under the oil cap or on the oil dipstick. 
• White smoke from exhaust: This occurs when coolant leaks into the combustion chamber and turns to steam. 
• Bubbles in coolant: Bubbles may appear in the radiator or coolant reservoir. 
• External leaks: You may see a mix of oil and coolant leaking onto the ground or on the engine itself, sometimes on the front right side of the engine. 

What to do if you suspect a head gasket issue

• Stop driving the vehicle immediately to prevent further damage. 
• Have a qualified mechanic inspect the car as soon as possible. 
• If a repair is needed, ensure the shop uses high-quality, multi-layer steel (MLS) head gaskets to prevent repeat failure. 
• The repair should also include a thorough inspection of the cylinder heads for warping or cracks and a complete flush of the cooling system.