How long is the timing belt life on a Subaru Outback?

On most Outbacks that rely on a timing belt, the belt’s life is about 105,000 miles (roughly 170,000 kilometers) and should be replaced before that point. If your model uses a timing chain instead of a belt, there is no fixed replacement interval for a belt—but regular inspections are still important.

The belt vs. chain question: what drives the difference

Subaru’s Outback lineup has evolved over the years. Some engines used a timing belt with a defined replacement interval, while newer engines have shifted to a timing chain that does not require periodic belt replacement. Here’s what that means for maintenance strategy and budgeting.

Belt-driven Outbacks: what to expect

Before the list, keep in mind that belt-driven engines require planning to replace the belt and wear components in one service window to minimize risk of catastrophic failure.

• Timing belt replacement: roughly 105,000 miles (about 170,000 kilometers) or 8 years, whichever comes first


• Replace components in the timing area at the same time: water pump, belt tensioners, and idlers


• Inspect seals and gaskets around the timing cover; replace if signs of wear or leakage are present


• Inspect other age-related wear (coolant hoses, serpentine belt) as part of a comprehensive belt-service window

Replacing these parts together during one scheduled service minimizes the risk of belt failure and can prevent more expensive repairs later.

Chain-driven Outbacks: how they differ

Before the list, note that many newer Outbacks use a timing chain instead of a belt, which removes a fixed replacement interval from the schedule—but does not eliminate maintenance needs.

• There is no universal "belt life" interval for chain-driven engines; chains are designed to last longer, but wear can occur over time


• Common wear indicators include unusual chain noise, especially on cold starts, or diagnostic trouble codes related to timing


• Engine oil quality and regular oil changes matter, because the chain and tensioners rely on clean oil for lubrication and proper tension


• If a chain or tensioner wears severely, repairs are typically costly and may require substantial labor

In practice, chain-driven Outbacks can go well beyond 150,000 miles with proper maintenance, but potential issues do surface as mileage accumulates. Always consult the service history and a qualified technician for a risk assessment.

How to verify which system your Outback has

Before you plan maintenance, confirm whether your specific model uses a belt or a chain. Use these steps to verify:

• Check the owner’s manual or the manufacturer’s maintenance schedule for your exact engine code


• Look under the hood for the engine type code (e.g., EJ25, FA24, FB25) and compare with Subaru’s documentation


• If in doubt, contact a Subaru dealer or a trusted independent shop to confirm timing-system type and the recommended service interval

Choosing the correct path—belt vs. chain—depends on your engine variant, model year, and maintenance history. Rely on official documentation and expert guidance to plan the right service.

Summary

The timing belt life on a Subaru Outback typically centers around a replacement window of about 105,000 miles (170,000 km) or 8 years for belt-driven engines. For newer, chain-driven engines, there is no fixed belt-life interval, but regular inspections, timely oil changes, and listening for unusual noises are essential. Always verify your engine type in the owner’s manual or with a Subaru technician to tailor your maintenance plan and budget accordingly.

How much does it cost to replace a timing belt on a Subaru Outback?

The cost to replace a Subaru Outback timing belt typically ranges from $409 to over $1,500, depending on the shop, parts used, and your location. Independent mechanics may charge $409-$919, while a dealer can cost $1,000-$1,300 or more for the same service. The main driver of the cost is labor, as replacing the belt requires significant disassembly of other engine parts.
 
Cost breakdown and factors

• Labor is the biggest expense: The high labor cost is because many other parts need to be removed to access the timing belt. 
• Location matters: Costs are often higher in metropolitan areas. 
• Dealer vs. Independent Shop:
  • Dealer: Typically higher cost due to specialized training, manufacturer-recommended parts, and higher labor rates, but may offer a manufacturer's warranty on parts. Expect to pay between $1,000 and $1,300 or more. 
  • Independent Shop: Generally lower prices, potentially using aftermarket parts. Costs can range from around $409 to $919. 
• Parts cost: The belt itself is not that expensive. For a quality timing belt and component kit, the parts alone might cost around $325. 
• Associated parts: It is highly recommended to replace other parts along with the belt, such as the water pump and tensioner, which will add to the total cost but is a more cost-effective approach in the long run. 

Tips for getting the best price

• Shop around: Get quotes from several mechanics, including both dealerships and independent shops, to compare prices. 
• Ask for a full quote: Ask for a quote that includes the timing belt, water pump, and any other relevant components that should be replaced at the same time. 
• Use online resources: Check forums like Reddit for typical costs in your area. 

Do subarus have timing belt issues?

Just like rubber accessory belts under the hood, the timing belt may stretch and crack over time. And since modern Subaru engines are interference engines, that means that a broken timing belt could cause severe damage to the engine! That's why it's crucial to get the timing belt on your Subaru changed before it fails.

What year to stay away from a Subaru Outback?

Years to avoid for the Subaru Outback include 2010–2014, which had widespread CVT, oil consumption, and oil leak issues, and 2018, which had recalls and reliability concerns. Additionally, some sources recommend avoiding the 2005–2007 models due to head gasket problems and the 2020 model, which had electrical and windshield issues. 
Years to avoid

• 2010–2014: These models are frequently cited for significant transmission issues (CVT), oil consumption, and general reliability problems. The 2010 model specifically had issues with the torque converter locking up. 
• 2018: This year saw recalls and owner complaints related to oil consumption, exhaust components, and electrical issues. 
• 2005–2007: These models are known for head gasket failures, which can cause coolant and oil leaks. 
• 2020: This model year is associated with a high number of electrical problems, including dead batteries and stalling, as well as issues with the windshield cracking from small chips. 

Other potential problem years

• 2013: Frequently mentioned for oil consumption issues.
• 2015: Some reports list it with electrical and engine problems.
• 2017: Reliability issues were noted. 

When should the timing belt be replaced on a Subaru Outback?

Subaru recommends replacing the timing belt on an Outback every 105,000 miles or seven years, whichever comes first. It is also crucial to replace the timing belt if you notice any signs of wear, such as a ticking noise, stuttering, or engine issues, as a broken timing belt can cause severe engine damage. 
Replacement schedule

• Mileage: 105,000 miles
• Time: Seven years
• Key takeaway: Whichever comes first (mileage or time) 

When to replace sooner

• Your owner's manual may have a different recommendation based on the specific model year. 
• If you see any signs of damage on the belt itself, such as cracking, fraying, or wear. 
• If you hear unusual noises like a high-pitched squeaking or ticking from the engine. 
• If the car is experiencing performance issues like stuttering or stalling. 
• If the "Check Engine" light comes on. 

Important considerations

• It is highly recommended to also replace the tensioner, idler pulleys, and water pump at the same time as the timing belt, as these components are often replaced together to prevent future issues. 
• Ignoring the timing belt replacement can lead to catastrophic engine failure, as it synchronizes the engine's internal parts.