Subaru Outback Engine Replacement Cost (2026 Guide)

Introduction

Replacing a Subaru Outback engine can be a significant expense, but the right replacement option can help you restore your vehicle without spending more than necessary. The Subaru Outback engine replacement cost depends on the model year, engine type, labor charges, and whether you choose a used OEM, JDM, remanufactured, or new engine. From the 2.5L EJ25 and FB25 to the 3.6L EZ36 and 2.4L FA24 turbo, each engine has different compatibility requirements and replacement costs.

Before purchasing an engine, confirm your vehicle's VIN, engine code, and model-year specifications to ensure a proper match. At Premium Used Auto Parts, we help customers source compatible OEM used engines with a focus on quality, fitment, and value.

This guide explains replacement costs, common engine problems, warranty considerations, and the key factors to check before deciding whether to repair or replace your Subaru Outback engine.

Subaru Outback Engine Replacement Cost (2005–2026 Models)

Your Outback Subaru just failed a compression test, or it's knocking, or the shop called with the words nobody wants to hear: "it needs an engine." Now you're looking at three choices. Fix it, replace it, or sell it as-is and walk away.

The answer depends on which engine you have for eg: Subaru Outback Engine Replacement Cost, what actually broke and what the car is worth once it runs again. Most cost guides lump every Outback together, which is how people end up paying for a full engine when a head gasket job would have done, or buying a used engine that doesn't match their VIN.

At Premium Used Auto Parts, we ship tested, low-mileage used OEM Outback engines across the USA, so here are the real numbers, broken down by engine code and model year.

How Much Does a Subaru Outback Engine Replacement Cost?

Replacing a Subaru Outback engine with a used OEM engine typically costs $2,500 to $4,500 installed at an independent shop. A remanufactured engine runs $4,500 to $7,000 installed, and a new Subaru short block usually lands between $5,000 and $8,000.

Labour is figured at the 2026 national average of about $132 an hour from Tekmetric's data on more than 10,000 shops. State averages run from $85 to $197, and dealers often charge more. Totals include $200 to $500 for gaskets, fluids, belts. The FA24 turbo sits at the top of every range.

Which engine is in your Outback?

Before you price anything, pin down the engine. An Outback "2.5" could be one of three different engine families depending on the year, and they don't swap.

2.5L EJ25 and 2.5L turbo EJ255 (2005–2012)

The 2.5i used the single-cam EJ253 from 2005 through 2012. It runs a timing belt and has the head gasket reputation Subarus are known for. The turbocharged EJ255 was only in the Outback XT, which Subaru sold from 2005 to 2009, 2017 Subaru legacy not through 2012. If you have a 2010 to 2012 2.5i, you have a non-turbo EJ253.

3.0L EZ30 H6 (2005–2009) and 3.6L EZ36 H6 (2010–2019)

The 3.0R used the EZ30 flat-six from 2005 to 2009. The 3.6R replaced Subaru outback on the EZ36 for 2010 and stayed through the 2019 model year. Both use timing chains, and neither has the EJ's head gasket problem. Their weak spot is oil leaks: timing cover, valve covers, the oil cooler O-ring and the two oil pans.

2.5L FB25 (2013 onward)

The FB25 arrived for 2013 with a timing chain and a longer-stroke design. Early versions (2013 and 2014) are the ones tied to excess oil consumption. From 2020 the Outback got a direct-injection version like Subaru Outback transmission, sold as the FB25D, which is not a drop-in swap for the 2013 to 2019 port-injected engine.

2.4L FA24 turbo (2019 onward)

Outback XT trims (Onyx Edition XT, Limited XT, Touring XT and the Wilderness) use the FA24F turbo. It's the newest, the least common in salvage yards and the most expensive to replace.

How to confirm it

Look at the 6th character of your VIN, not the 8th. Subaru uses position 6 for engine type, and every serious seller lists engines by it. The 2021 Subaru Outback 2.5i engine is usually listed as "VIN A" or "VIN D," for example, while a 2015 to 2019 3.6R is "VIN E" or "VIN F." The letters change between years, so they always match year and letter together.

Then check the engine itself. The engine code (EJ25, FB25, EZ36 and so on) is stamped on a pad on the block near where the engine bolts to the Subaru transmission. You'll need a flashlight and a mirror. If the stamp doesn't match what the VIN says, the car has had an engine swap, and you should buy to match the engine that's in it, not the paperwork.

Outback Engine Replacement Cost by Model Year

Used prices below come from current listings at US recyclers, JDM importers and in October 2026. Where we couldn't find enough live listings, the range is our estimate and is marked with an asterisk.

The cheapest listings tend to be high-mileage pulls with 30-day warranties. A 2018 to 2019 FB25 with 139,000 miles was listed under $500 this month, while a 2025 FB25 with about 13,500 miles was $1,800 plus $260. Mileage drives price more than anything else.

Head gasket job or full engine: which do you need?

Plenty of Outbacks get sold for scrap with an engine that could have been fixed. Plenty of others get a $2,500 head gasket job on a block that was already worn out. A $150 test tells you which camp you're in.

EJ25 head gasket leaks (2005–2012 2.5i). These usually fail outward, autos subaru impreza so you see oil or coolant weeping down the sides of the block, often around 100,000 miles. Overheating and coolant loss come later.

If compression is even and there's no knock, a head gasket job with updated multi-layer steel gaskets, a timing belt and a water pump is the right repair. Expect $1,500 to $3,000 at an independent shop, since the engine usually comes out to do it properly.

FB25 oil burning (mostly 2013–2014). The cause is the piston rings, so new gaskets won't fix it. If you're adding more than a quart every 1,000 miles and the plugs are fouled, you're looking at a short block or a replacement engine.

What about the 2017 Subaru Outback, 2018 Subaru Outback, and Outback Subaru 2020 models?

These model years can have different engine configurations and potential repair requirements. Before choosing a head gasket repair or replacement engine, confirm the engine type, check for coolant loss, oil consumption, overheating, and unusual knocking, and have the vehicle professionally diagnosed.

If compression is even and the only problem is an external leak, fix the gasket. If two or more cylinders are low, or there's a knock, replace the engine.

Is Subaru still covering FB25 oil consumption?

The short-block settlement, and why it has now expired

In 2016, Subaru settled a class action over FB-series engines that burned oil (Yaeger v. Subaru). The court gave final approval on August 31, 2016. For the Outback, it covered 2013 and 2014 models and extended the warranty for oil consumption repairs to 8 years or 100,000 miles, whichever came first. Owners who were already past that limit got one extra year.

The settlement did not include 2015 or later Outback models. Owners of other Subaru vehicles, including the Subaru Legacy and Subaru Impreza, should check their specific model year, engine, VIN, and applicable warranty terms rather than assuming the same settlement coverage applies. Searches may also lead owners to information about engine issues, maintenance, and replacement options.

Check your VIN for open recalls before you pay for anything

Run your VIN at Premium used auto parts on Subaru's recall lookup and on NHTSA's site before you authorize any engine work. It takes two minutes. An open recall or a service campaign won't always cover the engine, but it's free money if it does, and the dealer has to tell you either way.

Used, JDM, remanufactured or new: four routes compared

Two things catch people out. First, "new" from Subaru usually means a short block: crank, pistons and block only. Your heads, timing parts and accessories move over, which adds labour. A genuine 2018–2019 Outback 2.5 short block lists at about $1,970 at discount, and a 2015–2019 3.6R short block about $2,970.

Second, remanufactured warranties vary a lot. National remanufacturers like Jasper offer 3 years or 100,000 miles with parts and labour, while some online sellers advertise far longer terms with conditions buried in the fine print.

What a JDM Subaru engine really is, and what to check

A JDM engine was pulled from a car in Japan, where strict inspection rules push older cars off the road early. The mileage claim is usually "45,000 to 80,000 kilometres or miles," and you rarely get a documented odometer reading a 2021 Subaru outback.

They're the same factory engine, but Japanese-market versions can differ in intake, sensors, emissions parts and wiring. Ask the seller for a compression readout, plan to swap your own intake and accessories over, and don't assume it's legal in California without the correct US emissions parts fitted.

Should you rebuild instead?

An EJ25 rebuild kit costs $400 to $600. Add machine work, a set of head gaskets, a timing kit and 15 to 20 hours of labour and most shops land between $3,500 and $5,500, with a short or no warranty. Rebuilding makes sense if you do the work yourself or the engine is rare. For a typical Outback, a tested used engine is cheaper and faster.

Labour: how many hours, and how long the car is off the road

Subaru outback used car for sale boxer engines come out the top, with the transmission left in place, which makes them one of the easier swaps. Book times vary by guide and year, so ask your shop for the number they're quoting. As a working estimate:

• EJ25 / EJ253: 8 to 11 hours
• FB25 and FB25D: 9 to 12 hours
• EZ30 / EZ36: 10 to 13 hours
• FA24 turbo: 11 to 14 hours

Plan on three to five working days in the shop once the engine (2017 Subaru legacy) arrives adds two to seven days depending on where it ships from.

Parts worth replacing while the engine is out, because the labour is already paid for:

• Rear main seal and cam/crank seals ($30–$80)
• Water pump, thermostat and coolant hoses
• Timing belt kit with tensioner and idlers on any EJ engine ($200–$400)
• Spark plugs, valve cover gaskets and the oil cooler O-ring on EZ36 engines
• Motor mounts if they're cracked
• Clutch, on manual cars

Buying a used Outback engine: 7 things to confirm first

Exact engine code and model year match

Match the 6th VIN digit, model year and emissions spec (PZEV or federal). A 2015 FB25 and a 2020 FB25D share a name and almost nothing else that bolts on.

Mileage, and whether it's documented

Ask for the donor vehicle's VIN and odometer reading. A US recycler should have both. "Low miles" with no donor VIN is a claim, not proof.

Compression or run test proof

Ask for a photo of compression readings for every cylinder, or a video of the engine running before it was pulled. Good sellers have this on file.

Warranty length and what it covers

Some warranties are 30-day "start-up" coverage only, require installation by an ASE-certified tech, and pay no labour. Know which kind you're getting before you pay.

Core charge and return policy

Ask whether there's a core charge, how much it is, how many days you have to return your old engine and who pays shipping on it. Get it in writing.

What's included (long block, accessories, sensors)

A long block has the heads and timing parts. A complete engine may also include the intake, alternator, AC compressor and sensors. Know which you're buying so your shop can quote labour correctly.

Shipping cost, and whether it goes by to a commercial address or with a liftgate

Engines ship on a pallet. Delivery to a repair shop is usually $150 to $350. Delivery to a home often costs more and needs liftgate service, so ship straight to the shop if you can.

Will a Forester or Legacy engine fit?

A Legacy from the same year and engine code is usually a direct match. Forester FB25 long blocks from 2011 to 2018 are often sold as interchangeable with 2013 to 2018 Outbacks, but the intake, oil pan, harness and accessory brackets can differ, so your shop should plan to swap your own parts across. Confirm by part number before you buy.

Replace the engine or sell the Outback?

Put the installed engine cost next to what the car will be worth running. A 2017 3.6R with about 173,000 miles was listed around $9,000 this month, and a 2012 3.6R with 233,000 miles under $4,000. Spending $3,500 on a car worth $9,000 is easy maths. Spending it on a car worth $4,000 is not.

Then check what else is due. A slipping or shuddering CVT, rusted rear subframe or rockers, or noisy wheel bearings can turn a good engine decision into a bad one. Read our guides to Subaru Outback CVT problems and wheel bearing replacement first. On a 2005 to 2012 EJ car, also see our Outback timing belt guide.

Frequently Asked Questions

Conclusion

A failing engine doesn't automatically mean a Subaru Outback engine replacement, and it rarely means giving up on the vehicle. Get a proper diagnosis first. Sometimes a repair costs far less than a new engine.

If the engine does need replacing, compare used OEM and remanufactured options and read the warranty terms on each. Weigh that against what your Outback is worth and how good the rest of it is. Before you buy anything, confirm the engine code matches your VIN. Premium Used Auto Parts can match a used OEM engine to your Outback and help you keep replacement costs down.