Popular Subaru Engine Codes & Average Prices
Per-code averages from the curated catalog — every listing priced below its typical market reference.
Expert Solutions for Every Subaru Model
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In-Depth Guide — Buying a Subaru Engine
REPLACEMENT OPTIONS — USED VS RECONDITIONED VS REMANUFACTURED (deep guide)
Subaru replacement decisions are unusually clean because the catalog runs on two boxer families (FB and FA) and the donor landscape is well mapped. The one make-specific rule: oil history is everything, because the boxer layout punishes low oil harder than any upright engine.
Used (9 months/6,000 miles) covers the FB20/FB25 fleet — Crosstrek and Impreza (your fitment-checked price), Forester/Legacy/Outback (your fitment-checked price) — where donor depth is strong (Legacy and Outback are two of the deepest-stock models warehouse-wide at 70 and 63 DB listings). The screening that matters: oil-consumption history (the mid-2010s FB25 ring issue), cam-carrier leak evidence, and compression across the horizontal cylinders. A used FB with clean oil history is a genuinely long-lived engine.
Reconditioned (16 months/12,000 miles) is the tier for keepers on two profiles: mid-2010s FB25 owners (treat as oil-consumers until proven otherwise — reconditioning's fresh rings and honing directly address the known issue) and family haulers (Ascent FA24) where the longer ladder matches the vehicle's remaining life.
Remanufactured (36 months/36,000 miles) earns its place on the turbo FA24 units — WRX, Outback Wilderness, Ascent (your fitment-checked price) — where boost, higher compression, and the premium-fuel requirement make documented assembly the hedge, and on any Subaru destined for another decade of family duty.
Decision path: FB daily driver with clean oil history → used. Mid-2010s FB25 or family keeper → reconditioned. Turbo FA24 or ten-year hold → remanufactured.
POPULAR SUBARU ENGINE CODES & PRICES (real catalog data)
- FB20 2.0L Boxer I4 (Crosstrek, Impreza) — your fitment-checked price vs your fitment-checked price. The base boxer; non-turbo, mild-duty, carbon-resistant port-adjacent design.
- FB25 2.5L Boxer I4 (Forester, Impreza RS, Legacy, Outback) — your fitment-checked price vs your fitment-checked price. The volume boxer — four nameplates share it, and the mid-2010s ring-history screen is the listing differentiator.
- FB25 Hybrid (Crosstrek Hybrid) — your fitment-checked price vs your fitment-checked price. Hybrid pairing verified per donor (Toyota-sourced e-system in this generation); engine side is the FB25.
- FA24 2.4L Turbo Boxer I4 (Ascent, Ascent Onyx, Legacy Sport, Outback Wilderness, WRX) — your fitment-checked price vs your fitment-checked price. Five trims share the turbo boxer — the performance/family hybrid architecture; boost and premium-fuel discipline are the watch items.
Note the Subaru quirk: the turbo FA24 lists BELOW the naturally aspirated FB25 in our catalog (your fitment-checked price vs your fitment-checked price) — donor supply from WRX/Ascent volume keeps the turbo price aggressive, which is why comparing tiers on the same screen (not assuming turbo = premium) is worth the two minutes.
SUBARU ENGINE TYPES EXPLAINED
Subaru builds one layout: the horizontally opposed boxer, in two families. The FB family (FB20 2.0, FB25 2.5) is the naturally aspirated modern boxer — chain-driven, direct-and-port injection variants, with the layout's signature traits: low center of gravity for the car, and oil control/head-gasket geometry that works harder than an upright four's because everything horizontal drains differently. The FB generation fixed the EJ-era head-gasket plague; the mid-2010s FB25 ring issue is the residual known item. The FA24 2.4 turbo is the performance/family evolution — direct injection, twin-scroll turbo, higher compression, intolerant of low octane and low oil. The FA24 non-turbo (BRZ) shares the block in naturally aspirated tune. There are no V6s, no V8s, and no diesel in the current catalog — the EJ turbo era and the 3.6R six ended before this catalog's window, so listings offering "EJ257 STI" or "EZ36" engines are legacy stock and should be VIN-verified before any price comparison.
SUBARU ENGINE REPLACEMENT COST IN THE USA
components: your fitment-checked price to your fitment-checked price — the narrowest price band in the entire catalog, every row your fitment-checked price under market. Subaru is the make where the condition tier, not the engine choice, moves the budget.
Labor by vehicle class (typical install, estimate — confirm with the sales desk):
- Impreza/Crosstrek/Legacy/Outback/Forester (compact/midsize, transverse-ish boxer bay): your fitment-checked price (boxer drops-in from below on many chassis — different labor profile than upright fours)
- Ascent (three-row SUV): your fitment-checked price
- WRX/BRZ (performance longitudinal-adjacent): your fitment-checked price
Worked examples: an Outback FB25 lands around your fitment-checked price installed (your fitment-checked price + labor). An Ascent FA24 runs your fitment-checked price. A WRX FA24 reaches your fitment-checked price installed. Everything under your fitment-checked price — single-payment checkout (card or ACH/eCheck via Authorize.net). Freight: FREE, insured, 12–16 working days, USA and Canada.
SUBARU FAMILY-SPECIFIC PROBLEMS & SYMPTOMS
FB25 (2.5 NA) — the known item: mid-2010s examples carry a documented oil-consumption pattern — low-tension piston rings with short skirts letting oil past on deceleration; Subaru's own extended-warranty action covered thousands. Symptom signature: blue smoke on lift-off (deceleration), oil loss without leaks, fouled plugs on the horizontal cylinders. Screening: compression + leak-down per cylinder, oil-consumption history, cam-carrier inspection. Late FB25s and reconditioned units with fresh rings resolve the pattern.
FB family common items: cam-carrier oil leaks — a weeping seal at the front that looks minor and becomes a your fitment-checked price reseal if ignored (visible residue above the exhaust manifold); cooling-system plastics aging on high-mileage donors. "Boxer shake" at idle that worsens is usually mounts or an oil-fouled plug, not the bottom end.
FA24 turbo: the layout's intolerance is low oil and low octane — knock on regular fuel shortens the window, and oil starvation punishes faster than in upright engines. Watch items: turbo oil-feed restriction (blue smoke on start that fades), dilution on short-trip duty (rising level, fuel smell). Premium-fuel history and oil-analysis are the screening gates. P0420 catalyst codes on oil-burners trace to oil contamination, not the cat itself.
FB20: the mildest-duty boxer; failures are overwhelmingly cooling-side or accident events. Compression and oil-pressure verification carry the load.
Crosstrek Hybrid: engine side mirrors the FB25; the pairing gate is the Toyota-sourced e-system verification — the fitment desk checks inverter/transaxle generation against VIN before dispatch.
BUYING GUIDE — ORDERING YOUR SUBARU ENGINE
Step 1: VIN at /get-price/ — Subaru's codes span few engines but many trims, and the FA24/FB25 split (plus the hybrid) is the verification that matters. Step 2: live tier comparison — the narrow price band means your real decision is the condition tier; Legacy/Outback depth makes supply a non-issue, WRX/Ascent rotate faster. Step 3: tier warranty applies automatically (9mo/6k · 16mo/12k · 36mo/36k, whichever first). Step 4: single-payment Authorize.net checkout (card or ACH/eCheck) or phone at +1 (662) 452-4928. FREE insured freight from in 12–16 working days, USA and Canada — boxers ship in the same crate-and-pallet flow as everything else, lift-gate coordinated. Canadians: same freight terms, USD pricing, duties via your broker.
Subaru — Live Market Listings (reference)
Used-condition market reference listings — your direct price and per-listing savings come from the curated catalog above.
Meet Your Subaru Engine Specialists
A dedicated desk for Subaru fitment, QC sign-off and warranty handling — 27 specialists across 9 departments stand behind every order.
VIN cross-match and swap guidance for every Subaru code.
Compression, leak-down and bench QC with documented sign-off.
9/16/36-month ladder claims handled in-house, 48-hour decisions.
What USA Drivers Say
Real feedback from garage owners and daily drivers we have supplied.
Shop Subaru engines by model
24 Subaru applications — each model page lists the conditions, odometer bands and prices we publish.
Model page shows verified prices where we publish them; "quote" marks applications priced on request by the fitment desk.
Quick answer
Subaru replacement engines — what you need to know first
Replacement engines for the Subaru are matched by engine code from your VIN, not by model year alone. We supply used (9-month warranty), reconditioned (16-month) and remanufactured (36-month) options, freighted by liftgate in 12–16 working days, with the warranty starting at delivery. The exact price for your variation is shown on screen after a short fitment check.
- Match by code, not by year — the same Subaru model year can use more than one engine unit.
- Condition sets the warranty — 9, 16 and 36 months for used, reconditioned and remanufactured.
- Odometer band sets the price — 30–60K, 60–90K and 90–120K mile bands.
Which Subaru engine do you actually have?
Start with the VIN. On most US vehicles the 8th character identifies the engine code, and it is the only reliable way to tell two same-displacement variants apart. Confirm your code with the free NHTSA VIN decoder or the code stamped on the engine block, then send it to us so the fitment desk can match the exact unit.
| Fitment check | What we confirm |
|---|---|
| Engine code | Confirmed from your VIN before dispatch |
| Displacement / configuration | Matched to your build specification |
| VIN position to check | 8th character identifies the engine code on most US vehicles |
| What we need from you | VIN (preferred) or year + make + model + engine size |
| Fuel and drivetrain | Confirmed at the fitment stage — 2WD/4WD/AWD changes the unit that fits |
| Interchange check | We confirm the exact unit against your engine code, not just the model year |
Used, reconditioned or remanufactured for a Subaru — what is the difference?
All three are legitimate routes; the difference is how much of the engine has been renewed and how long the warranty runs. Match the condition to how long you intend to keep the vehicle, then check discount eligibility by phone (the extra discount is applied on the call, not on the screen).
| Condition | What it is | Warranty | Best suited to |
|---|---|---|---|
| Used (tested) | Original used engine from a donor vehicle, odometer band stated on the quote | 9 months / 6,000 miles | Budget repairs where the vehicle still has years left |
| Reconditioned | Stripped and rebuilt with new wear components to a documented specification | 16 months / 12,000 miles | Balancing cost against longer service life |
| Remanufactured | Rebuilt to manufacturer-level tolerances with the full wear set replaced | 36 months / 36,000 miles | Long-term keepers, work trucks and fleet vehicles |
Related supply pages: used engines · reconditioned engines · remanufactured engines · transmissions.
Should you repair or replace a Subaru engine?
Diagnose before you commit. Compression and leak-down results, oil pressure, oil consumption and overheating history tell you whether the fault is internal or an external component — sensors, cooling or fuel delivery faults do not need an engine at all. Where machining and parts approach the cost of a tested replacement, swapping the unit is usually the better use of the money, particularly on high-mileage engines.
- Repair makes sense when the fault is external, the block is healthy and the vehicle is low-mileage.
- Replacement makes sense when compression is down on multiple cylinders, oil consumption is heavy, or the engine has overheated or seized.
- Decide with numbers — repair estimate versus delivered engine price, plus how many more years you expect from the vehicle.
How we verify Subaru engine fitment and condition
Our fitment desk confirms the engine code against your VIN before dispatch, documents the inspection of the unit, and states the warranty term in writing on your quote. We publish prices per condition and odometer band and release your exact figure on screen after the fitment check.
What we do not claim: we do not publish manufacturer power or torque figures as our own data, we do not guarantee stock until the unit is confirmed, and we do not present prices as final before the fitment check. Where a specification needs an official figure, we point you to the manufacturer or NHTSA resources so you can verify it independently.
Verify independently: NHTSA VIN decoder · NHTSA safety recalls · EPA fuel economy data · Subaru official site.
Subaru — FAQ (10 questions)
What engines fits a Subaru?
Fitment is confirmed by engine code, not by model year alone. Send your VIN and we match the exact unit before anything ships.
How much does a Subaru engine replacement cost?
Your price depends on condition (used, reconditioned or remanufactured) and the odometer band of the unit. We release the exact figure on screen after a short fitment check — and you can call to check whether you qualify for additional discount.
Used vs reconditioned vs remanufactured — which should I choose for a Subaru?
Used is the lowest-cost route with a 9-month warranty. Reconditioned is rebuilt with new wear components and carries 16 months. Remanufactured is rebuilt to manufacturer-level tolerances with the full wear set replaced and carries 36 months. Choose by how long you intend to keep the vehicle.
Will a Subaru engine from another vehicle fit mine?
Only if the engine code, fuel system, ancillaries and drivetrain match your build. The same displacement can appear in several configurations, so we verify the code rather than assuming compatibility from the model name.
How do I find my engine code?
On most US vehicles the 8th character of the 17-digit VIN identifies the engine code. You can confirm it with the free NHTSA VIN decoder, and the code is also stamped on the engine itself.
How long does delivery take?
Freight is palletized, tracked and liftgate-capable, typically 12–16 working days. Commercial dock delivery and residential liftgate delivery are both supported and quoted up front.
What does the warranty cover?
Parts are covered for the stated term nationwide. Labor coverage applies only where it is written on your quote — most used-engine warranties are parts-only, while remanufactured tiers can include labor. Your written quote is the controlling document.
What happens if the unit arrives damaged or defective?
Report it with photos within 48 hours of delivery and we decide in-house — replacement or refund path depending on stock. Freight damage is documented with the driver at the door.
How does the core return work?
Where your quote includes core return, pickup of your old engine is prepaid and arranged within 30 days: same block, complete and drained, back on the same pallet.
Do you supply Subaru engines for both automatic and manual vehicles?
Yes. Engine supply is independent of transmission type, and we also supply used, reconditioned and remanufactured transmissions. Tell us the drivetrain at the fitment stage so the ancillaries match.
Real quotes in minutes — the same inventory, the same prices, on the phone.
Frequently asked questions about Subaru Engine Price & Transmission Price
What does delivery cost?
Freight is free and insured on every order, USA-wide, with lift-gate coordination available.
How long does delivery take?
Most orders ship in 12-16 working days.
What warranty do I get?
Warranty is 9/16/36 months by tier: 9 months or 6,000 miles on used, 16 months or 12,000 miles on reconditioned, and 36 months or 36,000 miles on remanufactured units.
Can I finance a replacement?
Financing is available on an order total of $5,000 or more, split into 2 installments, if you qualify.
Is a tested used engine better than a junkyard core?
The primary reason buyers choose a tested used engine over a junkyard core is verified condition: our units are compression-tested and warranty-backed.
| Option | Cost | Warranty | Testing | Reliability |
|---|---|---|---|---|
| Tested OEM used (A2Z) | Below dealer | 9 months / 6,000 mi | Compression + run test | Good, verified |
| Remanufactured (A2Z) | Middle | 36 months / 36,000 mi | Built to specification | Highest |
| Junkyard core | Lowest | Often none | Rarely tested | Variable |
How do I confirm the engine fits my vehicle?
Match the engine code on the block to your VIN range — the code, not the model name, decides whether the unit physically fits.
| Engine variant | Year range | Compatible models | VIN check | Typical pairing |
|---|---|---|---|---|
| 2.5L I4 | 2010-2017 | Mid-size sedans and SUVs | VIN position 8 | 6-speed automatic |
| 2.0L Turbo I4 | 2013-2020 | Compact and mid-size platforms | VIN position 8 | 8-speed automatic |
| 3.5L V6 | 2011-2017 | Large sedans and minivans | VIN position 8 | 6-speed automatic |
| 5.0L V8 | 2011-2017 | Full-size trucks | VIN position 8 | 6/10-speed automatic |
How does ordering work?
Ordering takes four steps: enter your vehicle, confirm your details, compare your nine prices, and we verify fitment before dispatch.
- Enter your vehicle: make, model and condition preference.
- Confirm your contact details and review the summary.
- Compare nine price options across three warranty tiers.
- A fitment specialist confirms the engine code, then the unit ships free and insured.
What do the engine terms mean?
A used engine is a tested original unit that has not been rebuilt.
A OEM engine is the original-equipment unit built by the manufacturer for that platform. A long block is a complete assembly (block, head, internal components) shipped without bolt-on accessories. A reconditioned engine has its worn service parts replaced and is re-tested, and a remanufactured engine is stripped to the block and rebuilt to specification. A VIN is the 17-character vehicle identifier used to confirm the exact engine code that fits your vehicle.