2.4L DOHC 16-Valve Engine Complete Assembly for 2020-2022 Subaru Legacy, Outback
Product Notes Read before buying
This is a 2.4L turbocharged engine, known as the FA24F. It fits models where the 6th digit of the VIN is G or H. The turbocharger assembly is NOT included with this engine and must be sourced separately.
Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.
Vehicle Fitment Guide
This part fits the following vehicles:
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| Limited GT | Sedan | 2020 - 2022 | H4 2.4L Turbo | AWD | Automatic CVT |
| Limited XT | Sedan | 2020 - 2022 | H4 2.4L Turbo | AWD | Automatic CVT |
| Premier GT | Sedan | 2020 - 2022 | H4 2.4L Turbo | AWD | Automatic CVT |
| Touring XT | Sedan | 2020 - 2022 | H4 2.4L Turbo | AWD | Automatic CVT |
| 2021 |
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| Limited XT | Wagon | 2020 - 2022 | H4 2.4L Turbo | - |
| Onyx Edition XT | Wagon | 2020 - 2022 | H4 2.4L Turbo | - |
| Outdoor XT | Wagon | 2020 - 2021 | H4 2.4L Turbo | - |
| Premier XT | Wagon | 2020 - 2022 | H4 2.4L Turbo | - |
| Touring XT | Wagon | 2020 - 2022 | H4 2.4L Turbo | - |
| Wilderness | Wagon | 2022 | H4 2.4L Turbo | - |
Know This Engine Before You Buy
The research behind our purchase interview — recalls, bulletins and real install economics for this engine family:
A quick look at your own vehicle makes sure the right engine shows up:
- Confirm Body Style: Verify that your vehicle is a Subaru Legacy Sedan (not an Outback, Ascent, or WRX).
- Verify the VIN 6th Digit: Confirm that the 6th digit of your VIN is either G or H.
- Verify the VIN 10th Digit (Model Year): Confirm that the 10th digit of your VIN is L (2020), M (2021), or N (2022).
- Confirm Original Engine Type: Verify that your original engine is the 2.4L Turbocharged unit with top-mounted intercooler ducting, not the standard 2.5L naturally aspirated engine.
- Acknowledge Turbo Requirement: Confirm understanding that the turbocharger is not included and must be transferred or sourced separately.
What the install really takes — plan and budget with confidence:
Special tools this job needs:
- Engine hoist with a load leveler
- Subaru-specific engine stand adapter
- Torque wrench
- Fuel line quick-disconnect tools
- High-pressure fuel system tools
- Bi-directional scan tool (Subaru Select Monitor IV or equivalent)
- Cam sprocket wrenches
Budget for these consumables at install:
- Engine Oil: Full synthetic 0W-20 oil meeting API SN Plus / SP and ILSAC GF-6 specifications (4.8 quarts / 4.5 liters)
- Oil Filter: Genuine Subaru OEM filter (Part # 15208AA170 or equivalent Tokyo Roki filter)
- Coolant: Subaru Super Coolant (pre-mixed blue formula)
- Spark Plugs: NGK Laser Iridium (Part # SILKFR8A6 / Subaru Part # 22401AA920)
- Exhaust manifold gaskets
- Intake manifold gaskets
- Turbocharger oil and coolant line gaskets/O-rings
- High-quality liquid gasket (ThreeBond 1217H or equivalent)
- Oil level sensor O-ring
What your vehicle’s computers will need after the swap:
What’s involved: Crankshaft Position Sensor Relearn / ECU Re-marriage
sources differ: Arm 1 states ECU re-marriage is not required if reusing the original ECU but a scan tool is required for Crankshaft Position Sensor Relearn; Arm 2 states programming/re-marriage is required to ensure the ECU communicates with new sensors and the immobilizer system. Cautious value 'yes' selected.
Pro tips for a smooth first start-up — hand them to whoever does the install:
- The 'LESS TURBO' Transfer Hazard: If your original engine suffered a catastrophic failure, metal shavings will have contaminated the turbocharger. Do not reuse a contaminated turbocharger as it will destroy the new engine.
- Fragile Oil Level Switch & Solenoids: The oil level switch and variable valve timing (AVCS) solenoids are highly fragile and easily cracked during engine swap.
- High-Pressure Fuel Line Replacement: The high-pressure fuel lines running from the high-pressure fuel pump (HPFP) to the injectors are single-use only and must be replaced.
- Precise RTV Application: Excess RTV sealant on the timing cover or oil pan can break off internally, clog the oil pickup screen, and cause catastrophic bearing failure.
- CVT Cooler Lines: Engines from automatic vehicles may have extra coolant lines for a CVT cooler that need to be properly looped or capped if your setup differs.
- Ground Straps: Ensure all engine-to-chassis ground straps are clean and securely reconnected to prevent electrical issues.
Easy to get right once you know them:
- Ordering for a Non-Legacy Vehicle: Assuming this engine will fit an Outback XT, Ascent, or WRX because they share the FA24F family.
- Reusing Contaminated Components: Failing to flush or replace the oil cooler, oil lines, and turbocharger after a previous engine failure.
- Skipping the Crankshaft Relearn / ECU Relearn: Assuming the engine is plug-and-play, which leads to check engine lights, rough idling, or no-start conditions.
- Using the Wrong Oil Weight: Using heavier viscosity oils instead of the required 0W-20, which affects the sensitive AVCS system.
- Not Realizing the Turbo is Missing: Ordering this unit without realizing the turbocharger is not included and must be transferred or sourced separately.
- Ignoring the TCU Recall: Failing to perform the TCU software update (WRK-21) after installation on 2020 models.
Not issues with the units on this page — the manufacturer documented these for every engine of this family, wherever you buy one. Handy for your installer:
🔎 Recommended at install: Dealer reprogramming of the TCU (NHTSA Recall 21V-955000 / Subaru Recall WRG-21 / WRD-20 / WRK-21)
🔎 Recommended at install: Replacement of the fuel pump by a dealer (NHTSA Recall 20V-214000 / 20V399000 / Subaru Recall WRD-20)
🔎 Recommended at install: Replace inhibitor switch (NHTSA Recall 23V-755000 / Subaru Recall WRQ-23)
🔎 Recommended at install: ECM reprogramming with updated files (Subaru TSB 09-97-22)
🔎 Recommended at install: Replace the o-ring for the oil level sensor / switch (Subaru TSB 02-190-22R)
🔎 Recommended at install: Repair or replace front exhaust pipe (Subaru TSB 09-106-23R)
🔎 Recommended at install: Manual carbon cleaning service
🔎 Recommended at install: Reseal the lower oil pan
Researched from factory recalls, TSBs and OEM service data (reference unit 300-10322-5110250). Unit-specific details — mileage, condition, warranty, freight — are covered in the checkout interview.
Policies, in plain English.
Shipping & Handling
- Ships by LTL freight on a pallet — a real freight truck, not a parcel van
- Your checkout freight quote covers delivery to your door (liftgate service included for residential addresses)
- The carrier calls ahead to schedule a delivery window — someone must be present to receive it
- Typically palletized and picked up within 2–3 business days; transit time depends on distance
120-Day Warranty
This part includes a 120-day warranty.
- If the part fails within the warranty window, we'll replace it or refund per the coverage terms
- Coverage is parts-only — installation labor is not included
- Warranty covers defects — not installation errors, misuse, or damage after installation
Your pre-purchase interview reviews these exact terms with you before anything is charged.
Returns (30 Days)
We accept returns of uninstalled parts within 30 days of delivery for this part.
- Defective parts: We will replace the part or issue a refund at our discretion
- Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
- Return shipping: This part ships by freight (LTL) — the part price is refundable per the terms above, but shipping costs are non-refundable and return freight follows the seller's return terms. Your pre-purchase interview walks through the exact numbers before you buy
- Parts must be returned in original packaging and unmodified condition
- Poorly packaged returns that arrive damaged will not be credited
Damaged in Shipping?
Freight damage is rare — and you're fully protected when you do two things at delivery:
- Inspect before you sign — you're allowed time to look the pallet over while the driver waits
- Write any damage on the delivery receipt before signing — that one line is what makes a freight claim succeed
- Severe damage? Refuse the delivery — it goes back at no cost to you and we make it right
- Photograph the pallet before unwrapping; report concealed damage within 24 hours of delivery
We handle the carrier claim — you just help document it. Your pre-purchase interview walks through this checklist too.
Order Cancellation
Cancel before shipment for a full refund. Once the pallet has been built, a preparation charge may apply — and once the freight carrier picks it up, shipping costs are non-refundable and standard return terms apply. Your pre-purchase interview shows the exact numbers before you pay.
Expert Guides
2020-2022 Subaru Legacy & Outback 2.4L Turbo FA24F: Problems, Identification, and Used Replacement
Identify common FA24F failures like CVT chain slip and oil starvation, and learn when a used OEM engine is the smartest fix.
Read Full Guide →Related Trouble Codes (OBD-II)
8 matching guidesIf your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.
Miscellaneous Information
OEM Part Numbers:
Subaru: 10100CD940, FA24FXZHGA
Fits Years: 2020 2021 2022
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This unit ships with the selling yard's 120-day warranty. Longer plans can be requested during checkout.
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