Parts for your 2022 Subaru Outback-Head gasket

2022 Subaru Outback head gasket — what it does and when to service it

According to Subaru technical sources, the 2022 Subaru Outback absolutely uses head gaskets. The factory service manuals available via the Subaru Technical Information System (STIS) for the FB25 (2.5‑litre) and FA24 (2.4‑litre turbo) engines specify head gasket fitment and torque sequences in the Cylinder Head procedures. Subaru’s official parts catalogues for these engines also list a “Gasket – Cylinder Head” for Model Year 2022 Outback variants. So yes—this part is relevant and fitted to every 2022 Outback.

In simple terms, the head gasket seals the join between each cylinder head and the engine block. On the Outback’s boxer four, there are two heads—so two head gaskets—keeping combustion pressure in, and engine oil and coolant in their proper passages. A healthy gasket maintains compression, prevents cross‑contamination, and helps the cooling system manage heat under the bonnet, whether it’s the daily school run or a long Kiwi or Aussie road trip.

While there’s no scheduled replacement interval for a head gasket, smart servicing helps it live a long life. Keeping the cooling system in top nick is the big one: use the correct Subaru Super Coolant premix, replace coolant per the logbook, and fix any leaks or overheating quickly. Regular oil changes with the specified grade also reduce deposit build‑up that can stress gaskets and surfaces.

If replacement is needed, it’s a specialist job. The 2022 Outback’s FB/FA engines use multi‑layer steel (MLS) gaskets and torque‑to‑yield head bolts with precise tightening angles. A proper repair will:

• Follow the factory torque sequence and bolt specs, replacing head bolts where specified.
• Measure head and block flatness, lightly machine the head if it’s out of spec.
• Clean mating surfaces meticulously—no gouges, no leftover sealant.
• Renew ancillary bits while access is easy: thermostat, hoses, and any weeping seals.
• Refill with the correct coolant, bleed air properly, and change engine oil and filter.

Early warning signs owners should watch for include unexplained coolant loss, overheating, sweet‑smelling white steam from the exhaust after warm‑up, milky sludge under the oil filler cap, rough cold starts, or a rapidly pressurising cooling system. Catching these symptoms early often saves money and protects the alloy heads.

Bottom line: in a 2022 Outback, a head gasket is vital hardware. With correct fluids, cooling system care, and prompt attention to any overheating, most owners will never need to think about it—until a big kilometre milestone or an unrelated repair puts the engine on a stand.

Popular questions about 2022 Subaru Outback head gaskets

Do all 2022 Outback engines have head gaskets?
Yes. Both the 2.5‑litre FB25 and the 2.4‑litre turbo FA24 use one head gasket per cylinder bank. Subaru’s service manuals and parts catalogues for MY22 confirm the part’s presence and the specific torque procedures.

What are the first signs of a failing head gasket on a 2022 Outback?
Common clues are coolant loss without visible leaks, overheating on climbs, persistent white exhaust steam after warm, bubbles in the expansion tank, or milky residue in engine oil. Any of these warrant a cooling system pressure test and a combustion‑gas check.

Is head gasket replacement a driveway job?
Not recommended. The boxer layout, MLS gaskets, and torque‑to‑yield fasteners require factory procedures and accurate tools. Most workshops prefer engine‑out for access, then verify head flatness and cooling system health before reassembly.