Parts for your 2017 Subaru Outback-Strut mounts

2017 Subaru Outback strut mounts — what they do and when to replace them

Strut mounts are fitted to the front suspension of the 2017 Subaru Outback (generation BS/BN). Technical references including the Subaru Service Manual (Chassis: Front Suspension, MacPherson strut layout), Subaru parts catalogues listing a “front strut mount/insulator with bearing” for BS/BN Outback, and common aftermarket fitment guides from brands like KYB and Monroe all confirm a dedicated front strut top mount with an integrated bearing. The rear of this model uses a multi‑link/double wishbone layout with separate shock absorbers and upper insulators rather than true strut mounts, so “strut mounts” are relevant to the front axle only.

On the front of the Outback, the strut mount does two big jobs: it bolts the top of the strut to the body under the bonnet, and it isolates vibration so road harshness doesn’t echo through the cabin. It also houses a bearing that lets the strut rotate smoothly as the driver steers, which helps maintain accurate alignment and tidy tyre wear while cutting down on steering kickback and NVH.

Because the mount is part rubber, part bearing, it wears. When it’s tired, the Outback can develop clunks over speed bumps, groans on slow turns, a notchy steering feel, a tendency to “memory steer” after cornering, or uneven front tyre wear. Left and right mounts age together, so they’re best replaced as a pair.

• Typical replacement timing: often 100,000–160,000 km, sooner if the vehicle tows, carries heavy loads, or sees corrugated/gravel roads.
• Best practice: fit new mounts whenever front struts or coil springs are replaced.
• Quality matters: choose OE or reputable aftermarket mounts with the correct integrated bearing.

During service, a technician will inspect for perished rubber, play in the bearing and witness marks around the top hat. If replacement’s on the cards, fresh top nuts should be used, the bearing orientation followed carefully, and all fasteners torqued to the manufacturer spec. Once the front end is back together, a wheel alignment is essential. It’s smart to check related items at the same time — sway bar links, spring seats, dust boots and bump stops — and address anything loose to keep the Outback tracking straight and riding quietly.

Done properly, new strut mounts restore crisp steering feel, reduce cabin noise, and help protect those expensive tyres — a tidy upgrade for comfort and roadworthy confidence.

Popular questions about 2017 Subaru Outback strut mounts

Does the 2017 Outback have strut mounts front and rear?
It uses true strut mounts with bearings on the front only. The rear is a multi‑link setup with separate shocks and upper insulators, not MacPherson struts, so rear “strut mounts” don’t apply in the same way.

How long do the front strut mounts usually last?
There’s no fixed interval, but many last 100,000–160,000 km. Rough roads, regular towing and big temperature swings can shorten that. Replace them when doing front struts or if symptoms like clunks, groans or memory steer appear.

Do worn strut mounts affect alignment and tyre wear?
Yes. Excess play or a sticky bearing can upset steering return, alter camber/caster under load and contribute to uneven tyre wear. After replacement, a proper wheel alignment is recommended.