Parts for your 2015 Subaru Outback-Strut mounts

2015 Subaru Outback strut-mounts: what they do and when to replace them

Per the Subaru Factory Service Manual for the 2015 Outback (chassis/suspension section) and Subaru genuine parts catalogues used by dealers, this model runs a MacPherson-strut front suspension with a separate strut top mount/bearing, and a double-wishbone rear with a separate shock and spring (no rear strut mount). So, strut-mounts are absolutely relevant on the front of a 2015 Subaru Outback, while the rear uses different hardware.

Up front, the strut-mount sits at the top of the strut assembly and bolts to the body. It isolates road noise and vibration, supports the vehicle’s corner weight, and—critically—houses a bearing that lets the strut rotate smoothly when steering. On the 2015 Outback, healthy mounts keep steering light and precise, reduce thumps over potholes, and stop tyre cupping from extra compliance or binding.

There’s no fixed replacement interval, but they live a hard life on Aussie and Kiwi roads. It’s smart to inspect them at every major service or whenever front struts are replaced. Typical signs they’re tired include:

• Clunks over speed humps or driveway entries, especially in wet weather
• Creaking or graunching as the wheel is turned at parking speeds
• Vague on-centre steering, “memory steer”, or the wheel not self-centring cleanly
• Uneven or cupped front tyre wear and minor changes to ride height

Best practice for a 2015 Subaru Outback is to replace strut-mounts in pairs whenever new front struts go in, or at the first sign of noise or steering bind. Use quality OE or equivalent mounts with integral bearings, and renew the dust boots and bump stops while you’re there. During installation, clock the mount correctly to the body and torque all fasteners to factory spec, then finish with a proper four-wheel alignment to reset camber and toe. If the car sees corrugations, towing, or plenty of city kerb hits, consider earlier inspection—every 40,000–60,000 km is reasonable. Keeping the front end tight protects tyres, preserves steering feel, and stops small knocks turning into bigger suspension costs down the track.

Does the 2015 Subaru Outback have rear strut-mounts?

No. The rear is a double-wishbone layout with a separate shock and spring, so there’s no rear strut or rear strut-mount. Only the front uses MacPherson struts with top mounts and bearings.

What are common signs a front strut-mount is failing on a 2015 Outback?

Owners often notice clunks over bumps, creaks while turning at low speed, heavier or “sticky” steering, and uneven front tyre wear. If the steering wheel doesn’t self-centre smoothly, the top mount bearing may be binding.

Should strut-mounts be replaced with the struts?

Yes—on this model it’s wise to replace mounts whenever the front struts are changed. It’s a small extra cost that prevents rework, restores steering smoothness, and helps the new struts last. Always follow up with a wheel alignment.