Parts for your 2019 Subaru Legacy-Strut mounts

2019 Subaru Legacy (Liberty) strut-mounts — what they do and when to replace

Technical sources confirm that strut-mounts are relevant and used on the 2019 Subaru Legacy (known as Liberty in AU/NZ). The Subaru Service Manual for the BN/BS platform (Front Suspension, Chassis) specifies a MacPherson strut front end, which requires an upper strut mount with an integrated bearing. The Subaru Genuine Parts catalogue for 2019 Legacy/Liberty lists the front “strut support/strut mount” assembly, and major aftermarket application catalogues (e.g., KYB and Monroe) list front strut-mount kits for this vehicle. The rear suspension is a double-wishbone design with separate shock absorbers and upper shock mounts, not rear strut-mounts in the MacPherson sense.

On the front of a 2019 Subaru Legacy, the strut-mounts do more than just hold the strut in place. They isolate road noise and vibration, keep the spring and damper correctly located, and the built-in bearing lets the strut rotate smoothly as the wheels steer. When these mounts go tired, owners can end up with steering that won’t return to centre cleanly, clunks over bumps, or uneven tyre wear.

There’s no fixed replacement interval, but a good rule of thumb in Aussie and Kiwi conditions is to inspect the front strut-mounts every 20,000–30,000 km and expect replacement somewhere around 100,000–160,000 km, or sooner if the car sees poor roads. Any time front struts are replaced, it’s smart practice to fit new mounts and bearings at the same time—labour overlaps, and fresh mounts protect the new dampers.

• Common signs they’re due: knocking over potholes or speed humps, notchy steering, “memory steer,” front-end creaks on low-speed turns, visible rubber cracking, or a misaligned spring seat.
• Service tips: replace as a left/right pair, renew the upper nuts if specified by the manual, and check the strut bearing rotates freely before install. Always finish with a proper wheel alignment.

Quality matters here—choosing OE or reputable aftermarket mounts keeps the ride quiet and the steering feel crisp. While a seasoned DIYer with a safe spring compressor can handle the job, most owners will prefer a workshop to manage spring tension safely and to dial in alignment. Expect roughly a couple of hours for both fronts plus alignment, depending on workshop and condition of fasteners.

FAQs

Do 2019 Subaru Legacy models have rear strut-mounts?
No. The rear uses a double-wishbone layout with separate shock absorbers and upper shock mounts. Some parts sites may casually call them “rear strut mounts,” but technically they’re shock mounts, not MacPherson strut-mounts.

How long do front strut-mounts last on a 2019 Legacy?
Driving conditions, load, and tyre choice all play a role, but many last 100,000–160,000 km. Frequent corrugations, big potholes, or oversized wheels can accelerate wear, so regular inspection during servicing is wise.

Should strut-mounts be replaced when fitting new front struts?
Yes, it’s recommended. The labour overlaps, and a fresh mount and bearing protect the new damper, improve steering feel, and help avoid noises. Follow up with a wheel alignment to keep tyre wear even.