Parts for your 2018 Subaru Forester-Suspension bushes

2018 Subaru Forester suspension-bushes: what they do and when to replace them

Yes, the 2018 Subaru Forester absolutely uses suspension-bushes throughout its chassis. Technical sources including the Subaru Forester SJ (MY2018) Factory Service Manual and the Subaru Genuine Parts Catalogue identify multiple rubber bushes fitted to the control arms, stabiliser (sway) bars, trailing arms, lateral links, and rear subframe mounts. These components isolate vibration, locate suspension geometry, and help keep the ride quiet and controlled.

On this Forester, suspension-bushes (often just called “bushes” or “bushings”) provide a flexible, noise-absorbing joint between metal parts. They limit harshness over corrugations, allow the arms to move smoothly, and keep wheel alignment settings steady under brakes and cornering. When they age, crack, or separate, the vehicle may wander on the motorway, tramline on rough bitumen, or thump over speed bumps. Tyre wear can go patchy and braking stability can drop off. Subaru’s workshop literature for the SJ platform also notes stabiliser bar bush wear as a common NVH contributor.

• Common Forester (SJ) bushes: front lower control arm inner bushes, front and rear stabiliser bar bushes and links, rear trailing arm and lateral link bushes, and rear subframe mounting bushes.

For servicing, a quick visual and lever-check of all suspension-bushes every 20,000 km or annually is a smart move, especially if the Forester does gravel touring or tows. Look for perished rubber, splits, oil-soaking, or excessive arm movement. If play is found, replace in pairs on the same axle. Many front bushes can be pressed in, but on higher-kilometre cars it’s often more practical to fit complete arms with new bushes pre-installed. Either way, the bolts should be final-torqued at normal ride height to prevent preloading the new rubber.

After bush replacement, a four-wheel alignment is essential to bring camber, caster, and toe back into spec. Genuine-style rubber bushes preserve factory ride and NVH, while quality polyurethane options can sharpen steering at the cost of a touch more road feel. Expect typical service life anywhere from 80,000 to 150,000 km depending on roads, load, and climate. If the Forester starts clunking on turn-in, shimmying under brakes, or chewing the inner edges of tyres, it’s time to have the bushes checked.

Technical sources referenced: Subaru Forester SJ (2014–2018) Factory Service Manual, Subaru Genuine Parts Catalogue for MY2018 Forester, Subaru service procedures for front/rear suspension inspection and stabiliser system.

Popular questions about 2018 Subaru Forester suspension-bushes

What are the signs my Forester’s bushes are worn?
Common tell-tales include clunks over bumps, vague steering, braking shimmy, and uneven tyre wear. You might also spot cracked or oil-soaked rubber on the arms or stabiliser mounts. If the car feels nervous in crosswinds or follows ruts, the front control arm bushes are prime suspects.

How often should suspension-bushes be replaced?
There’s no fixed interval, condition-based replacement is the go. Inspect annually or every 20,000 km. Many Foresters make it well past 100,000 km on original bushes, but rough roads, towing, or coastal climates can shorten life. Replace when there’s play, splitting, or persistent NVH issues.

Rubber or polyurethane—what’s better for a daily-driven Forester?
For most daily and family use, quality rubber (OE-equivalent) keeps the Forester quiet and compliant. Polyurethane can sharpen response and durability for spirited or off-road use, but may add a bit more vibration and road texture. Choose based on comfort vs. precision priorities.