Parts for your 2017 Subaru Forester-Bump stops

2017 Subaru Forester bump-stops

Yes, the 2017 Subaru Forester (SJ series) is fitted with bump-stops on both the front MacPherson struts and the rear shock absorbers. Technical references include: Subaru Forester SJ Service Manual (Front Suspension > Front Strut > Exploded View), which shows the dust cover and stopper (jounce bumper) as part of the assembly, Subaru Forester SJ Service Manual (Rear Suspension > Shock Absorber > Exploded View), which includes the stopper with the rear shock, Subaru Electronic Parts Catalogue (FAST) listings for SJ Forester noting “stopper” components for front struts and rear shocks, and major aftermarket catalogues (e.g., KYB/Monroe) that specify boot-and-bump-stop kits for 2014–2018 Forester models.

On the 2017 Forester, bump-stops are small but mighty. They’re the progressive foam “jounce” blocks inside the front struts and on the rear shocks that catch the last bit of suspension travel. Their job is to prevent metal-to-metal bottoming, protect the strut/shock internals, keep the coil springs from binding, and tame harsh impacts when the car cops a big pothole, corrugations, or a heavy load. Because they compress progressively, they smooth out those big hits and help the Forester stay composed, quiet and safe.

As part of regular servicing, it’s smart to inspect the bump-stops any time the shocks/struts are checked, or at roughly 60,000–100,000 km, sooner if the vehicle tows, runs heavy loads, or sees rough roads. They’re made from microcellular polyurethane foam and can crack, crumble or oil-soak over time. Telltale signs include a sharp “clunk” or bang on big bumps, a harsh bottom-out feel, torn dust boots, or visibly perished bump-stops when the spring/strut is removed.

When replacing, it’s good practice to:

• Renew bump-stops and dust boots whenever fitting new shocks/struts, and replace in axle pairs.
• Check for shock leaks, oil can degrade the bump-stop foam quickly.
• Use quality parts sized for the SJ Forester so the progressive rate and travel are correct.
• If the Forester is lifted or runs larger tyres, consider extended or appropriately trimmed bump-stops to prevent coil bind or tyre rub.
• After front strut work, get a wheel alignment, and torque all fasteners to Subaru specs.

Leaving a dead bump-stop in place risks bending a strut rod, smashing top mounts, or damaging tyres from uncontrolled bottoming. Fresh stops and intact boots keep the suspension sweet, the ride quiet, and the Forester ready for the next mission.

Popular questions about 2017 Subaru Forester bump-stops

How do they know their Forester’s bump-stops are shot?
Clues include a sharp bang over big dips, harsher ride on rough tracks, and visible cracking or crumbling when the strut/shock is out. Torn dust boots often go hand-in-hand. If shocks are leaking, the bump-stops usually aren’t far behind.

Because the stops live inside the strut assembly (front) and on the shock (rear), a proper inspection generally happens when doing shocks, springs, or front-end work.

Should bump-stops be replaced with new shocks/struts?
Yes, it’s recommended. New dampers with old, perished bump-stops can still bottom out harshly. Replacing the stops and boots at the same time is affordable insurance that protects the new gear and keeps the ride consistent.

On lifted or heavily loaded setups, choose stops that match the new travel so the springs don’t bind and the tyres don’t foul.

Will changing bump-stops affect ride height or comfort?
They don’t change static ride height, but they do influence how the car feels on large bumps. Fresh, correctly sized stops bring back the progressive “catch” at the end of travel, reducing thumps and keeping the cabin calmer.

If the stops are too short or too hard, bottoming can feel nasty, too long, and they can engage too early. Stick with parts intended for the SJ Forester or a reputable setup for any lift.