Parts for your 2019 Subaru Outback-Rack boots

2019 Subaru Outback rack boots — what they do and when to replace them

Yes, the 2019 Subaru Outback uses steering rack boots (also called rack bellows). Technical documentation confirms it: the Subaru Factory Service Manual for the BS/BN Outback (Steering System – Electric Power Steering) shows the bellows on each end of the rack, and Subaru’s official parts catalogue lists a “Boot – Steering Gearbox” with matching bands/clamps for this model year. Major aftermarket catalogues also supply rack-and-pinion bellows kits specifically for 2015–2019 Outback, reinforcing that they’re a standard, serviceable item on these vehicles.

On a 2019 Outback, the rack boots seal the inner tie-rod joints and the rack end from dust, water, and road grit. They aren’t fluid reservoirs, their job is to keep contaminants out and the factory grease in, so the steering stays light and precise and the rack’s seals aren’t chewed out by grit. Because the Outback uses an electric power steering rack, protecting the mechanical ends is still critical for smooth, quiet operation and long rack life.

Typical causes of failure include age-related cracking, exposure to oil or ATF drips, off‑road dust, or a clamp cutting into the rubber. Once a boot splits, grit and moisture can migrate in, leading to inner tie‑rod play, notchy steering, and premature rack wear. It’s a common WOF/roadworthy fail item if torn.

For servicing, it’s smart to:

• Inspect both boots at every service (around 10,000–15,000 km), turning the steering lock‑to‑lock to see the full bellows.
• Look for splits, perishing, wet grease flung out, or loose/missing clamps.
• Replace boots in pairs if one is damaged, using OE or quality aftermarket parts and proper band clamps (skip cable ties).
• Avoid twisting the bellows on install and ensure any breather/pressure equalisation is clear.
• Book a wheel alignment after replacement, as the tie‑rod end usually needs to come off to fit the boot.

Owners who tow, drive gravel roads, or frequent the beach should check more often, as sand and salt accelerate wear. Done right, fresh rack boots are inexpensive insurance that keeps the Outback’s steering tight, protects the rack, and helps tyres wear nice and evenly.

Popular questions

Do all 2019 Subaru Outbacks have rack boots?
Yes. The Subaru Factory Service Manual and Subaru parts catalogue for the 2019 Outback (BS/BN) both show a bellows boot on each end of the electric steering rack. They’re a normal wear item and are replaceable without changing the entire rack.

How often should rack boots be replaced?
There’s no fixed interval. They’re inspected at routine services and replaced when cracked, split, oil‑soaked, or loose. In typical use they can last many years, vehicles used off‑road or in coastal areas may need them sooner.

Do I need a wheel alignment after boot replacement?
Usually, yes. Fitting a new boot typically means removing or disturbing the outer tie‑rod end, which can alter toe. A post‑job alignment is cheap insurance for steering feel and tyre life.