Parts for your 2023 Subaru Outback-Rack boots

2023 Subaru Outback rack-boots: what they are and when to replace them

Yes, the 2023 Subaru Outback uses rack-boots. Technical documentation including the Subaru Factory Service Manual (Steering/EPS sections), Subaru New Car Features for the sixth‑gen Outback (BT), and the Subaru Genuine Parts catalogue for 2020–2024 Outback models all show the electric power steering rack-and-pinion assembly fitted with protective bellows (rack-boots) on both sides. These boots shield the inner tie rods and rack bar from grit, water and road splash, which is essential for smooth steering and long service life.

On a 2023 Outback, the rack-boots (sometimes called steering rack gaiters or bellows) sit under the front of the car, one on each end of the steering rack. Their job is to keep dust, water, and road grime away from the polished rack shaft and inner tie rod joints. Even though the Outback runs electric power steering (so there’s no hydraulic fluid to leak from the rack itself), a torn or loose boot can still let in contaminants, chew out the inner tie rod, and eventually lead to play in the steering, uneven tyre wear, and a pricey rack replacement.

There’s no fixed time-based replacement interval for rack-boots, they’re a condition-based item. For Aussie and Kiwi conditions, it’s smart to have them inspected at every scheduled service when the Outback’s underbody is already being checked. Look for cracks, splits at the concertina folds, perished rubber, missing or loose clamps, or grease weeping out. If there’s any damage, replace the boot straight away and re-grease the inner joint to keep moisture out.

When replacement is needed, a proper job involves:

• Removing the outer tie-rod end and sliding the old boot off without nicking the rack surface
• Cleaning the rack area, applying the specified grease to the inner joint, and fitting a quality boot
• Securing the inner and outer clamps to OE spec so the boot seals but isn’t pinched
• Refitting the tie-rod end at the original length and performing a wheel alignment

Tell-tale signs the Outback’s rack-boots need attention include a knocking or vague feel over bumps, visible splits in the boot, or damp, gritty grease around the inner tie rod. Drivers who regularly cover gravel roads, beaches, snow, or muddy tracks should be extra vigilant—those conditions accelerate wear. Using genuine or high-quality aftermarket boots pays off, as cheaper rubber can harden and crack sooner in local climates.

Keeping the rack-boots healthy is a simple, low-cost bit of preventative care that protects the steering gear and helps the Outback track straight, save tyres, and feel tidy on the road.

Popular questions about 2023 Subaru Outback rack-boots

Do all 2023 Outbacks have rack-boots?
Yes. The 2023 Outback’s electric rack‑and‑pinion steering uses a bellows-style boot on each side. Factory service literature and Subaru parts listings show these boots as standard components protecting the inner tie rods and rack bar.

How long do rack-boots typically last?
There’s no set lifespan. In city and highway use they can last many years, but gravel, mud, salt air and harsh UV can crack them earlier. Have them checked at every service and replace at the first sign of splitting or perishing.

Is it safe to drive with a torn rack-boot?
It’ll still steer, but it’s not a good idea. A torn boot lets water and grit into the inner joint and onto the rack surface, which can quickly wear out components and lead to costly repairs. Replace the boot promptly and get an alignment.