Parts for your 2018 Subaru Impreza-Rack boots

2018 Subaru Impreza rack-boots: what they do and when to replace them

Yes, the 2018 Subaru Impreza is fitted with rack-boots (also called steering rack bellows). This is confirmed in Subaru’s technical literature: the 2018MY Impreza Service Manual (Steering – Rack and Pinion) specifies bellows on both ends of the rack, and Subaru’s Electronic Parts Catalogue lists left and right steering gear bellows for the model. Even though the Impreza uses electric power steering, those boots are still essential.

On this Impreza, the rack-boots shield the inner tie rods and the rack bar from road grit, water, and mud, and they help keep the rack’s grease where it belongs. When a boot perishes or splits, contaminants work their way in, accelerating wear of the inner tie rods and rack bushings, and corrosion can creep in. Left long enough, that can turn into loose steering, knocks over bumps, and a costly rack replacement.

For routine servicing, a quick visual check of both boots should be part of every service interval. In Aussie and Kiwi conditions—heat, UV, and the odd gravel road—rubber can age faster, so an annual inspection or every 10,000–15,000 km is a good rule of thumb. WOF/rego inspections often flag perished or torn boots too.

• What to look for:
  • Cracks, splits, or oil/grease weeping from the boot
  • Loose or missing boot clamps
  • Water or grit inside the boot when compressed by hand
  • Clicking/knocking from the front end or vague steering feel

Replacement is straightforward for a competent DIYer, but most owners will prefer a workshop. The process involves removing the front wheel, loosening the outer tie-rod end, sliding off the old boot and clamps, then fitting a quality replacement boot with proper clamps. On many Subaru racks, a breather/vent tube links the boots—make sure it’s reconnected and unobstructed. Because the tie-rod end is disturbed, a wheel alignment is recommended straight after.

Practical tips:

• Use OE or high-quality aftermarket boots and metal clamps (not cable ties)
• Replace in pairs if the mate looks aged
• Keep grease and sealing surfaces clean during install
• Book an alignment to protect your tyres and steering feel

It’s a modest-cost part that protects an expensive steering rack. Catching a tired boot on a 2018 Subaru Impreza early will save dollars and drama down the track.

Does the 2018 Subaru Impreza have rack-boots?

It does. Subaru’s 2018MY Impreza Service Manual (Steering – Rack and Pinion) specifies bellows/boots on both ends of the electric steering rack, and the Subaru Electronic Parts Catalogue lists the left- and right-hand steering gear bellows for this model.

How often should rack-boots be replaced on a 2018 Impreza?

There’s no set kilometre interval. Inspect them at every service and replace as soon as cracks, splits, or loose clamps show up. In local conditions with heat and UV, expect inspection at least annually or every 10,000–15,000 km.

Is it safe to drive with a torn rack-boot?

Short trips might be possible, but it’s not a good idea. A torn boot lets water and grit into the rack, which can quickly damage the inner tie rod and rack components. It may also fail a WOF/rego check. Get it replaced promptly and have the wheel alignment checked.