Parts for your 2021 Subaru Xv-Rack boots

2021 Subaru XV rack boots — purpose, care and when to replace

Rack boots are fitted to the 2021 Subaru XV (G5X). The model runs an electric power steering rack that still uses bellows-type rack boots on each end to shield the inner tie rods and rack bar. This is documented in Subaru’s Workshop/Service Manual for the G5X XV/Impreza platform (Steering > Rack and Pinion > Bellows/Boot – Removal and Installation), and the Subaru parts catalogue lists Boot – Steering Gear (bellows) for MY18–MY21 XV, confirming they’re standard equipment.

What do they actually do? The boots act like flexible bellows, keeping water, mud and road grit out of the rack housing while holding the correct grease around the inner tie-rod joints. As the rack moves left and right, the boots expand and contract, maintaining a clean, sealed environment so the steering stays light, precise and quiet.

For servicing, they’re a simple item that can save a rack from an early retirement. At each service interval (typically every 10,000–15,000 km), a quick visual check is smart: look for splits, tears, perished rubber, loose or rusty clamps, or grease flung onto the subframe. On an EPS rack there’s no power-steering fluid to leak, but a torn boot can let in water that corrodes the rack bar and inner joints, leading to stiffness, play or a gritty steering feel—especially noticeable after heavy rain, beach runs or gravel-road work.

If a boot is damaged, replacement should be done promptly. Best practice is to fit quality OE-spec bellows and new clamps, avoid twisting the boot during install, and orient the breather/relief features as per the workshop manual. A small amount of the specified grease on the inner joint is normal—don’t overpack it. Because the outer tie rod is usually removed to slip the new boot on, a wheel alignment is recommended afterwards to dial in toe properly.

Drivers who frequently encounter off‑road tracks, roadworks, or coastal conditions should be extra vigilant. Even a small split can let contaminants in. With good boots, the steering rack on a 2021 XV typically lasts the distance, keeping the steering feel tidy and the tyres wearing evenly.

Technical sources referenced: Subaru Workshop/Service Manual for G5X XV/Impreza (Steering section: bellows/boot procedures) and Subaru genuine parts catalogue listing Boot – Steering Gear for MY18–MY21 XV.

Popular questions

Does the 2021 Subaru XV definitely have rack boots?
Yes. Despite using electric power steering, the 2021 XV’s rack still has bellows-type rack boots on both sides. Subaru’s G5X service manual covers inspection and replacement of these boots, and the Subaru parts catalogue lists the Boot – Steering Gear for this model range.

How often should rack boots be replaced on a 2021 XV?
There’s no fixed replacement interval. They should be inspected at every service and replaced as soon as cracks, splits, loose clamps or contamination are found. Owners who drive on gravel, through mud or near the coast may need replacement sooner due to harsher conditions.

Do you need a wheel alignment after replacing a rack boot?
Usually, yes. Boot replacement often requires removing the outer tie-rod end, which alters toe settings. A proper alignment afterwards ensures straight tracking, even tyre wear and a consistent steering feel.