Parts for your 2021 Mitsubishi Outlander-Rack boots

2021 Mitsubishi Outlander rack boots

Mitsubishi Motors’ workshop literature for the Outlander’s rack-and-pinion steering, along with the Mitsubishi ASA/EPC parts catalogue, identifies “steering gear bellows” (commonly called rack boots) fitted on both sides of the rack for 2021 models. So rack boots are relevant and used on the 2021 Mitsubishi Outlander.

On the 2021 Outlander, the rack boots are the ribbed rubber bellows that seal the inner tie-rods and rack ends from dust, water, and road grit. Most 2021 models use electric power steering, but whether it’s electric or hydraulic, those boots are crucial. They keep the grease in, keep the nasties out, and help the rack glide smoothly so the steering feels consistent and precise. If a boot splits, the rack can cop corrosion or wear, and on hydraulic variants a wet, oily boot can be an early clue the rack seals are weeping.

As part of routine servicing, it’s smart to check the rack boots every service interval or at least annually. A quick visual from lock-to-lock will show if the bellows are cracked, torn, loose on the clamp, or rubbing. After beach runs, floodwater, or plenty of gravel kays, give them an extra look. They’re inexpensive compared with a steering rack, and timely replacement can save a heap.

• Signs it’s time: visible splits or perishing, grease splatter near the inner tie-rod, dirt inside the bellows, or a damp/oily boot on hydraulic systems.
• Good practice: replace boots in pairs, renew clamps, avoid twisting the bellows on install, and check toe alignment afterwards.

Replacement involves removing the outer tie-rod end, sliding the old boot and clamps off, cleaning the area, then fitting the new bellows with fresh clamps. Mark or measure the tie-rod position before removal to help preserve alignment, and torque everything to spec on reassembly. A wheel alignment check is recommended to keep tyres happy.

If a boot has been torn for a while, it’s worth inspecting the inner tie-rod and the rack for play or corrosion. Left too long, grit can chew out the rack, which can lead to heavier steering, knocks over bumps, and even a failed RWC (AU) or WoF (NZ). Professional fitting is quick and affordable, so most owners prefer to have a workshop handle it.

Bottom line: fresh, intact rack boots help the 2021 Outlander steer sweetly and protect an expensive bit of kit. They’re a small part that does a big job.

Popular questions

Does the 2021 Mitsubishi Outlander have rack boots?
Yes. The 2021 Outlander’s rack-and-pinion steering uses protective bellows (rack boots) on each side to seal the inner tie-rods and rack ends, as shown in Mitsubishi service information and parts listings.

How often should rack boots be replaced?
There’s no fixed kilometre interval, they’re replaced on condition. Inspect at every service. In Australia and New Zealand, sun and heat can age rubber, so many boots last 5–10 years, but replace immediately if cracked, split, loose, or contaminated.

Is it safe to drive with a torn rack boot?
Best avoided. A torn boot lets water and grit in, which can damage the rack and inner tie-rods and may lead to a failed RWC/WoF. Short trips to a workshop are usually fine, but plan prompt repair to protect the steering gear.