Parts for your 2009 Mitsubishi Outlander-Rack boots

2009 Mitsubishi Outlander rack boots — what they do and when to replace them

Rack boots are absolutely relevant to the 2009 Mitsubishi Outlander. Technical sources including the Mitsubishi Outlander 2007–2013 Service Manual (Group 37: Steering) and the Mitsubishi ASA electronic parts catalogue identify a rack-and-pinion steering gear with bellows-type dust boots fitted to each end of the steering rack. Workshop data providers used in Australia and New Zealand, such as Autodata, also depict these boots as standard equipment.

On the Outlander, the rack boots (also called steering gear bellows) protect the inner tie rod joints and the rack’s end seals from grit, water and road spray. They flex as the steering moves, keeping contaminants out while allowing air to move in and out of the bellows. By keeping the muck out, the boots help the inner joints last longer and reduce the chance of power steering fluid weeping from worn rack seals on hydraulic systems.

For servicing in Aussie and Kiwi conditions—dust, corrugations, winter slush and the odd water crossing—regular inspection goes a long way. A good rule is to check the rack boots at every service or at least every 10,000–15,000 kilometres. Look for splits, perishing, loose or missing clamps, oil inside the boot, or a boot that’s ballooned or collapsed. Any tear or clamp failure lets contaminants in and should be sorted quickly.

Replacement is straightforward for a competent home mechanic, but a few tips help:

• Replace in pairs if one has failed—age and exposure are usually similar left to right.
• Use quality OE-style clamps, avoid flimsy zip ties that can loosen.
• Don’t pack the boot with grease. Follow service manual guidance—only a light smear on the inner joint if specified.
• If the outer tie rod end is removed or the locknut moved, a wheel alignment is wise. Even careful marking can be a touch out.
• If your rack uses a small breather/balance hose between boots, make sure it’s reconnected and not blocked.

If there’s power steering fluid inside a boot, that points to an internal rack seal issue rather than just a boot problem—time for deeper diagnosis. Keeping the rack boots healthy on a 2009 Outlander is cheap insurance for smooth steering, even tyre wear and a quieter, longer-lived steering rack.

Popular questions about 2009 Mitsubishi Outlander rack boots

How long do rack boots typically last on a 2009 Outlander?
In normal city and highway use, they can last many years, often well past 100,000 kilometres. In harsher conditions—unpaved roads, heat, UV and road grime—they can harden and crack sooner. Inspect them every service and replace at the first sign of perishing or a split.

Do I need a wheel alignment after replacing a rack boot?
If the outer tie rod end or the adjustment locknut is disturbed, get an alignment. While careful measuring can get you close, even a small change can affect tyre wear and steering feel. If you can swap the boot without altering the toe setting, you may get away without it—but it’s safest to check alignment.

Is oil inside the rack boot normal?
No. A light film of grease on the inner joint is normal, but power steering fluid pooling inside a boot suggests an internal rack seal leak. Replacing just the boot won’t fix that—have the steering rack assessed before the issue worsens.