Parts for your 2005 Mitsubishi Outlander-Rack boots

2005 Mitsubishi Outlander rack-boots: what they do and when to replace them

Based on the Mitsubishi Factory Service Manual (2003–2006 Outlander, Group 37A – Steering) and the Mitsubishi ASA Electronic Parts Catalogue for CU2W/CU5W models, the 2005 Mitsubishi Outlander uses a rack-and-pinion steering gear fitted with protective bellows on both sides, commonly called rack-boots or steering rack gaiters. Major aftermarket catalogues for this model also list replacement rack-boots and clamp kits, confirming they’re a standard, serviceable item on this vehicle.

On the 2005 Outlander, rack-boots keep the steering gear happy by sealing out water, mud, and road grit while letting the rack slide freely lock-to-lock. They also retain lubricant around the inner tie rods and help protect the rack bar and seals. When a rack-boot splits or its clamps loosen, contaminants get in and grease gets out, which can accelerate inner tie rod wear, create notchy steering, and even allow power steering fluid to pool inside the boot if an internal rack seal starts weeping. It’s a small, inexpensive part that guards a very pricey steering rack.

As part of servicing a 2005 Outlander’s rack-boots, it’s smart to inspect them at each service or about every 10,000–15,000 kilometres—especially if the vehicle sees gravel roads, beach launches, or frequent wet weather. Look for hairline cracks in the bellows folds, perished rubber, missing or loose clamps, and any oily residue. A clean, supple boot that isn’t twisted on the tie rod is what you want. If one boot’s crook, replacing them in pairs keeps things even, and using quality EPDM rubber boots helps them last.

Replacement is straightforward with basic tools. The outer tie-rod end is released from the knuckle, the threads are counted or measured to help preserve toe, then the old boot and clamps come off. The new rack-boot slides on, the breather orientation is set correctly, and proper stainless clamps are crimped—skip the cable ties. If the inner tie rod is disturbed, torque it to spec and organise a wheel alignment, even if you’re careful, it’s wise to check alignment afterwards. If fluid is found inside a rack-boot, that points to an internal rack seal issue, and the best fix is a rack overhaul or replacement rather than just swapping the boot.

• Common signs: cracked bellows, grease or fluid on the boot, clunks over bumps, steering that feels notchy, uneven tyre wear.
• Best practice: inspect regularly, replace in pairs, and align after any steering work.

Do all 2005 Outlanders have rack-boots?
Yes. All first‑gen 2005 Outlander variants (2WD and AWD) run a rack‑and‑pinion steering gear with a protective bellows boot on each side. The Mitsubishi workshop manual illustrations and the OEM parts catalogue both list left and right “Boot, Steering Gear” with corresponding clamps.

How long do the rack-boots last and when should they be replaced?
Lifespan varies with climate and use—anywhere from 5–10 years is common. Replace a rack-boot at the first sign of cracking, tears, perishing rubber, or any oil/grease contamination. In NZ and Australia, a torn rack-boot can cause a WOF/roadworthy fail, so catching it early avoids bigger bills.

Is a wheel alignment needed after replacing a rack-boot?
Often, yes. Even if the tie-rod end threads are counted and refitted carefully, toe can shift a touch. A post‑job alignment protects tyres and ensures the Outlander tracks straight and true.