Parts for your 2009 Mazda Premacy-Rack boots

2009 Mazda Premacy rack-boots

Rack-boots are absolutely relevant and used on the 2009 Mazda Premacy (Mazda 5, CR series). Technical documentation such as the Mazda Premacy/Mazda 5 (CR) Workshop Manual, Steering System – Steering Gear and Linkage, and the Mazda Electronic Parts Catalogue list the steering gear dust boots (rack boots) and boot bands as serviceable components on this model. General references like the Haynes manual for Mazda 3 & 5 (mid-2000s to 2010) also describe the bellows-type rack boots fitted over the inner tie rods on the rack-and-pinion steering gear. So yes, this vehicle runs rack-boots, one on each side of the steering rack.

On the 2009 Mazda Premacy, the rack-boots do a simple but crucial job. They’re the accordion-style rubber bellows that seal the ends of the rack-and-pinion housing and cover the inner tie rod joints. Their purpose is to keep water, road grit, and dust out of the inner joints and off the rack bar, while letting the steering move freely lock-to-lock. This helps the grease stay clean, protects the rack and inner tie rods from premature wear, and avoids the vague steering feel that comes when dirt gets into the works. On power-assisted racks, finding power steering fluid trapped inside a boot is a red flag for an internal rack seal leak, not a function of the boot itself.

As part of routine servicing, the rack-boots should be inspected at each service interval (typically every 10,000–15,000 km in AU/NZ schedules). They’re easy to eyeball: look for splits in the bellows, oiliness on or around the boots, loose or missing clamps, and any signs of chafing. If a boot is torn, replace it promptly and consider doing both sides given age and exposure. Always use new boot bands/clamps when refitting, ensure the boot sits in its grooves without twists, and clamp with the steering centred so the bellows aren’t preloaded. After any tie-rod or boot work, a wheel alignment is a must.

Replacement is straightforward for a competent home mechanic: separate the outer tie-rod end, count turns or measure to preserve toe, slide off the old boot, clean the rack bar carefully, and slide on the new boot with a light smear of appropriate grease on the inner joint as specified by the service manual. Aussie and Kiwi conditions can be tough on rubber—UV and hot roads can harden and crack the material—so it’s common to see boots needing attention around the five-to-ten-year mark or 80,000–120,000 km.

• Common symptoms of bad rack-boots: split bellows, oily residue, clicking or clunking over bumps, vague steering, or WoF/rego inspection failures.
• Best practice: choose quality OE-equivalent boots, replace bands, and book an alignment after the job.

Popular questions about 2009 Mazda Premacy rack-boots

How often should rack-boots be replaced?
There’s no strict time limit, they’re replaced on condition. Inspect at every service and replace if cracked, split, greasy/oily, or if clamps are loose. In AU/NZ conditions, many see replacement somewhere between 80,000–120,000 km or 5–10 years.

Can rack-boots be changed at home?
Yes, with basic tools and some care. The trickiest bits are freeing the tie-rod end without damaging the boot or threads and correctly clamping the new boot. Always get a wheel alignment afterwards to avoid uneven tyre wear.

Is it safe to drive with a torn rack-boot?
It’ll drive, but it’s not wise. Contamination can chew out the inner tie rod and damage the rack, leading to play, noise, and costly repairs. If fluid is found in the boot, the rack may be leaking internally and should be inspected promptly.