Parts for your 2007 Mazda Premacy-Wheel studs nuts

2007 Mazda Premacy wheel studs and nuts

Yes, the 2007 Mazda Premacy (also known as Mazda5 in many markets) uses wheel studs and nuts, not wheel bolts. This is shown in Mazda’s Premacy/Mazda5 (CR, 2005–2010) Workshop Manual in the Wheels and Tyres section, and in Mazda’s Electronic Parts Catalogue for the 2007 model year, which both illustrate pressed-in hub studs secured by tapered-seat wheel nuts.

On this model, the studs are pressed into the hub and the wheel is clamped with individual nuts. That setup spreads load evenly across the hub face, makes roadside wheel changes quicker, and allows a single damaged stud to be replaced without changing the whole hub. It’s a simple, durable system that suits the Premacy’s family-duty mix of city and open-road driving.

As part of regular servicing, it pays to give the wheel studs and nuts a quick once-over. Look for stretched threads, rounded nut hexes, rust flaking at the stud base, or any sign a nut runs on “crunchy” rather than smoothly. If a nut can’t be turned by hand for the first few threads, stop—cross-threading a stud is an easy way to turn a small job into a big one.

Replacement is straightforward for a trained tech: the caliper and rotor come off, the old stud is driven out, and a new stud is seated squarely from the rear of the hub and drawn in to spec. Most 2007 Premacy variants use M12 x 1.5 threads and a 60° taper-seat nut, but always confirm by VIN or the workshop manual before ordering parts.

Good habits help the hardware live a long life:

• Clean the hub face and wheel mating surface, keep studs and nuts dry and free of grit.
• Do not lubricate threads unless Mazda specifies it, dry threads ensure correct clamping force.
• Tighten in a star pattern with a torque wrench to the handbook spec, then re-check after 50–100 km whenever a wheel’s been off.
• If you’ve had a puncture repair or rotation, ask the shop not to hammer the nuts on with an impact gun—final torque should be done by hand.

If you notice repeated loosening, vibration under braking, or a nut that won’t hold torque, book it in. One weak stud can allow the wheel to fret on the hub, chewing out both the wheel and the hardware. Keeping the Premacy’s studs and nuts in good nick is cheap insurance for stable handling and even tyre wear.

Popular questions about 2007 Mazda Premacy wheel studs and nuts

What torque should the wheel nuts be tightened to?
Always use the torque figure in the owner’s or workshop manual for the exact trim and wheel size. For this platform, workshops commonly see specs around the low-100s N·m range. Use a torque wrench and tighten in a star pattern, then re-check after a short drive.

Can a single damaged wheel stud be replaced, or does the hub need changing?
A single stud can be replaced on its own. The brake caliper and rotor are removed for access, the damaged stud is pressed or driven out, and a new stud is seated from the rear. If multiple studs are damaged or the hub flange is scored, further inspection is needed.

Should anti-seize be used on the wheel stud threads?
Not on this vehicle. The Mazda service information assumes clean, dry threads. Lubricants can alter the torque-to-clamp relationship and risk over-stretching the stud. A light smear of anti-seize on the hub face (not the studs) can help prevent the wheel sticking, but keep it well away from the threads and nut seats.