Parts for your 1991 Nissan Primera-Wheel studs nuts

1991 Nissan Primera wheel studs and nuts

Technical sources confirm the 1991 Nissan Primera (P10) uses separate wheel studs and wheel nuts, so this part is absolutely relevant. The Nissan Primera P10 Factory Service Manual (1990–1996) shows pressed-in studs on the hubs with separate nuts in the Front and Rear Axle sections, the Nissan FAST electronic parts catalogue lists the wheel stud (group 40222) and wheel nut (group 40224) for P10, and the owner’s manual refers to tightening the “wheel nuts” in a star pattern to the specified torque. That means the Primera doesn’t use European-style wheel bolts.

On a 1991 Primera, the wheel studs and nuts clamp the wheel firmly to the hub, keeping the brake rotor correctly located and the wheel centred. They cop a lot of load—cornering, braking, potholes—so they need to be in good nick. Nissan typically uses M12 x 1.25 studs on this era of cars with a 60° taper-seat nut, and keeping the correct nut style is important for proper seating on the wheel.

Servicing is straightforward but worth doing right. Always tighten wheel nuts with a torque wrench to the factory spec in the owner’s manual or FSM (many Nissans of this vintage sit around 98–108 N·m). Use a star pattern, and recheck after 50–100 km, especially after tyre or brake work. Avoid lubricating the threads or the cone seat unless Nissan specifically calls for it—the torque values assume clean, dry threads.

• Replace studs or nuts if threads are stretched, cross‑threaded, rusty, or if the nut’s taper is chewed.
• If a stud spins in the hub, the knurl may be damaged—match the replacement stud’s knurl diameter to the hub or the hub may need repair.
• Press new studs in squarely, don’t wind them in with a nut, which can gall threads or pull them crooked.
• Keep the hub face and wheel mounting pad clean so clamping force isn’t lost.

Common signs it’s time to act include nuts that won’t torque smoothly, a clicking wheel under load, or one that works loose after driving. Don’t drive with missing or broken studs—a single failure can overload the rest and lead to more shearing. Quality OE‑equivalent studs and matching taper-seat nuts are inexpensive insurance for safe, drama‑free kilometres.

FAQs

What thread size are the wheel nuts on a 1991 Nissan Primera?
Most P10 Primeras use M12 x 1.25 studs with 60° taper-seat nuts. Always confirm against the vehicle’s existing hardware or parts catalogue, as wheel changes over the years can mix styles. Avoid mag‑seat or flat‑washer nuts unless the wheel specifically requires them.

What’s the correct torque for the wheel nuts?
Check the owner’s manual or the Factory Service Manual for the exact figure. Many period Nissans specify roughly 98–108 N·m. Tighten in a star pattern on clean, dry threads, then recheck after 50–100 km.

Can a 1991 Primera be driven with one broken wheel stud?
It’s not recommended. The remaining studs take extra load and can fatigue, especially with repeated braking and cornering. Replace the damaged stud (and any suspect nut) promptly and torque correctly to keep the wheel secure.