Parts for your 1998 Nissan Pulsar-Wheel studs nuts

1998 Nissan Pulsar wheel studs and nuts – fitment, purpose, and service tips

Referencing Nissan’s Pulsar N15 Series Service Manual (Wheels/Tyres and Front Axle sections) and the Nissan Electronic Parts Catalogue (FAST) for the N15 platform, the 1998 Nissan Pulsar uses pressed-in wheel studs with separate wheel nuts (not wheel bolts). AU/NZ-delivered 1998 Pulsar models are commonly 4-stud hubs with a 4x100 PCD and M12 x 1.25 thread pitch. That makes wheel studs and nuts directly relevant to this vehicle.

On the 1998 Pulsar, the wheel studs are the threaded pins on the hub, the wheel nuts clamp the wheel to the hub face. Together they provide the clamping force that keeps the wheel secure, centres the wheel on the hub, and maintains brake rotor/drum alignment. Proper clamping stops vibration, protects bearings, and ensures even brake performance.

During routine servicing, it’s smart to:

• Inspect studs for stretched or flattened threads, corrosion, and any signs of impact gun damage.
• Check wheel nuts for cracked seats, cross-threading, or rounding. Replace in sets if wear is uneven.
• Clean hub faces and wheel mating surfaces, keep threads clean and dry. Avoid lubricating threads unless the service data specifically allows it.
• Torque wheel nuts in a criss-cross pattern. Factory specs vary by trim and wheel, but many N15 Pulsars use a torque around 98 N·m. Always confirm against the owner’s/service manual for the exact spec.
• Re-torque after 50–100 km if wheels have been off, especially with new wheels.

If a stud is broken or stripped, individual replacement is straightforward: remove the brake caliper/rotor (or drum) as needed, drive the damaged stud out from the rear, then draw the new stud fully home using a suitable washer stack and a sacrificial nut while holding the hub steady. Use quality M12 x 1.25 studs and the correct 60° taper wheel nuts that match the Pulsar’s wheels. Avoid over-torquing with impact guns, a calibrated torque wrench is the go.

Most AU/NZ 1998 Pulsars are 4x100 PCD with a 59.1 mm hub centre, but some variants and wheels differ. When ordering studs or nuts (or new wheels), confirm PCD, centre bore, thread pitch, and seat type to suit the exact model and wheel design.

Popular questions about 1998 Nissan Pulsar wheel studs and nuts

What size are the wheel studs and nuts on a 1998 Pulsar?
Most AU/NZ N15 Pulsars use M12 x 1.25 wheel studs with a 4x100 PCD and 60° tapered-seat nuts. Always check the vehicle’s placards or parts data for your exact trim and wheels before buying replacements.

What’s the correct torque for the wheel nuts?
A typical spec for the N15 Pulsar is around 98 N·m, but it can vary with wheel type. Use a torque wrench and confirm the exact figure from the owner’s or workshop manual for the specific model and wheels fitted.

Can a single broken stud be replaced, or do they all need changing?
A single damaged stud can be replaced on its own if the others are in good nick. If multiple studs show corrosion, thread damage, or have been over-stressed by impact tools, replacing the set on that hub is wise for even clamping and safety.