Yes, the hub is identical
Same 5x98 PCD and same 58.1 mm centre bore: wheels from Alfa Romeo 164 3.0 V6 bolt on and centre on Alfa Romeo 164 Q4 4x4 without rings. You still need to check the offset and tyres, detailed below.
≈: width estimated from the original tyre size.
Wheel by wheel: offset and tyres
Each original wheel from Alfa Romeo 164 3.0 V6 is compared with the one from Alfa Romeo 164 Q4 4x4 of the same diameter: how much closer the wheel gets to the shock absorber or how far it sticks out of the wheel arch, and whether the tyre keeps the same overall diameter.
- ✓
≈6Jx16 ET40 · 195/65R16 — Fits like the original
Compared with the original ≈6Jx16 ET40 on Alfa Romeo 164 Q4 4x4: shock absorber side 0 mm, wheel arch side 0 mm, tyre diameter +0 %.
Comparison for guidance only (estimated width). Check in detail
Before fitting the wheels
An identical hub is not enough: offset, width and diameter change the position of the wheel, and larger calipers can touch a smaller wheel. Original wheels often use bolts or nuts with a specific seat: keep the fixings intended for the wheel, with the thread of Alfa Romeo 164 Q4 4x4 (M12x1.25), tightened to the torque shown on its vehicle page. Finally, check that the size is among the approved fitments for your vehicle. This comparison is for guidance only: have the fitting approved by a professional.
And the other way round: wheels from Alfa Romeo 164 Q4 4x4 on Alfa Romeo 164 3.0 V6?