Yes, the hub is identical
Same 5x108 PCD and same 65.1 mm centre bore: wheels from Peugeot 5008 II bolt on and centre on Peugeot 5008 I 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 Peugeot 5008 II is compared with the one from Peugeot 5008 I 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.
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7Jx17 ET42 · 215/65R17 — Check on the car
Compared with the original ≈7Jx17 ET49 on Peugeot 5008 I: shock absorber side −7 mm, wheel arch side +7 mm, tyre diameter +0 %.
Comparison for guidance only (estimated width). Check in detail
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7.5Jx18 ET49 · 225/55R18
Peugeot 5008 I has no 18-inch original wheel in our data: check the approved fitments and caliper clearance.
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 Peugeot 5008 I (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 Peugeot 5008 I on Peugeot 5008 II?