Wheels from Renault Arkana on Renault Trafic: compatible?

No, the centre bore is too small

Same 5x114.3 PCD, but the centre bore of the wheels from Renault Arkana (66.1 mm) is smaller than the hub of Renault Trafic (100 mm): they will not fit without being re-bored by a professional.

Renault Arkanafrom 2020Renault Trafic1980–2001
PCD5x114.34x160 / 5x118 / 5x114.3
Centre bore66.1 mm100 mm
ThreadM12x1.50Ecrous - 14x1.50
Original wheels ≈7Jx16 ET35 R
≈6Jx14 ET36
≈6.5Jx16 ET50

≈: width estimated from the original tyre size.

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 Renault Trafic (Ecrous - 14x1.50), 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 Renault Trafic on Renault Arkana?