Wheels from Dodge RAM 1500 on Jeep Wagoneer: compatible?

No, the centre bore is too small

Same 6x139.7 PCD, but the centre bore of the wheels from Dodge RAM 1500 (78.1 mm) is smaller than the hub of Jeep Wagoneer (89.1 mm): they will not fit without being re-bored by a professional.

Dodge RAM 15001993–2001Jeep Wagoneer1978–1984
PCD5x139.7 / 6x139.76x139.7 / 5x114.3
Centre bore78.1 mm89.1 mm
ThreadEcrous - 1/2 - 20 UNEcrous - 1/2 - 20 UN
Original wheels ≈7Jx16 ET31
≈7.5Jx17 ET25
≈8.5Jx17 ET26
≈8.5Jx18 ET26
R
≈7Jx15 ET10
≈8.5Jx18 ET19

≈: 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 Jeep Wagoneer (Ecrous - 1/2 - 20 UN), 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 Jeep Wagoneer on Dodge RAM 1500?