Walthers P2K GP30 wheel replacment

Does Walthers use the same type of wheels that Life-like Proto 2K used on the GP30’s? I want to replace the wheels on my Walthers P2K GP30 with semi-scale wheels from NWSL. Does anyone happen to know what part number I need?

Thanks,
Nate

The NWSL catalogue and brochures can be rather confusing, but I am pretty sure you need number 37241-4 for Nickel Sivler (40" diameter, semiscale .088" tread width) Or 37641-4 for weathered.

http://www.nwsl.com/Brochures/371004br-v0603.pdf

Just to add to the confusion, note that 37641-4 has a tread width of 0.064", or P:87 finescale, as opposed to semi-scale 0.088" tread on 37241-4. Unless your trackwork is to P:87 finescale standards, use the 37241-4 wheelsets.