Compatablity Questions

I have a D15 in my DX currently and have a D16A on the stand in my garage. Will the new water pump, timing belt and clutch from the D15 work with the D16?

Im guessing, and I may be wrong here, that the parts from your DX engine will most likely work fine with your d16

The timing belts are different (different part numbers)
The clutch has the same clutch disc, but different pressure plates
The water pumps are the same

http://www.hondaautomotiveparts.com