somewhere is a thread I did on this I did a few years ago...
Waterpump bypass hose or "S" hose = Gates 19598. When searched by year, make, model, engine, this hose is listed ONLY for the non-turbo 3.8 V6. Dayco does not make an alternate. tired of vendors listing this Gates hose as something that they specifically had made and sell it for $25+ when it is just a $6 hose made by Gates.
Waterpump to pipe 1 (3/4 inch hardpipe from heater core) = Gates 19603. Shape is correct, have to cut off a little from the ends.
Heater core outlet to pipe 1 = Gates 28474 OR Dayco 80411. Both are cut to fit.
Pipe 2 (5/8 inch hardpipe from manifold) to heater valve = Gates 28466 OR Dayco 80400. Both are cut to fit.
Heater valve to heater core inlet = Gates 28466 OR Dayco 80400. Both are cut to fit.