Room slide/bed solenoid valve # is correct.
Jack solenoid valve- if you purchase a new valve they will send a RAP0642-12V which has a plastic hex shaped end cap that has a 1/4" hex nut relief like the room slide valves, but under a prtective snap-off cap. If you send in a t-handle jack valve for rebuilding, it is a RAP0642 (no "-12V"). HWH should be able to handle the translation pretty seamlessly. Only difference is the end cap/pressure relief (hex nut vs. T-handle); the RAP0642 and RAP0642-12V are completely interchangeable, as are all HWH jack solenoids w/two wires EXCEPT the hex-shaped units w/the transistor screwed to the side of the hex case (those require an exact replacement, but probably predate any Alpine systems).
For replacing the "pump solenoid" (not a valve, but an electrical switch solenoid), IIWM- Cole Hersee 24059, and I'd remote mount it to provide more working room around the pump; this might require a couple of longer #4 cables to/from the solenoid and maybe lengthening the coil wires, but will be well appreciated next time the pump/motor assembly gives issues. Also, the Main & Pump solenoids are usually OEM-mounted right where you'll leak hydraulic fluid on them when changing out valve solenoids, and remote mounting alleviates that problem.
For a temp Main solenoid- I also carry a Cole Hersee 24059 (same as for Pump sol.). I haven't Ohm'd the OEM Main yet to see what the coil will draw in amps; could be the CH is a good permanent replacement also, but need to check the amp draw on the solenoid and on the main 12V cable when pump & motherboard are operating to see if its good w/impunity.
Baja-tested '08 2-slide 36'
Alpine: The Ultimate DIY'er Project