[Parisjet]

Valid sells a valve replacement part 6X1053 for the 6 pack levelling valve.  I  looked for a different solution to the valves leaking internally.  What I discovered is another part that has the part needed which can be removed and used to replace the valve nipple.  The old nipples are less pliable, brittle and susceptible to internal leakage.  I use a punch to remove the old part but the new ones are easily removed with your fingernails.  I replaced all 12 valve nipples today in both 6 packs.  The part number I ordered was KIP SKPA38.  Valve Nipple Part .  There may be a better solution, please post it.  The "O" ring is size 019.  These valves are normally closed, I used the original springs.  The solenoid coil is HydraForce 4301512 Series 08 DR Coil.

Great write up !  Some additional information on the parts please.  Did you replace the whole valve plunger and seal or just the seal? The part number KIP SKPA38 shows a assembly unit for $8 each but it looks like you could replace just the seal. I went to the Valid site and searched for SKPA38 which returned nothing and the same results with Kleen-rite. I would like to order the seals to keep on hand in case of future leakage.