I'm wondering what the o ring sizes are for the hill mk4 hand pump piston seal o ring size and the o rings for the desicant filter and all the other o rings just to have on hand.
Hill mk4 hand pump o ring sizes???
- Thread starter anonymous_.457
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Hills have a Z4128-401 Air Compressor Repair Kit on their website for the Mk 4 pump---...but they never mention o ring sizes.The rebuild set can be ordered.otherwise you may download and use the OLYPSYS android o ring app which can give you approx o ring sizes ...im using their Hills mk 3 pump since quite long.
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