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MK3 Piston Seal Kit

MK3 Piston Seal Kit

Ref: Z3128-101

14.22

A kit of 3 replacement piston seals. This kit is for the MK3 pump only which can be identified by three concentric rings around the bottom of the painted outer tube. The classic symptom of a problem with this seal is resistance on the upstroke and tendency to recoil back downwards. The piston seal is the workhorse of the pump and it's life can be dramatically shortened by overheating and a lack of lubrication. To maximise the life of this seal please follow the advice on pumping and lubrication in our instructions.