Genuine Part no 4.031-070.0 from an authorised Karcher dealer
Your part may also be stamped with 5.036-592.0
Please click on Karcher / Pressure Washer Part category in our shop for many other Karcher parts
For select Puzzi models including but not limited to:
Puzzi 100
Puzzi 10/1
Puzzi 10/2
If you are unsure if this is the correct part for your machine please feel free to ask as many Karcher parts look similar