Genuine Part no 4.744-109.0 from an authorised Karcher dealer
Your part may also be stamped with 5.042-860
Please click on Karcher / Pressure Washer Part category in our shop for many other Karcher parts
For select Karcher models including but not limited to:
HD 551C
HDS 551C Eco
HDS 600
HDS 601C
HDS 601C Eco
If you are unsure if this is the correct part for your machine please feel free to ask as many Karcher parts look similar