Volvo hydraulic steering hoses

[nfluester]

I wanted to add autopilot to my D6's with DPH drives does anyone know the standard thread generally used here so i can get some hoses made up?

 

[Andyroonot]

These don't look like the VP version, although may be an early version that has since superseded. Current version is a 4-way block with female fittings & the hoses and blanking caps are all male thread - see attached image, item #5. Current production is a 5/8-18 UNF