Here are the assembly links for the various housings
Installation diagram DAF Euro 5 - CF & XF105
Installation diagram ECOLOG Tier 4F Mercedes DPF & SCR engine
MAN Euro 5 installation diagram - All compatible vehicles
Assembly diagram PONSSE Tier 4F Mercedes DPF & SCR engine
RENAULT DXi Euro 5 assembly diagram (Prémium, Magnum, Midlum)
SCANIA Euro 5 installation diagram