FASS 150 Upgrade

I have a FASS 150 on my class 8 semi with a Caterpillar 3406 engine. I am wondering if I can upgrade to the 220 gph motor only or if I need the whole system. I have included pictures of the system I currently have.

Thanks.









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Pretty sure you can just get the motor

Just email them. I bet they'll help you out.