I'm thinking they are Freightliner , I'll check my wiring diagrams .
I know mine carry a 135 amp rating, the 2 fuses on the right side that is,
They protect the main 12 volt supply , battery bay to dash , one is chassis battery the other is coach.
99% sure the relay/solenoid , on the left is starter, intake manifold heater relay is on the engine on my Cat.
I'll go over my diagrams and update with any different info.
My wiring schematic, shows 1 ( 135 amp ) for the chassis wiring protection.
F/L may place the second one for use by the manufacturer.
F/L , part number 181135P010, old price of $23.14 ( Bussman Relay 135 amp is the other info)
If you call the F/L free help line 1-800-385-4357 have your serial number handy when you call.
Ask about joining " Access Freightliner " for online parts, wiring and other info, takes a few weeks for clearance , but well worth the wait.