I have some part numbers to contribute for anyone looking to replace those heater hoses that are no longer available. I measured the inner diameters and found some molded hoses from Napa that resembled ours. You'll need to cut each of these down, but after doing so, I was very pleased with how well they fit on.


Replacement for MB Hose 123-832-94-94 (#1 in OP's photo)
NBH 11935 - Molded Heater Hose 11/16" x 11/16" x 11 31/32"

Replacement for MB Hose 123-832-89-94 (#3 in OP's photo)
NBH 11600 - (Molded Heater Hose 3/4" x 3/4" x 11")

Replacement for MB Hose 123-832-87-94 (#6 in OP's photo)
NBH 13398 - CURVED HOSE

Replacement for MB Hose 123-832-93-94 (#8 in OP's photo)
NBH 7713 - Molded Coolant Hose 3/4" x 3/4" x 5 11/16"


ALSO - I found the appropriately sized (42mm ID) short coolant bypass hose from a company called Performance Products. SKU: 236907

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