Replacing an evaporator on a Cruise fridge is not a do-it-yourself job. The alunimum tubing has to be soldered to copper and the system should be vacuumed down to remove moisture. After the new evaporator is installed, the system will need to be recharged.

Cruise model evaporators do not have disconnect fittings, and so need to be soldered into the fridge. 

Product Image Item Name- Price
Small O-shaped evaporator for Cruise 42, no couplings

Evaporator (O) Small 4L 9 1/2" x 8 1/4" x 3 1/3" 240 x 210 x 85mm No couplings, longer tubing for remote-mounted compressor on model ... more info

Model : IS-G026
Manufacturer : Indel Marine
Weight : 5

O-shaped evaporator for Cruise 49/65, no couplings

"O" shaped replacement evaporator for Isotherm Cruise refrigerators models Cruise 49/65, Classic and Elegance models. No couplings. ... more info

Model : IS-SBF00010AA
Manufacturer : Indel Marine
Weight : 12

Evaporator for Cruise 85/130, no couplings

Replacement evaporator for Isotherm Cruise 85/130 refrigerators. No couplings. Dimensions: 8 1/5" x 13 3/8" x 3 7/8". Service Note: ... more info

Model : IS-SBF00039AA
Manufacturer : Indel Marine
Weight : 12

Evaporator (O) Large No couplings 15" x 9" x 5.5"

Evaporator (O) Large 14L  No couplings. 15" x 9" x 5.5" Service Note: System must be recharged after changing evaporator. ... more info

Model : IS-SBF00020AA
Manufacturer : Indel Marine
Weight : 15