Evaporator With Heater Core LATE serial numberOEM part numbers 1974632C3, 135777C2 Item Information Fits: Late 86 and 88 Series Tractors Includes 903 705 Expansion Valve Additional Information Includes Block Type Expansion Valve Serial Number 107807 and Above Fits Tractors with 88 Series Cab Tractors Roof Mounted Receiver Drier Specifications VALVE TYPE Block Type FITTING TYPE O Ring CORE LENGTH 25" CORE HEIGHT 6" CORE WIDTH 5" OVERALL LENGTH 32 1 2" OVERALL HEIGHT 6 1 4" OVERALL WIDTH 8" FITTING