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Ships within 48 hours · Estimated delivery Sep 7 - Sep 12
VNL (430 / 630 / 670 / 780 / 860)
Carrier X4 7500
Fram: P8335
Eaton: 821601
Verify your engine voltage (24V vs 12V) before ordering — the 12V version is a separate PAI part
Evaporator Core For Peterbilt and Kenworth | Replaces W2078001 Isolator Assembly VNL (430 / 630 /HVAC evaporator core for Peterbilt and Kenworth heavy duty truck cab air conditioning systems. Replaces Paccar W2078001, the parallel flow aluminum core that mounts inside the dash HVAC box and absorbs cabin heat as R 134a refrigerant evaporates across its tubes the failure point that produces warm air only AC and refrigerant system leaks under the dash. Signs You Need a New Evaporator Core AC system loses charge repeatedly with no visible leak at the
