Four Seasons A/C Evaporator Core P/N:54965
Bring cold air back to the cab with the Four Seasons A/C Evaporator Core 64126, a plate & fin evaporator core that absorbs heat from the air moving through the HVAC box as refrigerant flows through it, cooling the air before it reaches the vents. It installs as a direct-fit replacement for the 1995-2006 Chevrolet W3500, W4500 and W5500 Tiltmaster, the 2004-2006 Chevrolet W5500HD Tiltmaster, and the 1995-1996 Chevrolet W6500 and W7500 Tiltmaster, plus the 1995-2006 Isuzu HD NPR and NPR, 1998-2007 Isuzu NPR-HD, 1995-2007 Isuzu NQR and 2005-2007 Isuzu NRR — see the Buyer's Guide tab for engine details and the full application list.
Warm or weak vent air, a persistent refrigerant leak, or a musty odor can be signs the original evaporator core is failing; if the core is the cause, this replaces it. Have the A/C system diagnosed first, since those symptoms can have other causes.
Interchange: TE20908 · 770232 · 921468 · 97205564 · 4712328 · 8972055640 · 289184 · A89184 · EV9409345PF
This part cross-references / interchanges with the following part numbers:
What does this A/C evaporator core do?
Inside the HVAC box, refrigerant flows through the core and absorbs heat from the cabin air passing over its plates and fins, cooling the air before it reaches the vents.
What vehicles does the Four Seasons 64126 fit?
It's a direct-fit replacement for 1995-2006 Chevrolet W3500/W4500/W5500 and 2004-2006 W5500HD Tiltmaster, 1995-1996 W6500/W7500, plus Isuzu HD NPR, NPR, NPR-HD, NQR and NRR. See the Buyer's Guide tab.
Does this evaporator core come with seals?
Yes. It contains the gaskets, o-rings, or seals needed to properly replace the original core during installation.
What are signs the evaporator core may need replacing?
Warm or weak air from the vents, a persistent A/C refrigerant leak, or a musty smell can be signs. Have the system diagnosed, since these symptoms can have other causes.
What is a plate & fin evaporator core?
It's a core built from stacked refrigerant plates and fins with optimized refrigerant flow and an application-specific design, intended to match or exceed OE cooling performance and efficiency.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.