Four Seasons A/C Evaporator Core P/N:64112
Four Seasons 54587 A/C evaporator core for the 1990 Buick Reatta and other vehicles cools cabin air using a plate and fin core. The core design meets or exceeds OE performance and efficiency.
Weak cooling, a musty smell from the vents or oily residue near the A/C lines can come from the evaporator core, though other A/C faults cause the same signs. With the engine off, look over the visible A/C lines and fittings for oily residue, and leave pressure or leak testing to a shop before you replace the core.
The vehicles it fits include the 1990 Buick Reatta, the 1990 Buick Riviera and the 1990 Cadillac Eldorado. The 1990 Buick Reatta takes one.
Fit and size
Build and materials
One evaporator core and four O-rings: two numbered 24608 and two numbered 24612.
Product information is for general reference and may contain errors. See our Disclaimer.
Is the Four Seasons 54587 evaporator core right for a 1990 Buick Riviera?
Yes, Four Seasons 54587 fits the 1990 Buick Riviera. If your car is another model, look it up in the "Vehicles it fits" section on this page.
Does the Four Seasons 54587 evaporator core come with O-rings?
Yes. Four Seasons 54587 comes with four O-rings: two numbered 24608 and two numbered 24612.
Is this A/C evaporator core made of aluminum?
Yes. This evaporator core has an aluminum plate and fin construction.
What size are the inlet and outlet fittings on this evaporator core?
Both are male insert O-ring fittings. The core measures 13.5 in wide, 8 in high and 2.875 in deep.
Could a musty smell from the vents mean the evaporator core is bad?
It can be a sign, but other A/C faults produce the same smell. A shop can leak-test the system to find the cause.
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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.