Four Seasons A/C Refrigerant Suction Hose 66789
Four Seasons A/C Refrigerant Suction Hose 66789

Four Seasons A/C Refrigerant Suction Hose P/N:66789

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$33.99
MPN: 66789
Item Package Quantity: 1
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Four Seasons A/C Refrigerant Suction Hose P/N:66789
Four Seasons A/C Refrigerant Suction Hose P/N:66789
$33.99

Keep cold air flowing and your A/C system properly charged with the Four Seasons A/C Refrigerant Suction Hose (MPN 66789). It drops in as a direct-fit replacement for the 2010-2012 Ford Flex, 2010-2012 Ford Taurus, 2010-2012 Lincoln MKS, and 2010-2012 Lincoln MKT, renewing the low-pressure side of the air conditioning circuit.

An A/C suction hose carries low-pressure refrigerant vapor from the evaporator back to the compressor. Over time the rubber can crack, chafe, or leak at its fittings, letting refrigerant escape and leaving the system unable to cool. This hose replaces that worn line so the loop can hold its charge.

  • Low-pressure suction line: routes refrigerant vapor from the evaporator back to the compressor inlet.
  • Direct-fit replacement: a direct-fit replacement for the listed applications.
  • Leak-path renewal: if a cracked or leaking suction hose is the cause of poor A/C performance, this replaces it.

Interchange: 785914 · AA5Z19867A · 607527 · 4813338 · YF3536 · 211700 · A83467

This part cross-references / interchanges with the following part numbers:

785914, 66789, AA5Z19867A, 607527, 4813338, YF3536, 211700, A83467, HA11479C

Frequently Asked Questions

What does this A/C suction hose do?

It carries low-pressure refrigerant vapor from the evaporator back to the compressor inlet on the suction side of the air conditioning system.

Which vehicles does MPN 66789 fit?

It's a direct-fit replacement for the 2010-2012 Ford Flex, 2010-2012 Ford Taurus, 2010-2012 Lincoln MKS, and 2010-2012 Lincoln MKT. Confirm fitment for your vehicle.

Why would I need to replace this hose?

Signs it may need replacing include refrigerant leaks, cracked or chafed rubber, and weak A/C cooling. Diagnose the cause first, since other components can also leak.

What numbers does this hose interchange with?

It interchanges with 785914, AA5Z19867A, 607527, 4813338, YF3536, 211700, A83467, and HA11479C.

Will this restore my A/C cooling?

If a cracked or leaking suction hose is the cause of poor cooling, replacing it addresses that leak. The system will still need to be evacuated and recharged after service.

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