Four Seasons A/C Suction and Liquid Line Hose Assembly 66978
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Four Seasons A/C Suction and Liquid Line Hose Assembly 66978
Four Seasons A/C Suction and Liquid Line Hose Assembly 66978 - view 2
Four Seasons A/C Suction and Liquid Line Hose Assembly 66978 - view 3
Four Seasons A/C Suction and Liquid Line Hose Assembly 66978 - view 4
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Four Seasons A/C Suction and Liquid Line Hose Assembly P/N:66978

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$127.99
WARNING:California Proposition 65▾
MPN: 66978
Item Package Quantity: 1
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Four Seasons A/C Suction and Liquid Line Hose Assembly P/N:66978
Four Seasons A/C Suction and Liquid Line Hose Assembly P/N:66978
$127.99

Restore proper refrigerant flow through your air-conditioning system with the Four Seasons A/C Suction and Liquid Line Hose Assembly 66978, an application-specific replacement that drops in on the 2019-2023 Jeep Cherokee (L4-2.4L). This single unit routes both the low-pressure suction side and the high-pressure liquid side, integrating an internal heat exchanger (IHX) so refrigerant can transfer heat between the two lines. If cracked, corroded, or leaking lines are venting refrigerant, this replaces them.

  • Internal heat exchange design: a combined suction & liquid line hose assembly built with an IHX, engineered specifically for the listed application.
  • Construction: aluminum and rubber double-wall barrier hose, compatible with R-1234yf, R-134a, or R-12.
  • Fittings: a P-Nut fitting on one end and a flange on the other, joined by crimp fitting connections; includes a switch service port.
  • Included hardware: ships with the gaskets, o-rings, or seals and fittings needed to complete the job. Supplied without a bracket.

Often searched as an A/C suction line, this assembly delivers a clean, sealed connection for your Cherokee's refrigerant circuit.

Interchange: 68288353AA · 68288353AB · 211889 · A83658 · HA114152C

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

68288353AA, 68288353AB, 66978, 211889, A83658, HA114152C

Frequently Asked Questions

Which vehicle does the Four Seasons 66978 fit?

It is an application-specific replacement for the 2019-2023 Jeep Cherokee with the L4-2.4L engine. Always confirm fitment for your specific vehicle before ordering.

What refrigerants is this hose assembly compatible with?

Its double-wall barrier hose is compatible with R-1234yf, R-134a, or R-12, per the manufacturer. Match it to the refrigerant specified for your system.

What is the internal heat exchanger (IHX) for?

This is a combined suction and liquid line assembly with an IHX, which lets refrigerant transfer heat between the low-pressure and high-pressure lines as it flows through the system.

Are seals and fittings included?

Yes. It ships with the gaskets, o-rings, or seals and the fittings needed to install it, and it includes a switch service port. It is supplied without a bracket.

What are the end connections on this line?

One end uses a P-Nut fitting and the other uses a flange, joined by crimp fitting connections. It is constructed from aluminum and rubber.

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