HomeHVAC > Hoses and PipesFour Seasons 66737 A/C Refrigerant Discharge / Suction Hose Assembly
Part #: 66737

Four Seasons 66737 A/C Refrigerant Discharge / Suction Hose Assembly

Hose Assembly
4 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Hose Assembly
Fitment: Chevrolet and Pontiac, Equinox and Torrent
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OE A/C Hose Assembly for Equinox and Torrent

Four Seasons 66737 is an OE replacement A/C refrigerant discharge and suction hose assembly built for 2008-2009 Chevrolet Equinox and 2008-2009 Pontiac Torrent applications. It combines aluminum and rubber construction with the correct manifold, fittings, and seal components for service on R134-A systems.

This Four Seasons Hose Assembly line focuses on direct-fit HVAC hose and pipe replacements for vehicles that need accurate routing, proper sealing, and OE-style connection points. Part number 66737 follows that approach for the Chevrolet Equinox and Pontiac Torrent platform.

Key Features

  • Part number 66737 A/C refrigerant discharge / suction hose assembly
  • OE replacement design for R134-A air conditioning systems
  • Aluminum / rubber construction for HVAC routing and flexibility
  • High-pressure and low-pressure system use
  • Manifold style suction connection with muffler
  • Includes gasket or seal and fittings
  • Switch port provision included; switch not included
  • Discharge end uses a P-nut fitting; suction end uses a P-nut fitting
  • Compatible with 2008-2009 Chevrolet Equinox and 2008-2009 Pontiac Torrent

Detailed Description

Four Seasons 66737 is built as a direct OE-style replacement for the A/C refrigerant line assembly used on 2008-2009 Chevrolet Equinox and 2008-2009 Pontiac Torrent models. It is configured as a discharge and suction line with a block manifold suction style, muffler, and the specified P-nut fitting ends for proper connection to the vehicle HVAC system. The assembly is intended for R134-A refrigerant systems and is specified for both high-pressure and low-pressure service points within the air conditioning circuit.

For buyers searching for a 2008 Chevrolet Equinox A/C hose assembly, a 2009 Pontiac Torrent refrigerant discharge hose, or Four Seasons 66737 HVAC hose replacement, this part provides the correct OE replacement format with the listed seals, O-rings, and fittings. This part cross-references UAC HA111623C for the same application.

Common Problems This Part Addresses

  • Refrigerant loss from cracked or leaking hose sections
  • Damaged or worn sealing surfaces at the hose connections
  • Improper A/C line fitment after prior repair or replacement
  • Noise or restriction related to a failing hose assembly or muffler section
  • Service issues on R134-A systems requiring the correct discharge and suction line layout

Installation Notes and Tips

Verify the vehicle’s A/C line routing, manifold connection style, and port configuration before installation. Replace the existing hose assembly only after recovering refrigerant and inspecting mating surfaces for damage, corrosion, or contamination. Use the correct seals and O-rings specified for the connection points, and confirm that the switch port valve core matches the vehicle’s service requirements.

Fits 2008-2009 Chevrolet Equinox, N/A. Fits 2008-2009 Pontiac Torrent, N/A.

Quality Assurance

Four Seasons supplies OE replacement HVAC components engineered to match the listed application details, including material type, refrigerant specification, and connection style. Part number 66737 is built to the stated fitment and configuration for direct replacement use on the covered vehicles.

BrandFour Seasons
Part Number66737
PositionHose Assembly
Bracket?w/o Bracket
Discharge End MM11.700
Discharge End StyleP-Nut Fitting
Discharge End TypeP-Nut Fitting
Fittings IncludedIncluded
Friction Material Attachmentw/ Switch Port
Gasket Or Seal IncludedIncluded
Manifold Suc StyleBlock
Manifold?Yes
MaterialAluminum / Rubber
Muffler?w/ Muffler
O-Ring A Number/Desc[24402] / Slimline Washer
O-Ring B Number/Desc[24354] / Sealing Washer
O-Ring C Number/Desc[24606] / Green O-Ring
O-Rings Included?Included
O.E. Replacement?Yes
Orifice Tube?Not Included
Refrigerant TypeR134-A
Service Port?w/o Service Port
Suction End IN0.63
Suction End MM15.95
Suction End StyleP-Nut Fitting
Suction End TypeP-Nut Fitting
Switch Included?Not Included
Switch Port Valve Core56346
System PressureHigh Pressure / Low Pressure
TypeDischarge & Suction Line

This part fits 4 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2009ChevroletEquinox3.6LV6N/AHose Assembly
2009PontiacTorrent3.6LV6N/AHose Assembly
2008ChevroletEquinox3.6LV6N/AHose Assembly
2008PontiacTorrent3.6LV6N/AHose Assembly

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

153378615927302481315266737700131781572A83311HA111623C

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.