HomeHVAC > Hoses and PipesFour Seasons 56173 A/C Refrigerant Discharge / Suction Hose Assembly
Part #: 56173

Four Seasons 56173 A/C Refrigerant Discharge / Suction Hose Assembly

Hose Assembly
9 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Hose Assembly
Fitment: Buick, Oldsmobile, and Pontiac, Skylark, Achieva, and Grand Am
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Overview of Four Seasons Hose Assembly 56173

The Four Seasons Hose Assembly 56173 is designed for reliable performance in automotive HVAC systems. Specifically engineered for Buick Achieva, Oldsmobile Cutlass, and Pontiac Grand Am models, this A/C refrigerant discharge and suction hose assembly ensures proper refrigerant flow and system efficiency.

  • Constructed with durable aluminum and rubber materials
  • Compatible with R134a refrigerant type
  • Includes green O-rings [24628] and [24622] for secure sealing
  • Features female o-ring fittings on both discharge and suction ends
  • Equipped with a manifold and R134a quick disconnect service port
  • Does not include fittings, bracket, muffler, or switch

Four Seasons Hose Assembly Product Line Details

The Hose Assembly product line by Four Seasons focuses on delivering precise HVAC hose and pipe replacements that meet original equipment specifications. This line emphasizes quality materials and proper fitment to maintain system integrity and refrigerant containment. The 56173 hose assembly is part of this line, providing a direct OE replacement solution for select GM vehicles.

Product Features and Specifications

This hose assembly is constructed from a combination of aluminum and rubber, offering durability and flexibility required for automotive air conditioning systems. It is designed for use with R134a refrigerant, the standard for many modern vehicles. The assembly includes green O-rings to ensure leak-free connections at both the discharge and suction ends, which feature female o-ring fittings. A built-in manifold and a quick disconnect R134a service port facilitate maintenance and service operations. Note that fittings, brackets, mufflers, and switches are not included with this assembly.

Applications and Common Issues Addressed

  • Replacement of worn or leaking A/C refrigerant discharge and suction hoses
  • Restoring proper refrigerant flow in Buick Achieva, Oldsmobile Cutlass, and Pontiac Grand Am HVAC systems
  • Resolving refrigerant leaks caused by damaged O-rings or hose material degradation
  • Facilitating maintenance with integrated service port for quick refrigerant access
  • Ensuring system pressure integrity by using OE replacement components

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 56173, ensure all old O-rings are removed and replaced with the included green O-rings to prevent leaks. The female o-ring fittings require proper seating and torque to manufacturer specifications. Since fittings, brackets, mufflers, and switches are not included, verify compatibility with existing components before installation. Use the quick disconnect service port for efficient refrigerant evacuation and recharge during servicing.

Quality Assurance and Warranty

Four Seasons provides this hose assembly as an OE replacement part, manufactured to meet or exceed original equipment standards. The inclusion of factory-quality O-rings and materials supports long-term durability. Warranty details should be confirmed with the supplier or manufacturer, as coverage may vary.

BrandFour Seasons
Part Number56173
PositionHose Assembly
Bracket?w/o Bracket
Discharge End StyleFemale O-Ring
Discharge End TypeFemale O-Ring
Fittings IncludedNot Included
Friction Material Attachmentw/ Switch Port
Gasket Or Seal IncludedIncluded
Manifold?Yes
MaterialAluminum / Rubber
Muffler?w/o Muffler
O-Ring A Number/Desc[24628] / Green O-Ring
O-Ring B Number/Desc[24622] / Green O-Ring
O-Rings Included?Included
O.E. Replacement?Yes
Refrigerant TypeR134a
Service Port TypeR134-A Quick Disconnect
Service Port?w/ Service Port
Suction End StyleFemale O-Ring
Suction End TypeFemale O-Ring
Switch Included?Not Included
TypeDischarge & Suction Line

This part fits 9 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1998BuickSkylark2.4LL4N/AHose Assembly
1998OldsmobileAchieva2.4LL4N/AHose Assembly
1998PontiacGrand Am2.4LL4N/AHose Assembly
1997BuickSkylark2.4LL4N/AHose Assembly
1997OldsmobileAchieva2.4LL4N/AHose Assembly
1997PontiacGrand Am2.4LL4N/AHose Assembly
1996BuickSkylark2.4LL4N/AHose Assembly
1996OldsmobileAchieva2.4LL4N/AHose Assembly
1996PontiacGrand Am2.4LL4N/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:

11156173153059815342711918804519305982260417122645979226510902827683463879350973781070481191151799561735730598630570704703781070A72768ACD1530598CWK781070HA1621HA1621CT56173

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