HomeHVAC > Hoses and PipesFour Seasons 56656 A/C Refrigerant Suction Hose
Part #: 56656

Four Seasons 56656 A/C Refrigerant Suction Hose

Hose Assembly
⚙️ 2 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Hose Assembly
🚗Fitment: INFINITI and Nissan, QX4 and Pathfinder
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Four Seasons Hose Assembly 56656

The Four Seasons Hose Assembly 56656 is designed specifically for the HVAC system of INFINITI and Nissan vehicles, including the Pathfinder and QX4 models. This A/C refrigerant suction hose ensures reliable low-pressure refrigerant flow with durable aluminum and rubber construction.

  • Material: Aluminum and rubber for durability and flexibility
  • End fittings: P-nut fittings on both ends for secure connections
  • Refrigerant compatibility: Designed for R134-a refrigerant systems
  • Includes gasket, fittings, and bracket for complete installation
  • O-rings included: Black (24150) and green (24684) for proper sealing
  • OEM replacement part ensuring proper fit and function
  • Service port included, switch not included
  • Low-pressure suction line without muffler

Four Seasons Hose Assembly Product Line

The Hose Assembly product line by Four Seasons focuses on providing complete hose solutions for automotive HVAC systems. These assemblies combine high-quality materials and precise fittings to maintain system integrity and refrigerant flow. The 56656 part is part of this line, offering a ready-to-install suction hose assembly that meets OEM specifications for Nissan and INFINITI vehicles.

Detailed Product Description

This A/C refrigerant suction hose assembly is constructed with a combination of aluminum and rubber, providing both strength and flexibility to withstand the demands of the vehicle’s HVAC system. Both ends feature P-nut fittings, ensuring a secure and leak-free connection to the compressor and evaporator. The hose is designed for use with R134-a refrigerant and operates under low system pressure. Included with the hose are essential components such as gaskets, fittings, and a mounting bracket, facilitating a straightforward installation process. The assembly also comes with two O-rings (black and green) to ensure proper sealing and prevent refrigerant leaks. This part is an OEM replacement, guaranteeing compatibility with the specified INFINITI Pathfinder and Nissan QX4 models.

Common Applications and Issues Addressed

  • Replacement of worn or damaged A/C refrigerant suction hoses
  • Resolving refrigerant leaks caused by cracked or deteriorated hoses
  • Restoring proper refrigerant flow in low-pressure A/C lines
  • Eliminating poor A/C performance due to faulty suction line components
  • Upgrading to OEM-quality parts for reliable HVAC system operation

Installation Notes and Tips

  • Ensure the vehicle is compatible: INFINITI Pathfinder and Nissan QX4 models
  • Verify that the refrigerant type is R134-a before installation
  • Use the included gaskets and O-rings to prevent leaks
  • Secure the hose assembly using the provided bracket for proper fitment
  • Check all connections for tightness and absence of leaks after installation

Quality Assurance and Warranty

The Four Seasons Hose Assembly 56656 is manufactured to meet OEM standards, ensuring reliable performance and fitment. This part includes all necessary seals and fittings to maintain system integrity. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.

BrandFour Seasons
Part Number56656
PositionHose Assembly
Bracket?w/ Bracket
Component TypeSuction Line
DescriptionHose Assemblies
End 1 TypeP-Nut Fitting
End 2 TypeP-Nut Fitting
Fittings IncludedIncluded
Friction Material Attachmentw/o Switch Port
Gasket Or Seal IncludedIncluded
MaterialAluminum / Rubber
Muffler?w/o Muffler
O-Ring A Number/Desc[24150] / Black O-Ring
O-Ring B Number/Desc[24684] / Green O-Ring
O.E. Replacement?Yes
Refrigerant TypeR134-A
Service Port?w/ Service Port
Suction End TypeP-Nut Fitting
Switch Included?Not Included
System PressureLow Pressure

This part fits 2 vehicles. Search below:

YearMakeModelPositionNotes
2001INFINITIQX4N/ASuction Line; From 8/00; Hose Assembly
2001NissanPathfinderN/ASuction Line; From 8/00; Hose 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:

28210356656785521800831924804W010A82142T56656

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