HomeHVAC > Hoses and PipesFour Seasons 66450 A/C Refrigerant Discharge Hose
Part #: 66450

Four Seasons 66450 A/C Refrigerant Discharge Hose

Hose Assembly
⚙️ 6 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: Nissan, Sentra
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Overview of Four Seasons Hose Assembly 66450

The Four Seasons Hose Assembly 66450 is designed specifically for Nissan Sentra models requiring a reliable A/C refrigerant discharge hose. Constructed with durable aluminum and rubber materials, this hose assembly ensures efficient high-pressure refrigerant flow for R134a systems.

  • Compatible with Nissan Sentra A/C systems using R134a refrigerant
  • High-pressure discharge line with included fittings and bracket
  • Includes green O-rings (part number 24661) for secure sealing
  • OE replacement part ensuring proper fit and function
  • Does not include a service or switch port, designed without muffler

Four Seasons Hose Assembly Product Line Details

The Hose Assembly product line by Four Seasons focuses on delivering complete hose solutions for automotive HVAC systems. This line includes assemblies that combine aluminum and rubber components to handle high system pressures while maintaining durability and leak resistance. The 66450 part is a direct OE replacement designed to meet Nissan Sentra’s specific A/C refrigerant discharge requirements.

Product Features and Specifications

This A/C refrigerant discharge hose is engineered for high-pressure operation within the Nissan Sentra’s HVAC system. It features a P-nut fitting on the suction end and comes with all necessary fittings and a mounting bracket for secure installation. The included green O-rings (two in quantity) provide a tight seal to prevent refrigerant leaks. The hose assembly is designed without a muffler or service port, focusing on essential discharge line functionality.

Common Applications and Problem Resolution

  • Replacement of worn or leaking A/C refrigerant discharge hoses in Nissan Sentra vehicles
  • Restoring proper refrigerant flow and pressure in R134a A/C systems
  • Eliminating refrigerant leaks caused by damaged or degraded hoses
  • Addressing issues related to improper hose fittings or missing brackets
  • Ensuring system integrity after component failure or during HVAC system repairs

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66450, ensure the vehicle is compatible with R134a refrigerant systems. Use the included fittings and bracket to secure the hose assembly properly. Replace the green O-rings to maintain a leak-free connection. Since this part does not include a service or switch port, verify that your system does not require these features before installation.

Quality Assurance and Warranty

Four Seasons provides this hose assembly as an OE replacement part, meeting original equipment specifications for fit and function. The materials and construction are designed to withstand high system pressures typical of Nissan Sentra A/C systems. Warranty details should be confirmed with the product documentation or supplier, ensuring coverage for manufacturing defects and performance reliability.

BrandFour Seasons
Part Number66450
PositionHose Assembly
Bracket?w/ Bracket
Component TypeDischarge Line
DescriptionHose Assemblies
Fittings IncludedIncluded
Friction Material Attachmentw/o Switch Port
Gasket Or Seal IncludedIncluded
MaterialAluminum / Rubber
Muffler?w/o Muffler
O-Ring A Number/Desc[24661] / Green O-Ring
O.E. Replacement?Yes
Refrigerant TypeR134a
Service Port?w/o Service Port
Suction End TypeP-Nut Fitting
Switch Included?Not Included
System PressureHigh Pressure

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2012NissanSentra2.0LL4N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2011NissanSentra2.0LL4N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2010NissanSentra2.0LL4N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2009NissanSentra2.0LL4N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2008NissanSentra2.0LL4N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2007NissanSentra2.0LL4N/ACompatible with various vehicles A/C refrigerant discharge hose; 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:

21136148116706645078787480110692490ET00092490ZT50AA82963HA11204C

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