HomeHVAC > Hoses and PipesFour Seasons 66409 A/C Refrigerant Suction Hose
Part #: 66409

Four Seasons 66409 A/C Refrigerant Suction Hose

Hose Assembly
⚙️ 7 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Hose Assembly
🚗Fitment: Nissan, Murano
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Reliable A/C Refrigerant Suction Hose for Nissan Murano

The Four Seasons Hose Assembly 66409 is designed specifically for the Nissan Murano to ensure efficient and reliable air conditioning system performance. This A/C refrigerant suction hose is engineered to meet OEM standards, providing a durable and precise fit for your vehicle's HVAC system.

Key Features of Four Seasons Hose Assembly 66409

  • Constructed from a combination of aluminum and rubber for durability and flexibility
  • Equipped with P-nut fittings on both ends for secure connections
  • Compatible with R134-a refrigerant systems
  • Includes a green O-ring (part number 24684) with two pieces for proper sealing
  • Features a built-in muffler to reduce noise during operation
  • Designed as a low-pressure suction line with a 13 mm service port
  • Includes fittings and gasket/seal for a complete assembly
  • OEM replacement part ensuring proper fit and function

About the Four Seasons Hose Assembly Product Line

The Hose Assembly line from Four Seasons focuses on delivering complete hose solutions for automotive HVAC systems. These assemblies combine high-quality materials and precise engineering to replace critical refrigerant lines, such as suction hoses, with components that meet or exceed original equipment specifications. The 66409 hose assembly is part of this line, offering a reliable replacement for the Nissan Murano's A/C system.

Detailed Product Description

This A/C refrigerant suction hose assembly is designed to handle low-pressure refrigerant flow within the Nissan Murano's air conditioning system. The aluminum and rubber construction provides a balance of strength and flexibility, accommodating engine vibrations and thermal expansion. Both ends feature P-nut fittings, ensuring a secure and leak-free connection. The included green O-rings and gasket help maintain system integrity, while the integrated muffler reduces operational noise. The service port allows for easy maintenance and refrigerant charging without removing the hose.

Common Issues Addressed by This Hose Assembly

  • Leaks in the A/C suction line causing refrigerant loss
  • Reduced cooling efficiency due to damaged or worn hoses
  • Noise from refrigerant flow mitigated by the built-in muffler
  • Difficulty servicing the A/C system without a proper service port
  • Failure of OEM suction hoses leading to system downtime

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66409 on a Nissan Murano, ensure all old refrigerant is properly evacuated from the system before removal. Verify that the green O-rings are correctly seated to prevent leaks. Tighten the P-nut fittings to manufacturer torque specifications to avoid damage. The included service port facilitates refrigerant charging and system diagnostics without hose removal. This hose assembly does not include a bracket or switch, so retain original mounting hardware and components as needed.

Quality Assurance and Warranty

Four Seasons manufactures this hose assembly to meet OEM standards, providing a reliable replacement part for Nissan Murano vehicles. The product includes all necessary seals and fittings to ensure proper installation and function. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty against defects in materials and workmanship.

BrandFour Seasons
Part Number66409
PositionHose Assembly
MaterialAluminum / rubber
End 1 TypeP-nut fitting
End 2 TypeP-nut fitting
Refrigerant TypeR134-a
Component TypeSuction line
System PressureLow pressure
Gasket Or Seal IncludedIncluded
Switch Service PortW/o switch port
Fittings IncludedIncluded
Bracket?W/o bracket
DescriptionHose assemblies
Muffler?W/ muffler
O-Ring A Number/Desc[24684] / green o-ring
O-Ring A Quantity2
O.E. Replacement?Yes
Service Port Qty1
Service Port Size13 mm
Service Port?W/ service port
Suction End TypeP-nut fitting
Sve Port Low SideLow side
Switch Included?Not included

This part fits 7 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2021NissanMuranoN/Aw/ R134a; Hose Assembly
2020NissanMuranoN/ASuction Line; Hose Assembly
2019NissanMuranoN/ASuction Line; Hose Assembly
2018NissanMuranoN/ASuction Line; Hose Assembly
2017NissanMuranoN/ASuction Line; Hose Assembly
2016NissanMurano3.5LV6N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2015NissanMuranoN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; 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:

211320481325066409785823924805AA0AA82922HA112804C

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