HomeHVAC > Hoses and PipesFour Seasons 66408 A/C Refrigerant Suction Hose
Part #: 66408

Four Seasons 66408 A/C Refrigerant Suction Hose

Hose Assembly
⚙️ 5 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, Maxima
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Four Seasons Hose Assembly 66408

The Four Seasons Hose Assembly 66408 is designed specifically for Nissan Maxima models requiring a reliable A/C refrigerant suction hose. Constructed with durable aluminum and rubber materials, this hose assembly ensures efficient refrigerant flow and system performance for vehicles using R134-a refrigerant.

  • Compatible with Nissan Maxima A/C systems
  • Constructed from aluminum and rubber for durability
  • Features P-nut fittings on both ends for secure connections
  • Includes gasket, fittings, and green O-rings for proper sealing
  • Equipped with a muffler and a 13 mm service port on the low-pressure side
  • OE replacement part designed to meet original equipment specifications

Detailed Product Description

This Four Seasons Hose Assembly 66408 belongs to the Hose Assembly product line, which focuses on delivering precise fit and reliable performance for HVAC hoses and pipes. The assembly is engineered as a suction line for low-pressure A/C systems, compatible with R134-a refrigerant. Both ends of the hose feature P-nut fittings, ensuring a secure and leak-free connection. The inclusion of a muffler helps reduce noise and vibration during operation. Additionally, the hose comes with all necessary fittings, gaskets, and two green O-rings (part number 24684) to maintain system integrity. The service port is located on the low-pressure side and measures 13 mm, facilitating easy maintenance and refrigerant charging without the need for additional adapters.

Applications and Common Issues Addressed

  • Replacement of worn or damaged A/C refrigerant suction hoses in Nissan Maxima vehicles
  • Resolving refrigerant leaks caused by cracked or deteriorated hoses
  • Eliminating low-pressure system failures due to faulty suction lines
  • Reducing A/C system noise with the integrated muffler
  • Ensuring proper refrigerant flow and pressure for optimal cooling performance

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66408, ensure the vehicle is compatible with R134-a refrigerant systems. Verify that both P-nut fittings are properly tightened to prevent leaks. The included green O-rings should be lubricated with refrigerant oil before installation to ensure a proper seal. Since the hose assembly includes a service port on the low-pressure side, use it for system diagnostics and refrigerant charging. No bracket is included, so confirm existing mounting points are secure before finalizing installation.

Quality Assurance and Warranty

Four Seasons Hose Assembly 66408 is an OE replacement part, manufactured to meet or exceed original equipment standards for Nissan Maxima vehicles. The product includes all necessary components for a complete installation, ensuring compatibility and reliability. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandFour Seasons
Part Number66408
PositionHose Assembly
Bracket?w/o 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/ Muffler
O-Ring A Number/Desc[24684] / Green O-Ring
O.E. Replacement?Yes
Refrigerant TypeR134-A
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
System PressureLow Pressure

This part fits 5 vehicles. Search below:

YearMakeModelPositionNotes
2020NissanMaximaN/ACompressor End; Hose Assembly
2019NissanMaximaN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2018NissanMaximaN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2017NissanMaximaN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2016NissanMaximaN/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:

21131966408785822924804RA0A924804RA1AA82921HA113621C

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