HomeHVAC > Hoses and PipesFour Seasons 66412 A/C Refrigerant Suction Hose
Part #: 66412

Four Seasons 66412 A/C Refrigerant Suction Hose

Hose Assembly
⚙️ 4 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, Titan XD
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Overview of Four Seasons Hose Assembly 66412

The Four Seasons Hose Assembly 66412 is designed specifically for the Nissan TITAN XD, providing a reliable A/C refrigerant suction hose solution. Engineered with durable aluminum and rubber materials, this hose assembly ensures efficient low-pressure refrigerant flow for R134-a systems.

  • Constructed from aluminum and rubber for durability and flexibility
  • Equipped with P-nut fittings on both ends for secure connections
  • Includes green O-rings (part number 24684) for proper sealing
  • Features a built-in muffler to reduce noise during operation
  • Designed for low-pressure suction line applications with R134-a refrigerant
  • Includes service port with 13 mm size for easy maintenance
  • OE replacement part compatible with Nissan TITAN XD

Detailed Product Description

This Four Seasons Hose Assembly 66412 belongs to the Hose Assembly product line, which focuses on delivering complete hose solutions for automotive HVAC systems. The assembly combines aluminum and rubber materials to balance strength and flexibility, essential for handling refrigerant suction under low pressure. Both ends feature P-nut fittings, ensuring a secure and leak-free connection to the vehicle’s A/C system. The included green O-rings (part number 24684) provide an effective seal, preventing refrigerant loss. Additionally, the hose assembly comes with a muffler to minimize operational noise, enhancing overall system performance.

Compatible Vehicles and Applications

This A/C refrigerant suction hose is compatible with Nissan TITAN XD models requiring R134-a refrigerant systems. It serves as a direct OE replacement, making it suitable for repairs or maintenance of the vehicle’s low-pressure suction line.

  • Replaces worn or damaged suction hoses in Nissan TITAN XD A/C systems
  • Addresses refrigerant leaks caused by cracked or brittle hoses
  • Eliminates noise issues related to faulty mufflers in suction lines
  • Restores proper refrigerant flow and system pressure
  • Facilitates maintenance with included service port and fittings

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66412, ensure the P-nut fittings are tightened to manufacturer specifications to prevent leaks. The included green O-rings should be inspected and replaced if necessary to maintain a proper seal. Since this assembly includes a service port, it allows for easier refrigerant charging and system diagnostics. Note that the hose assembly does not include a bracket or switch, so verify compatibility with your vehicle’s mounting points and electrical components.

Quality Assurance and Warranty

Four Seasons provides this hose assembly as an OE replacement part, meeting or exceeding original equipment standards for fit, form, and function. The product includes all necessary fittings and seals to ensure a reliable installation. 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 Number66412
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 4 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2019NissanTITAN XD5.6LV8N/ASuction Line; To 8/2018; Hose Assembly
2018NissanTITAN XD5.6LV8N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2017NissanTITAN XD5.6LV8N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2016NissanTITAN XD5.6LV8N/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:

2113236641278582692480EZ30A92480EZ30B92480EZ30CA82925

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