HomeHVAC > Hoses and PipesFour Seasons 66618 A/C Refrigerant Suction Hose
Part #: 66618

Four Seasons 66618 A/C Refrigerant Suction Hose

Hose Assembly
3 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Hose Assembly
Fitment: BMW, X5
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Overview of Four Seasons Hose Assembly 66618

The Four Seasons Hose Assembly 66618 is designed specifically for the BMW X5 HVAC system. This A/C refrigerant suction hose ensures reliable low-pressure refrigerant flow using durable aluminum and rubber materials, making it a precise replacement for your vehicle's air conditioning system.

  • Constructed from aluminum and rubber for durability and flexibility
  • Equipped with P-nut fittings on both ends for secure connections
  • Compatible with R134a refrigerant systems
  • Includes necessary gaskets and fittings for installation
  • Designed as a suction line for low-pressure A/C system operation
  • OE replacement part ensuring proper fit and function
  • Does not include a service port, bracket, muffler, or switch

Four Seasons Hose Assembly Product Line Details

The Four Seasons Hose Assembly product line focuses on delivering reliable hose assemblies for HVAC systems. This line includes components engineered to meet original equipment specifications, providing a direct replacement for factory parts. The 66618 hose assembly is part of this line, offering a balance of material strength and compatibility with R134a refrigerant systems, tailored for vehicles like the BMW X5.

Detailed Product Description

This A/C refrigerant suction hose assembly (part number 66618) is constructed with a combination of aluminum and rubber, providing both rigidity and flexibility where needed. Both ends feature P-nut fittings, ensuring a secure and leak-resistant connection within the low-pressure side of the HVAC system. The hose is designed to handle R134a refrigerant, the standard for many modern vehicles including the BMW X5. Included with the hose are black and green O-rings ([24150] and [24635]) and all necessary fittings, facilitating a straightforward installation without additional parts. This assembly does not include a service port, muffler, bracket, or switch, focusing solely on the suction line function.

Common Applications and Issues Addressed

  • Replacement of worn or damaged A/C refrigerant suction hoses in BMW X5 models
  • Resolving refrigerant leaks caused by cracked or deteriorated hoses
  • Restoring proper low-pressure refrigerant flow for efficient A/C performance
  • Eliminating connection failures due to faulty or missing fittings
  • Addressing system contamination risks from compromised hose integrity

Installation Notes and Tips

  • Ensure the system is fully depressurized before removing the old hose
  • Verify that the included O-rings are properly seated to prevent leaks
  • Use appropriate tools to tighten P-nut fittings without over-torquing
  • Inspect surrounding components for wear or damage during installation
  • Confirm compatibility with BMW X5 HVAC system and R134a refrigerant

Quality Assurance and Warranty

The Four Seasons Hose Assembly 66618 is an OE replacement part manufactured to meet or exceed original equipment standards. It includes all necessary seals and fittings to ensure a proper fit and function. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Always consult product documentation or the manufacturer for exact warranty terms.

BrandFour Seasons
Part Number66618
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/o Muffler
O-Ring A Number/Desc[24150] / Black O-Ring
O-Ring B Number/Desc[24635] / Green Round O-Ring
O.E. Replacement?Yes
Refrigerant TypeR134a
Service Port?w/o Service Port
Suction End TypeP-Nut Fitting
Switch Included?Not Included
System PressureLow Pressure

This part fits 3 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2013BMWX53.0LL6N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2012BMWX53.0LL6N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2011BMWX53.0LL6N/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:

2115296450922272466618785754A83136H8718HA113480C

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