HomeHVAC > Hoses and PipesFour Seasons 55186 A/C Refrigerant Suction Hose
Part #: 55186

Four Seasons 55186 A/C Refrigerant Suction Hose

Hose Assembly
6 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: Toyota, Sienna
Easy Returns — Return within 60 days for a full refund
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Overview of Four Seasons Hose Assembly 55186

The Four Seasons Hose Assembly 55186 is designed specifically for the Toyota Sienna's HVAC system. This A/C refrigerant suction hose ensures reliable low-pressure refrigerant flow, maintaining optimal air conditioning performance in your vehicle.

  • Constructed from durable aluminum and rubber materials
  • Equipped with P-nut fittings on both ends for secure connections
  • Compatible with R134-a refrigerant systems
  • Includes gasket, fittings, and three green O-rings (part number 24682)
  • Features a 13 mm service port on the low-pressure side without a switch port or muffler
  • OE replacement part designed for Toyota Sienna models

Four Seasons Hose Assembly Product Line Details

The Hose Assembly product line by Four Seasons focuses on delivering precise HVAC hose and pipe solutions tailored to specific vehicle applications. The 55186 suction hose assembly is part of this line, engineered to meet original equipment specifications for refrigerant suction lines, ensuring compatibility and durability within the Toyota Sienna's air conditioning system.

Detailed Product Description

This A/C refrigerant suction hose assembly (part number 55186) is constructed from a combination of aluminum and rubber, providing both flexibility and strength to withstand the demands of the HVAC system. Both ends feature P-nut fittings, facilitating a secure and leak-resistant connection to the vehicle's low-pressure refrigerant circuit. The hose is designed for use with R134-a refrigerant and includes all necessary fittings and a gasket to ensure proper sealing. The assembly also comes with three green O-rings (part number 24682) to maintain system integrity. It includes a 13 mm service port on the low-pressure side, allowing for convenient servicing without a switch port or muffler, and does not include a bracket.

Common Applications and Issues Addressed

  • Replacement of worn or damaged A/C refrigerant suction hoses in Toyota Sienna vehicles
  • Resolving refrigerant leaks caused by cracked or deteriorated hoses
  • Restoring proper low-pressure refrigerant flow for efficient air conditioning operation
  • Eliminating issues related to faulty or missing O-rings and seals
  • Ensuring compatibility with R134-a refrigerant systems in Toyota Sienna models

Installation Notes and Tips

  • Verify compatibility with your Toyota Sienna model before installation
  • Ensure all included fittings, gasket, and O-rings are properly seated to prevent leaks
  • Use appropriate tools to tighten P-nut fittings without over-torquing
  • Inspect the surrounding HVAC components for wear or damage during installation
  • Follow manufacturer guidelines for refrigerant handling and system servicing

Quality Assurance and Warranty

The Four Seasons Hose Assembly 55186 is an OE replacement part manufactured to meet or exceed original equipment standards. It undergoes rigorous quality control to ensure durability and reliable performance within the Toyota Sienna HVAC system. Warranty coverage details should be confirmed with the product documentation or supplier.

BrandFour Seasons
Part Number55186
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[24682] / 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 6 vehicles. Search below:

YearMakeModelPositionNotes
2003ToyotaSiennaN/ASuction Line; w/ Trailer Tow Pkg.; w/ Rear AC; Hose Assembly
2002ToyotaSiennaN/ASuction Line; w/ Trailer Tow Pkg.; w/ Rear AC; Hose Assembly
2001ToyotaSiennaN/ASuction Line; w/ Trailer Tow Pkg.; w/ Rear AC; Hose Assembly
2000ToyotaSiennaN/ASuction Line; w/ Trailer Tow Pkg.; w/ Rear AC; Hose Assembly
1999ToyotaSiennaN/ASuction Line; w/ Trailer Tow Pkg.; w/ Rear AC; Hose Assembly
1998ToyotaSiennaN/ASuction Line; w/ Trailer Tow Pkg.; w/ Rear AC; 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:

11155186200223551867852868024228871208060A70214CWK785286HA11265CT55186

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