HomeHVAC > Hoses and PipesFour Seasons 66595 A/C Refrigerant Suction Hose
Part #: 66595

Four Seasons 66595 A/C Refrigerant Suction Hose

Hose Assembly
6 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Hose Assembly
Fitment: Toyota, Tacoma
Easy Returns — Return within 60 days for a full refund
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Overview of Four Seasons Hose Assembly 66595

The Four Seasons Hose Assembly 66595 is designed specifically for Toyota Tacoma models, providing a reliable A/C refrigerant suction hose solution. Engineered with durable aluminum and rubber materials, this hose assembly ensures efficient refrigerant flow and system performance.

  • Constructed from aluminum and rubber for durability and flexibility
  • Features a P-nut fitting on one end and a male o-ring on the other
  • Compatible with R1234yf refrigerant systems
  • Includes necessary gaskets, seals, and fittings for installation
  • Designed as a low-pressure suction line without a switch or muffler
  • Equipped with a 14 mm R1234yf quick disconnect service port
  • OE replacement part ensuring proper fit and function

Detailed Product Description

This Four Seasons Hose Assembly 66595 belongs to the Hose Assembly product line, which focuses on delivering precise and durable hose and pipe components for automotive HVAC systems. This particular suction hose is crafted from a combination of aluminum and rubber, providing the necessary strength and flexibility to handle low-pressure refrigerant flow in Toyota Tacoma A/C systems using R1234yf refrigerant.

The hose assembly includes a P-nut fitting on one end and a male o-ring fitting on the other, ensuring secure connections within the HVAC system. It comes with two green round o-rings (part number 24652) and one slimline washer (part number 24403) to maintain a tight seal and prevent leaks. Additionally, the assembly features a 14 mm quick disconnect service port with valve core (part number 59347) and cap (part number 59901) on the low-pressure side, facilitating easy servicing without the need for additional components.

Applications and Common Issues Addressed

  • Replacement of worn or damaged A/C refrigerant suction hoses in Toyota Tacoma vehicles
  • Resolving refrigerant leaks caused by degraded seals or fittings
  • Restoring proper refrigerant flow and pressure in low-pressure A/C lines
  • Addressing issues related to incompatible or faulty service ports
  • Ensuring system integrity after component failure or maintenance

Installation Notes and Tips

  • Verify compatibility with Toyota Tacoma models before installation
  • Ensure all included gaskets and o-rings are properly seated to prevent leaks
  • Use appropriate tools to tighten P-nut and male o-ring fittings without over-torquing
  • Check the service port for proper valve core installation and cap placement
  • Inspect the hose assembly for any damage before installation

Quality Assurance and Warranty

The Four Seasons Hose Assembly 66595 is an OE replacement part, designed to meet or exceed original equipment specifications for Toyota Tacoma HVAC systems. It includes all necessary seals and fittings to ensure a secure and leak-free installation. While specific warranty details are not provided, Four Seasons products typically adhere to industry standards for quality and reliability.

BrandFour Seasons
Part Number66595
PositionHose Assembly
Bracket?w/o Bracket
Component TypeSuction Line
DescriptionHose Assemblies
End 1 TypeP-Nut Fitting
End 2 TypeMale O-ring
Fittings IncludedIncluded
Friction Material Attachmentw/o Switch Port
Gasket Or Seal IncludedIncluded
MaterialAluminum / Rubber
Muffler?w/o Muffler
O-Ring A Number/Desc[24652] / Green Round O-Ring
O-Ring B Number/Desc[24403] / Slimline Washer
O.E. Replacement?Yes
Refrigerant TypeR1234yf
Service Port Cap Low Side59901
Service Port Qty1
Service Port Size14 MM
Service Port TypeR1234yf Quick Disconnect
Service Port Valve Core Low Side59347
Service Port?w/ Service Port
Suction End TypeFlange
Sve Port Low SideLow Side
Switch Included?Not Included
System PressureLow Pressure

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2021ToyotaTacoma3.5LV6N/ASuction Line; w/ R1234yf; Hose Assembly
2020ToyotaTacoma3.5LV6N/ASuction Line; w/ R1234yf; Hose Assembly
2019ToyotaTacoma3.5LV6N/ASuction Line; w/ R1234yf; Hose Assembly
2018ToyotaTacoma3.5LV6N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2017ToyotaTacoma3.5LV6N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2016ToyotaTacoma3.5LV6N/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:

211506665957857038870404040A83113HA11538C

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