HomeHVAC > Hoses and PipesFour Seasons 66823 A/C Refrigerant Suction Hose
Part #: 66823

Four Seasons 66823 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, Highlander
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Overview of Four Seasons Hose Assembly 66823

The Four Seasons Hose Assembly 66823 is designed specifically for Toyota Highlander models requiring a reliable A/C refrigerant suction hose. Constructed from durable steel and rubber materials, this hose assembly ensures proper refrigerant flow and system integrity for vehicles using R134-a refrigerant.

  • Compatible with Toyota Highlander A/C systems
  • Constructed from steel and rubber for durability
  • Includes P-nut fittings on both ends for secure connections
  • Equipped with a low side service port with cap (OEM replacement #69500)
  • Comes with green O-rings ([24682] and [24681]) for proper sealing
  • Includes necessary fittings and gasket/seal
  • OEM replacement part ensuring proper fit and function

Detailed Product Description

This Four Seasons Hose Assembly 66823 belongs to the Hose Assembly product line, which focuses on delivering precise replacement hoses and pipes for automotive HVAC systems. This particular suction line is engineered to meet OEM specifications for the Toyota Highlander, providing a direct replacement for the original A/C refrigerant suction hose. The combination of steel and rubber materials offers resistance to wear and refrigerant leaks, while the included fittings and seals simplify installation and ensure a tight, leak-free connection.

Applications and Common Issues Addressed

  • Replacement of worn or damaged A/C refrigerant suction hoses on Toyota Highlander models
  • Fixing refrigerant leaks caused by cracked or deteriorated hoses
  • Restoring proper refrigerant flow in the low side of the A/C system
  • Resolving issues related to faulty or missing service ports
  • Ensuring system integrity after component failure or maintenance

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66823, ensure the vehicle is compatible with R134-a refrigerant systems. The hose features P-nut fittings on both ends, which require proper torque to avoid leaks. The included green O-rings should be replaced during installation to maintain a secure seal. Note that this assembly does not include a bracket or muffler, so verify existing mounting points and supports on the Toyota Highlander. The low side service port with cap (OEM #69500) is included for convenient servicing.

Quality Assurance and Warranty

Four Seasons provides this Hose Assembly 66823 as an OEM replacement part, ensuring it meets or exceeds original equipment standards for fit, form, and function. The inclusion of all necessary fittings, seals, and service port components supports reliable performance. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty against defects in materials and workmanship.

BrandFour Seasons
Part Number66823
PositionHose Assembly
Bracket?w/o Bracket
Component TypeSuction Line
DescriptionHose Assemblies
End 1 TypeP-Nut Fitting
Fittings IncludedIncluded
Friction Material Attachmentw/o Switch Port
Gasket Or Seal IncludedIncluded
Low Side Service Port w/ Cap # (OEM Replacement)69500
MaterialSteel / Rubber
Muffler?w/o Muffler
O-Ring A Number/Desc[24682] / Green O-Ring
O-Ring B Number/Desc[24681] / Green O-Ring
O.E. Replacement?Yes
Refrigerant TypeR134-A
Service Port Cap Low Side69500
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

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2016ToyotaHighlander3.5LV6N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2016ToyotaHighlander3.5LV6GASN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2015ToyotaHighlander3.5LV6N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2015ToyotaHighlander3.5LV6GASN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2014ToyotaHighlander3.5LV6N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2014ToyotaHighlander3.5LV6GASN/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:

3464595481280366823785915887040E200A83503HA11599C

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