HomeHVAC > Hoses and PipesFour Seasons 66673 A/C Refrigerant Suction Hose
Part #: 66673

Four Seasons 66673 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: Lexus, ES350
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Four Seasons Hose Assembly 66673

The Four Seasons Hose Assembly 66673 is designed specifically for the Lexus ES350 HVAC system. This A/C refrigerant suction hose ensures reliable performance by using durable aluminum and rubber materials, providing a secure connection for your vehicle's air conditioning system.

  • Constructed from aluminum and rubber for durability and flexibility
  • Features a flange end and a P-nut fitting for secure connections
  • Compatible with R134-a refrigerant type
  • Includes gasket, fittings, and three black O-rings for proper sealing
  • OE replacement part designed for Lexus ES350 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. This line includes components engineered to meet original equipment specifications, ensuring proper fit and function. The 66673 suction hose assembly is part of this line, providing a direct replacement for the Lexus ES350's A/C refrigerant suction line without the need for additional modifications.

Product Description and Features

This A/C refrigerant suction hose assembly is constructed with a combination of aluminum and rubber, balancing strength and flexibility to withstand the demands of the HVAC system. The hose features a flange on one end and a P-nut fitting on the other, facilitating a secure and leak-free connection. It is designed for use with R134-a refrigerant, the standard for many modern vehicles including the Lexus ES350. The assembly includes necessary fittings, a gasket, and three black O-rings (part number 24150) to ensure a tight seal and prevent refrigerant leaks. This part does not include a service port, switch, bracket, or muffler, aligning with the original equipment design.

Common Applications and Issues Addressed

  • Replacement of worn or damaged A/C refrigerant suction hoses in Lexus ES350
  • Eliminates refrigerant leaks caused by cracked or deteriorated hoses
  • Restores proper refrigerant flow for efficient air conditioning performance
  • Prevents contamination and moisture ingress in the HVAC system
  • Addresses issues related to poor sealing or fitting failures in the suction line

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66673, ensure all old seals and fittings are removed and the connection points are clean. Use the included gasket and O-rings to maintain a proper seal. Tighten the flange and P-nut fittings to manufacturer torque specifications to avoid leaks. Since this assembly does not include a service port or bracket, verify compatibility with your vehicle’s existing mounting points and service procedures. Professional installation is recommended to ensure system integrity and performance.

Quality Assurance and Warranty

Four Seasons provides this hose assembly as an OE replacement part, meeting original equipment standards for fit and function. The inclusion of all necessary fittings and seals supports reliable operation. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandFour Seasons
Part Number66673
PositionHose Assembly
Bracket?w/o Bracket
Component TypeSuction Line
DescriptionHose Assemblies
End 1 TypeFlange
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.E. Replacement?Yes
Refrigerant TypeR134-A
Service Port?w/o Service Port
Suction End TypeP-Nut Fitting
Switch Included?Not Included

This part fits 6 vehicles. Search below:

YearMakeModelPositionNotes
2018LexusES350N/ASuction Line; Compressor End; Japan Built; Hose Assembly
2017LexusES350N/ASuction Line; Compressor End; Japan Built; Hose Assembly
2016LexusES350N/ASuction Line; Compressor End; Japan Built; Hose Assembly
2015LexusES350N/ASuction Line; Compressor End; Japan Built; Hose Assembly
2014LexusES350N/ASuction Line; Compressor End; Japan Built; Hose Assembly
2013LexusES350N/ASuction Line; Compressor End; Japan Built; 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:

211584666737555200057859048871233290A83191HA113529C

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