HomeHVAC > Hoses and PipesFour Seasons 66608 A/C Refrigerant Suction Hose
Part #: 66608

Four Seasons 66608 A/C Refrigerant Suction Hose

Hose Assembly
⚙️ 12 vehicles fit this part
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Select your vehicle to confirm fitment
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Hose Assembly
🚗Fitment: Toyota, Sequoia
🔄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 66608

The Four Seasons Hose Assembly 66608 is designed specifically for the Toyota Sequoia'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 suction ends for secure connections
  • Compatible with R134a refrigerant systems
  • Includes gasket, fittings, and green O-rings for proper sealing
  • Features a built-in muffler to reduce noise
  • Includes one 13 mm service port without a switch port
  • OE replacement part designed for Toyota Sequoia models

Four Seasons Hose Assembly Product Line Details

The Four Seasons Hose Assembly product line focuses on delivering reliable hose assemblies tailored for HVAC systems. This line emphasizes quality materials and precise fitment, ensuring components like the 66608 suction hose meet OEM specifications for efficient refrigerant flow and system integrity.

Detailed Product Description

The Four Seasons 66608 A/C refrigerant suction hose is engineered for the low-pressure side of the Toyota Sequoia's air conditioning system. Made from a combination of aluminum and rubber, it balances flexibility with durability to withstand system pressures and temperature variations. The hose features P-nut fittings on both ends, providing a secure and leak-resistant connection. Included with the hose are two green O-rings (part number 24681), a gasket, and necessary fittings to ensure a proper seal and easy installation. The integrated muffler helps minimize operational noise, contributing to a quieter cabin environment. This hose assembly is designed without a bracket and does not include a switch, but it does have a single 13 mm service port for maintenance access.

Common Applications and Issues Addressed

  • Replacement of worn or leaking A/C refrigerant suction hoses in Toyota Sequoia vehicles
  • Resolving low refrigerant pressure issues caused by hose damage or leaks
  • Eliminating noise from the suction line with the built-in muffler
  • Ensuring proper refrigerant flow and system efficiency with OEM-quality components
  • Facilitating maintenance through the included service port

Installation Notes and Tips

  • Verify compatibility with Toyota Sequoia models before installation
  • Use the included green O-rings and gasket to ensure leak-free connections
  • Inspect fittings and service port for proper alignment during installation
  • Do not reuse old seals or fittings to prevent refrigerant leaks
  • Handle the aluminum and rubber hose carefully to avoid kinks or damage

Quality Assurance and Warranty

The Four Seasons Hose Assembly 66608 is an OE replacement part manufactured to meet or exceed original equipment standards. It undergoes rigorous quality control to ensure durability and performance in Toyota Sequoia HVAC systems. Warranty coverage details should be confirmed with the product documentation or supplier.

BrandFour Seasons
Part Number66608
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
MaterialAluminum / Rubber
Muffler?w/ Muffler
O-Ring A Number/Desc[24681] / Green O-Ring
O.E. Replacement?Yes
Refrigerant TypeR134a
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 12 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2019ToyotaSequoiaN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2018ToyotaSequoiaN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2017ToyotaSequoiaN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2016ToyotaSequoiaN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2015ToyotaSequoiaN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2014ToyotaSequoiaN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2013ToyotaSequoiaN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2012ToyotaSequoiaN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2011ToyotaSequoiaN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2010ToyotaSequoiaN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2009ToyotaSequoia5.7LV8N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2008ToyotaSequoia5.7LV8N/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:

211519481316366608785713887120C140A83126HA113491C

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