HomeHVAC > Hoses and PipesFour Seasons 66630 A/C Refrigerant Discharge / Suction Hose Assembly
Part #: 66630

Four Seasons 66630 A/C Refrigerant Discharge / Suction Hose Assembly

Hose Assembly
⚙️ 2 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Hose Assembly
🚗Fitment: Buick, Regal and LaCrosse
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Overview of Four Seasons Hose Assembly 66630

The Four Seasons Hose Assembly 66630 is designed specifically for Buick LaCrosse and Regal models, providing reliable A/C refrigerant discharge and suction line functionality. Constructed with durable aluminum and rubber materials, this hose assembly ensures efficient refrigerant flow and system integrity.

  • Compatible with Buick LaCrosse and Regal models
  • Constructed from aluminum and rubber for durability
  • Designed for R134a refrigerant systems
  • Includes slimline washer O-rings for secure sealing
  • Features P-nut fittings on both discharge and suction ends
  • Equipped with a muffler and manifold block for noise reduction and system stability
  • OE replacement part ensuring proper fit and function
  • Includes necessary gaskets and seals

Four Seasons Hose Assembly Product Line Details

The Hose Assembly product line from Four Seasons focuses on delivering precise HVAC hose and pipe solutions tailored to specific vehicle applications. This line emphasizes quality materials and exact fitment, such as the 66630 hose assembly, which integrates essential components like O-rings, mufflers, and manifold blocks to maintain system performance and reduce noise in Buick LaCrosse and Regal air conditioning systems.

Detailed Product Description

The Four Seasons 66630 hose assembly serves as both the discharge and suction line in the vehicle's A/C system. It is engineered with aluminum and rubber components to withstand pressure and temperature variations typical in automotive HVAC systems. The assembly is designed for R134a refrigerant, the standard for many modern vehicles. It includes two sets of slimline washer O-rings (part numbers 24404 and 24402) to ensure leak-free connections. The discharge and suction ends both utilize P-nut fittings for secure attachment, while the integrated muffler helps minimize operational noise. This assembly does not include a service port or bracket, aligning with original equipment specifications for Buick LaCrosse and Regal models.

Common Issues Addressed by This Hose Assembly

  • Leaking refrigerant due to worn or damaged hoses
  • Reduced A/C performance from clogged or deteriorated lines
  • Excessive noise caused by missing or faulty mufflers
  • Improper fitment leading to system inefficiency
  • Failure of original hoses due to age or environmental exposure

Installation Notes and Tips

  • Ensure compatibility with Buick LaCrosse and Regal models before installation
  • Replace all included O-rings and gaskets to prevent leaks
  • Use proper torque specifications for P-nut fittings to avoid damage
  • Inspect the A/C system for contamination before installing the new hose assembly
  • Verify that the system is evacuated and recharged with R134a refrigerant after installation

Quality Assurance and Warranty

Four Seasons Hose Assembly 66630 is an OE replacement part manufactured to meet or exceed original equipment standards. It includes all necessary seals and components to ensure a proper fit and reliable operation. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.

BrandFour Seasons
Part Number66630
PositionHose Assembly
Bracket?w/o Bracket
Discharge End StyleP-Nut Fitting
Discharge End TypeP-Nut Fitting
Friction Material Attachmentw/o Switch Port
Gasket Or Seal IncludedIncluded
Manifold Suc StyleBlock
Manifold?Yes
MaterialAluminum / Rubber
Muffler?w/ Muffler
O-Ring A Number/Desc[24404] / Slimline Washer
O-Ring B Number/Desc[24402] / Slimline Washer
O-Rings Included?Included
O.E. Replacement?Yes
Refrigerant TypeR134a
Service Port?w/o Service Port
Suction End StyleP-Nut Fitting
Suction End TypeP-Nut Fitting
Switch Included?w/o Service Port
TypeDischarge & Suction Line

This part fits 2 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
2011BuickRegalSedan2.4LL4N/AHose Assembly
2010BuickLaCrosse2.4LL4N/AHose 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:

1328641315344992090451720941747211541481307166630703217781549A83148HA111971C

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