HomeHVAC > Hoses and PipesFour Seasons 66676 A/C Refrigerant Liquid Hose
Part #: 66676

Four Seasons 66676 A/C Refrigerant Liquid Hose

Hose Assembly
⚙️ 6 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: Mazda, CX-3
🔄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 66676

The Four Seasons Hose Assembly 66676 is designed specifically for the Mazda CX-3 HVAC system. This A/C refrigerant liquid hose is engineered to handle high-pressure R134a refrigerant, ensuring reliable performance in your vehicle's air conditioning system.

  • Constructed from durable aluminum and rubber materials
  • Compatible with R134a refrigerant type
  • High-pressure system rated for demanding HVAC applications
  • Includes gasket and two O-rings for secure sealing
  • Features a P-nut fitting liquid line style
  • Equipped with a male springlock suction end type
  • Includes a switch service port with a 3/8" - 24 size
  • OE replacement part designed for Mazda CX-3
  • Comes with an orifice tube and without a bracket or service port

About the Four Seasons Hose Assembly Product Line

The Four Seasons Hose Assembly line focuses on providing reliable hose assemblies for automotive HVAC systems. This product line emphasizes quality materials and precise fitment to meet original equipment specifications. The 66676 hose assembly is part of this line, offering a liquid line hose assembly without an orifice tube but with an integrated orifice tube feature, designed to maintain system integrity and performance in Mazda CX-3 vehicles.

Detailed Product Description

This A/C refrigerant liquid hose assembly combines aluminum and rubber to provide durability and flexibility under high-pressure conditions typical of R134a refrigerant systems. The inclusion of a gasket and two O-rings ensures a tight seal to prevent leaks. The P-nut fitting style allows for secure connections, while the male springlock suction end type facilitates easy installation. The hose assembly also features a switch service port sized at 3/8" - 24, enabling system diagnostics or maintenance without disassembly. Designed as an OE replacement, part number 66676 fits the Mazda CX-3 HVAC system precisely, maintaining factory performance standards.

Common Applications and Issues Addressed

  • Replacement of worn or damaged A/C refrigerant liquid hoses in Mazda CX-3
  • Resolving refrigerant leaks caused by cracked or deteriorated hoses
  • Restoring proper high-pressure refrigerant flow in the HVAC system
  • Addressing issues related to faulty or missing orifice tubes within the liquid line
  • Improving system reliability by replacing assemblies without brackets or service ports

Installation Notes and Tips

  • Ensure compatibility with Mazda CX-3 HVAC systems before installation
  • Use the included gasket and O-rings to achieve a leak-free seal
  • Check the switch service port for proper connection and accessibility
  • Handle the aluminum and rubber components carefully to avoid damage during installation
  • Follow manufacturer torque specifications for P-nut fittings and springlock connections

Quality Assurance and Warranty

Four Seasons products are manufactured to meet or exceed original equipment standards. The Hose Assembly 66676 undergoes rigorous quality control to ensure durability and performance in high-pressure HVAC applications. This part is backed by Four Seasons' standard warranty coverage, providing confidence in its reliability for Mazda CX-3 owners.

BrandFour Seasons
Part Number66676
PositionHose Assembly
Bracket?w/o Bracket
DescriptionHose Assemblies
Friction Material Attachmentw/ Switch Port
Gasket Or Seal IncludedIncluded
Liquid Line StyleP-Nut Fitting
MaterialAluminum / Rubber
O.E. Replacement?Yes
Orifice Tube?w/ Orifice Tube
Refrigerant TypeR134a
Service Port?w/o Service Port
StyleLiquid Line Hose Assembly w/o Orifice Tube
Suction End TypeMale Springlock
Switch Port Size3/8" - 24
System PressureHigh Pressure
TypeLiquid Line

This part fits 6 vehicles. Search below:

YearMakeModelPositionNotes
2021MazdaCX-3N/AFitment: Without Orifice Tube.; Hose Assembly
2020MazdaCX-3N/AFitment: Without Orifice Tube.; Hose Assembly
2019MazdaCX-3N/AFitment: Without Orifice Tube.; Hose Assembly
2018MazdaCX-3N/AFitment: Without Orifice Tube.; Hose Assembly
2017MazdaCX-3N/AFitment: Without Orifice Tube.; Hose Assembly
2016MazdaCX-3N/AFitment: Without Orifice Tube.; 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:

21158766676791135A83194D10W6146XADH0M6146XHA113700C

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