HomeHVAC > Hoses and PipesFour Seasons 66672 A/C Refrigerant Liquid Hose
Part #: 66672

Four Seasons 66672 A/C Refrigerant Liquid Hose

Hose Assembly
⚙️ 8 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, 3 and 3 Sport
🔄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 66672

The Four Seasons Hose Assembly 66672 is designed specifically for Mazda 3 and Mazda 3 Sport models. This A/C refrigerant liquid hose is engineered to handle high-pressure R134a refrigerant systems, ensuring reliable performance in your vehicle's HVAC system.

  • Constructed from durable aluminum and rubber materials
  • Compatible with R134a refrigerant type
  • Includes gasket and three O-rings for secure sealing
  • Features a male liquid line with P-nut fitting style
  • Equipped with one M10x1.250 switch service port
  • Includes orifice tube but no service port or bracket
  • OE replacement part designed for direct fit

Four Seasons Hose Assembly Product Line Details

The Four Seasons Hose Assembly product line focuses on providing reliable hose assemblies for automotive HVAC systems. This line includes components designed to meet or exceed original equipment specifications, offering precise fitment and durable construction. The 66672 hose assembly is part of this line, delivering a liquid line hose assembly without an orifice tube but with an integrated orifice tube feature, tailored for high-pressure applications in Mazda vehicles.

Detailed Product Description

This A/C refrigerant liquid hose assembly combines aluminum and rubber materials to withstand the demands of high-pressure R134a systems. The male liquid line with P-nut fitting ensures a secure connection, while the included gasket and three O-rings provide effective sealing to prevent leaks. The hose assembly features a switch service port sized M10x1.250, allowing for system monitoring or service. It is designed without a bracket and service port, simplifying installation and compatibility. As an OE replacement, part number 66672 fits Mazda 3 and Mazda 3 Sport models, maintaining factory specifications and performance.

Common Applications and Issues Addressed

  • Replacement of worn or damaged A/C refrigerant liquid hoses
  • Resolving refrigerant leaks due to degraded seals or fittings
  • Restoring proper high-pressure refrigerant flow in Mazda 3 HVAC systems
  • Addressing issues related to faulty orifice tubes within the liquid line
  • Upgrading to a reliable OE replacement hose assembly for consistent performance

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66672, ensure the system is fully depressurized and evacuated before removal of the old hose. Verify the gasket and O-rings are properly seated to prevent leaks. The P-nut fittings should be tightened to manufacturer torque specifications. Since this assembly does not include a bracket, confirm existing mounting points are secure. The switch service port allows for easy system diagnostics during installation or maintenance.

Quality Assurance and Warranty

Four Seasons products are manufactured to meet original equipment standards, ensuring compatibility and durability. The Hose Assembly 66672 undergoes rigorous quality control to maintain performance under high-pressure conditions. This part is backed by Four Seasons' warranty coverage, providing assurance against defects in materials and workmanship when installed according to guidelines.

BrandFour Seasons
Part Number66672
PositionHose Assembly
Bracket?w/o Bracket
DescriptionHose Assemblies
Friction Material Attachmentw/ Switch Port
Gasket Or Seal IncludedIncluded
Liquid Line GenderMale
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 TypeP-Nut Fitting
Switch Port SizeM10x1.250
System PressureHigh Pressure
TypeLiquid Line

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2013Mazda32.0LL4N/Aw/o Orifice Tube; w/o Skyactiv Technology; Hose Assembly
2013Mazda3 Sport2.0LL4N/Aw/o Orifice Tube; w/o Skyactiv Technology; Hose Assembly
2012Mazda32.0LL4N/Aw/o Orifice Tube; w/o Skyactiv Technology; Hose Assembly
2012Mazda3 Sport2.0LL4N/Aw/o Orifice Tube; w/o Skyactiv Technology; Hose Assembly
2011Mazda32.0LL4N/AFitment: Without Orifice Tube.; Hose Assembly
2011Mazda3 Sport2.0LL4N/AFitment: Without Orifice Tube.; Hose Assembly
2010Mazda32.0LL4N/AFitment: Without Orifice Tube.; Hose Assembly
2010Mazda3 Sport2.0LL4N/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:

21158366672791138801221A83190BBM46146XBHA111450C

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