HomeHVAC > Hoses and PipesFour Seasons 66746 A/C Refrigerant Discharge Hose
Part #: 66746

Four Seasons 66746 A/C Refrigerant Discharge Hose

Hose Assembly
⚙️ 20 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, MX-5
🔄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 66746

The Four Seasons Hose Assembly 66746 is designed specifically for Mazda MX-5 and MX-5 Miata models, providing a reliable A/C refrigerant discharge hose solution. Constructed from durable aluminum and rubber materials, this hose assembly ensures efficient refrigerant flow and system integrity.

  • Material: Aluminum and rubber construction for durability
  • Refrigerant Type: Compatible with R134-a refrigerant
  • Component Type: Discharge line for A/C systems
  • Includes gasket and fittings for secure installation
  • O-Rings included: Two green O-rings (part number 24661)
  • OEM replacement part for direct fit
  • Features P-nut fitting on suction end
  • Does not include bracket, muffler, or service port

About the Four Seasons Hose Assembly Product Line

The Four Seasons Hose Assembly line focuses on providing high-quality hose assemblies tailored for HVAC systems in vehicles. This product line emphasizes compatibility and durability, offering components like the 66746 discharge hose that meet OEM specifications. The assemblies are designed to integrate seamlessly with existing A/C systems, ensuring proper refrigerant flow and system performance.

Detailed Product Description

This A/C refrigerant discharge hose from Four Seasons is engineered to replace the original equipment discharge line in Mazda MX-5 and MX-5 Miata vehicles. The combination of aluminum and rubber materials provides resistance to heat and pressure, essential for maintaining the integrity of the refrigerant circuit. The included gasket and fittings simplify installation, while the two green O-rings ensure a tight, leak-free seal. The hose assembly is designed without a service port, bracket, muffler, or switch, focusing on the core discharge function with a P-nut fitting on the suction end for secure connection.

Common Applications and Issues Addressed

  • Replacement of worn or damaged A/C refrigerant discharge hoses
  • Resolving refrigerant leaks caused by cracked or deteriorated hoses
  • Restoring proper refrigerant flow in Mazda MX-5 and MX-5 Miata A/C systems
  • Eliminating poor A/C performance due to compromised discharge lines
  • Ensuring system integrity after component failure or maintenance

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66746, ensure the vehicle is compatible with the part by verifying the make and model (Mazda MX-5 or MX-5 Miata). Use the included gasket and fittings to secure the hose properly, and replace the O-rings with the provided green O-rings to prevent leaks. Since this assembly does not include a bracket or muffler, verify existing mounting points and hardware are intact. Avoid forcing connections to prevent damage to fittings or the hose.

Quality Assurance and Warranty

Four Seasons products are manufactured to meet or exceed OEM standards, ensuring reliable performance and fitment. The Hose Assembly 66746 is an OEM replacement part, providing confidence in compatibility and durability. Warranty details are provided by Four Seasons and typically cover defects in materials and workmanship under normal use conditions.

BrandFour Seasons
Part Number66746
PositionHose Assembly
Bracket?w/o Bracket
Component TypeDischarge Line
DescriptionHose Assemblies
Fittings IncludedIncluded
Friction Material Attachmentw/o Switch Port
Gasket Or Seal IncludedIncluded
MaterialAluminum / Rubber
Muffler?w/o Muffler
O-Ring A Number/Desc[24661] / Green 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 20 vehicles. Search below:

YearMakeModelPositionNotes
2015MazdaMX-5N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2015MazdaMX-5 MiataN/ADischarge Line; Hose Assembly
2014MazdaMX-5N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2014MazdaMX-5 MiataN/ADischarge Line; Hose Assembly
2013MazdaMX-5N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2013MazdaMX-5 MiataN/ADischarge Line; Hose Assembly
2012MazdaMX-5N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2012MazdaMX-5 MiataN/ADischarge Line; Hose Assembly
2011MazdaMX-5N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2011MazdaMX-5 MiataN/ADischarge Line; Hose Assembly
2010MazdaMX-5N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2010MazdaMX-5 MiataN/ADischarge Line; Hose Assembly
2009MazdaMX-5N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2009MazdaMX-5 MiataN/ADischarge Line; Hose Assembly
2008MazdaMX-5N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2008MazdaMX-5 MiataN/ADischarge Line; Hose Assembly
2007MazdaMX-5N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2007MazdaMX-5 MiataN/ADischarge Line; Hose Assembly
2006MazdaMX-5N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2006MazdaMX-5 MiataN/ADischarge Line; 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:

21165748134825713236674675111002787935800753A83338HA112102CNE5161461NE5161461C

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