HomeHVAC > Hoses and PipesFour Seasons 66939 A/C Refrigerant Suction Hose
Part #: 66939

Four Seasons 66939 A/C Refrigerant Suction Hose

Hose Assembly
⚙️ 2 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$42.73Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ 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: Acura, MDX
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable A/C Refrigerant Suction Hose for Acura MDX

The Four Seasons Hose Assembly part number 66939 is designed specifically for the Acura MDX to ensure efficient air conditioning system performance. Constructed with durable aluminum and rubber materials, this A/C refrigerant suction hose provides a secure and leak-resistant connection for R134a refrigerant systems.

Key Features of Four Seasons Hose Assembly 66939

  • Material: Combination of aluminum and rubber for durability and flexibility
  • End Connections: Both ends feature male p-nut fittings for secure attachment
  • Refrigerant Compatibility: Designed for R134a refrigerant systems
  • Includes gasket and two O-rings (part number 24150) for proper sealing
  • Equipped with a muffler to reduce noise during operation
  • Does not include a bracket 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 reliable materials and precise fitment to maintain optimal refrigerant flow and system integrity. The 66939 hose assembly is part of this line, offering a balance of durability and performance for the Acura MDX’s air conditioning system.

Detailed Product Description

This A/C refrigerant suction hose is engineered to meet the specific requirements of the Acura MDX’s HVAC system. The aluminum and rubber construction ensures resistance to corrosion and flexibility to accommodate engine vibrations. Both ends of the hose feature male p-nut fittings, allowing for a secure and leak-free connection. The included gasket and two O-rings (24150) help maintain a tight seal, preventing refrigerant loss. Additionally, the integrated muffler reduces operational noise, contributing to a quieter driving experience. This hose assembly is designed without a bracket or service port, focusing on essential functionality and fitment.

Common Applications and Issues Addressed

  • Replacement of worn or damaged A/C refrigerant suction hoses in Acura MDX models
  • Eliminating refrigerant leaks caused by cracked or deteriorated hoses
  • Reducing noise from the A/C system with the built-in muffler
  • Ensuring proper refrigerant flow and system pressure for efficient cooling
  • Maintaining system integrity with included gasket and O-rings for sealing

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66939, ensure that both male p-nut fittings are tightened to manufacturer specifications to prevent leaks. Verify that the included gasket and O-rings are properly seated before final assembly. Since this hose does not include a bracket, confirm that the hose is securely routed and supported to avoid contact with moving parts or excessive vibration. The absence of a service port means that refrigerant servicing will require separate access points.

Quality Assurance and Warranty

Four Seasons products are manufactured to meet industry standards for HVAC components. The Hose Assembly 66939 undergoes quality checks to ensure durability and proper fitment for the Acura MDX. While specific warranty details are not provided here, Four Seasons typically offers coverage against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandFour Seasons
Part Number66939
PositionHose Assembly
MaterialAluminum / rubber
End 1 TypeMale p-nut
End 2 TypeMale p-nut
Refrigerant TypeR134a
Gasket Or Seal IncludedIncluded
Switch Service PortNo
Bracket?W/o bracket
DescriptionHose assemblies
Muffler?W/ muffler
O-Ring A Number/Desc24150 / o-ring
O-Ring A Quantity2
Service Port IncludedNo

This part fits 2 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2020AcuraMDX3.5LV6N/ASuction Line; Hose Assembly
2019AcuraMDX3.5LV6N/ASuction 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:

2118506693980311TYRA02A83619

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