HomeHVAC > Hoses and PipesFour Seasons 66903 A/C Refrigerant Suction Hose
Part #: 66903

Four Seasons 66903 A/C Refrigerant Suction Hose

Hose Assembly
⚙️ 1 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Hose Assembly
🚗Fitment: Ram, 1500
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Reliable A/C Refrigerant Suction Hose for Ram 1500

The Four Seasons Hose Assembly 66903 is designed to maintain optimal air conditioning performance in your Ram 1500. Engineered with durable aluminum and rubber materials, this A/C refrigerant suction hose ensures efficient refrigerant flow and long-lasting service.

Key Features of Four Seasons Hose Assembly 66903

  • Constructed from aluminum and rubber for durability and flexibility
  • Equipped with P-nut fittings on both ends for secure connections
  • Compatible with R134a refrigerant systems
  • Includes slim line sealing washers (O-Rings 24404 and 24255) for leak prevention
  • Service port included for easy system access
  • Designed without bracket or muffler for straightforward installation

About the Four Seasons Hose Assembly Product Line

The Hose Assembly line by Four Seasons focuses on providing high-quality hose assemblies tailored for HVAC systems in vehicles. This product line emphasizes reliable materials and precise fittings to ensure compatibility and performance. The 66903 hose assembly is part of this line, offering a robust solution for refrigerant suction needs in the Ram 1500.

Detailed Product Description

The Four Seasons 66903 A/C refrigerant suction hose is specifically engineered for the Ram 1500 model. Its aluminum and rubber construction balances strength and flexibility, allowing it to withstand the pressures and temperatures typical in automotive HVAC systems. Both ends feature P-nut fittings, which provide a secure and leak-resistant connection. The included slim line sealing washers (O-Rings 24404 and 24255) further enhance the seal integrity, reducing the risk of refrigerant leaks. This hose assembly is compatible with R134a refrigerant, the standard for many modern vehicles. Additionally, the service port included facilitates maintenance and system checks without requiring hose removal.

Common Applications and Issues Addressed

  • Replacement of worn or damaged A/C refrigerant suction hoses in Ram 1500
  • Resolving refrigerant leaks caused by degraded seals or fittings
  • Improving A/C system efficiency by restoring proper refrigerant flow
  • Addressing hose cracks or brittleness due to age or environmental exposure
  • Facilitating maintenance with an integrated service port

Installation Notes and Tips

When installing the Four Seasons 66903 hose assembly, ensure that both P-nut fittings are tightened to manufacturer torque specifications to prevent leaks. Verify that the included slim line sealing washers are properly seated to maintain a secure seal. Since this hose assembly does not include a bracket or muffler, confirm that the hose routing matches OEM guidelines to avoid contact with moving parts or heat sources. The service port allows for convenient refrigerant system servicing without hose removal.

Quality Assurance and Warranty

Four Seasons products are manufactured to meet industry standards for automotive HVAC components. The 66903 hose assembly undergoes quality checks to ensure material integrity and fitment accuracy for the Ram 1500. 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 Number66903
PositionHose Assembly
MaterialAluminum / rubber
End 1 TypeP-nut fitting
End 2 TypeP-nut fitting
Refrigerant TypeR134a
Gasket Or Seal IncludedIncluded
Switch Service PortNo
Bracket?W/o bracket
DescriptionHose assemblies
Muffler?W/o muffler
O-Ring A Number/Desc24404 / slim line sealing washer
O-Ring A Quantity1
O-Ring B Number/Desc24255 / slim line sealing washer
O-Ring B Quantity1
Service Port IncludedYes

This part fits 1 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2013Ram15003.6LV6N/Aw/ R134a; 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:

21181448134366690368105176AA68105176ABA83583HA112667C

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