HomeHVAC > Hoses and PipesFour Seasons 56997 A/C Refrigerant Discharge Hose
Part #: 56997

Four Seasons 56997 A/C Refrigerant Discharge Hose

Hose Assembly
⚙️ 15 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Hose Assembly
🚗Fitment: Cadillac, Chevrolet, and GMC, Escalade, Escalade ESV, Cheyenne, Silverado 1500, Silverado 2500, Suburban, Tahoe, Sierra, Sierra 1500, Yukon, and Yukon XL
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Reliable A/C Refrigerant Discharge Hose for GM Trucks and SUVs

The Four Seasons Hose Assembly part number 56997 is designed to provide a dependable replacement for the A/C refrigerant discharge hose in select Cadillac, Chevrolet, and GMC vehicles. Engineered to meet original equipment specifications, this hose assembly ensures proper refrigerant flow and system performance for models like the Chevrolet Silverado 1500 and GMC Sierra.

Key Features of Four Seasons Hose Assembly 56997

  • Compatible with refrigerants R134a and R1234yf
  • Includes gasket and fittings for secure installation
  • Equipped with a muffler to reduce system noise
  • Features a P-nut fitting on the suction end for proper connection
  • Includes a switch service port but does not include the switch itself
  • Designed as an original equipment replacement part

About the Four Seasons Hose Assembly Product Line

The Four Seasons Hose Assembly line focuses on delivering precise HVAC hose and pipe replacements that meet or exceed OEM standards. This product line emphasizes durability and fitment accuracy, ensuring that components like the A/C refrigerant discharge hose integrate seamlessly with vehicle systems. The 56997 hose assembly is part of this line, offering a direct replacement solution for specific GM trucks and SUVs.

Detailed Product Description

This A/C refrigerant discharge hose assembly is engineered for use with R134a and R1234yf refrigerants, making it suitable for modern air conditioning systems. The included gasket and fittings simplify installation and help maintain a leak-free seal. The muffler integrated into the hose assembly reduces operational noise, contributing to a quieter HVAC system. The P-nut fitting on the suction end ensures a secure and proper connection to the vehicle’s A/C components. While the hose includes a switch service port, the switch itself is not included, allowing for flexibility depending on the vehicle’s configuration.

Common Applications and Issues Addressed

  • Replacement of worn or cracked A/C refrigerant discharge hoses
  • Resolving refrigerant leaks in the discharge line
  • Eliminating excessive noise caused by damaged mufflers in the hose assembly
  • Restoring proper refrigerant flow in Cadillac Escalade and GMC Yukon HVAC systems
  • Ensuring compatibility with R134a and R1234yf refrigerants in Chevrolet Tahoe models

Installation Notes and Tips

  • Verify vehicle compatibility with Cadillac, Chevrolet, and GMC models listed before installation
  • Ensure all fittings and gaskets are properly seated to prevent leaks
  • Use appropriate tools to tighten the P-nut fitting without over-torquing
  • Inspect the existing A/C system for additional wear or damage during replacement
  • Consult vehicle service manual for specific torque specifications and procedures

Quality Assurance and Warranty

Four Seasons Hose Assembly 56997 is manufactured to meet original equipment standards, ensuring reliable performance and fitment. The product includes all necessary gaskets and fittings to facilitate a proper installation. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty against defects in materials and workmanship. Refer to the manufacturer’s documentation for complete warranty information.

BrandFour Seasons
Part Number56997
PositionHose Assembly
Component TypeDischarge Line
DescriptionHose Assemblies
Fittings IncludedIncluded
Friction Material Attachmentw/ Switch Port
Gasket Or Seal IncludedIncluded
Muffler?w/ Muffler
O.E. Replacement?Yes
Refrigerant TypeR134a, R1234yf
Service Port?w/o Service Port
Suction End TypeP-Nut Fitting
Switch Included?Not Included

This part fits 15 vehicles. Search below:

YearMakeModelPositionNotes
2015CadillacEscaladeN/ADischarge Line; 1st Design; w/ Muffler; Hose Assembly
2015CadillacEscalade ESVN/ADischarge Line; 1st Design; w/ Muffler; Hose Assembly
2015ChevroletCheyenneN/ADischarge Line; 1st Design; w/ Muffler; Hose Assembly
2015ChevroletSilverado 1500N/ADischarge Line; 1st Design; w/ Muffler; Hose Assembly
2015ChevroletSilverado 2500N/ADischarge Line; 1st Design; w/ Muffler; Hose Assembly
2015ChevroletTahoeN/ADischarge Line; 1st Design; w/ Muffler; Hose Assembly
2015GMCSierraN/ADischarge Line; 1st Design; w/ Muffler; Hose Assembly
2015GMCSierra 1500N/ADischarge Line; 1st Design; w/ Muffler; Hose Assembly
2015GMCYukonN/ADischarge Line; 1st Design; w/ Muffler; Hose Assembly
2015GMCYukon XLN/ADischarge Line; 1st Design; w/ Muffler; Hose Assembly
2014ChevroletCheyenneN/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2014ChevroletSilverado 1500N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2014ChevroletSilverado 2500N/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2014GMCSierraN/ACompatible with various vehicles A/C refrigerant discharge hose; Hose Assembly
2014GMCSierra 1500N/ACompatible with various vehicles A/C refrigerant discharge hose; 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:

1534670227778312343893228240448128525699757097270018678762084194976A82444HA111825CT56997

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