HomeHVAC > Hoses and PipesGlobal Parts 4812939 A/C Refrigerant Discharge Hose
Part #: 4812939

Global Parts 4812939 A/C Refrigerant Discharge Hose

⚙️ 29 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Cadillac, Chevrolet, and GMC, Cheyenne, Escalade, Escalade ESV, Sierra, Sierra 1500, Silverado 1500, and Silverado 2500
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Reliable A/C Refrigerant Discharge Hose for GM Trucks and SUVs

The Global Parts 4812939 A/C Refrigerant Discharge Hose is engineered to meet the specific needs of Cadillac, Chevrolet, and GMC vehicles. Designed for models like the Escalade, Sierra 1500, and Silverado 2500, this hose ensures proper refrigerant flow and system integrity.

  • Constructed from durable aluminum and rubber materials for long-lasting performance
  • Compatible with R134a and R1234yf refrigerants
  • Includes gasket or seal to prevent leaks
  • Features a P-nut fitting for secure hose connections
  • Switch port included for system monitoring

Durable Construction and Precise Fitment

This A/C refrigerant discharge hose combines aluminum and rubber components to provide flexibility and resistance to wear under high pressure and temperature conditions. The inclusion of a gasket or seal helps maintain a tight connection, reducing the risk of refrigerant leaks. The P-nut fitting connection type ensures a secure and reliable attachment to the vehicle’s HVAC system. Designed specifically for use with R134a and R1234yf refrigerants, this hose supports modern A/C systems in select Cadillac, Chevrolet, and GMC models.

Compatible Vehicles and Applications

  • Cadillac Escalade and Escalade ESV
  • Chevrolet Silverado 1500 and Silverado 2500
  • GMC Sierra and Sierra 1500
  • Chevrolet and GMC Cheyenne models

This part is ideal for replacing worn or damaged refrigerant discharge hoses in these vehicles, helping restore proper A/C system function.

Common Issues Addressed by This Part

  • Refrigerant leaks due to cracked or deteriorated hoses
  • Reduced A/C cooling efficiency from compromised discharge lines
  • System pressure loss caused by faulty hose connections
  • Compatibility issues with newer refrigerants like R1234yf
  • Wear from exposure to heat and vibration in the engine bay

Installation Notes and Tips

Ensure the vehicle’s A/C system is fully depressurized before removing the old hose. Verify that the gasket or seal is properly seated to prevent leaks. Use the P-nut fitting to secure the hose connection firmly, avoiding overtightening which can damage fittings. Check for any signs of wear or damage on adjacent components during installation.

Quality Assurance and Warranty

Global Parts 4812939 is manufactured to meet OEM specifications for fit and function. The use of aluminum and rubber materials provides durability under typical operating conditions. This part includes a gasket or seal to maintain system integrity. Warranty details should be confirmed with the distributor or retailer.

BrandGlobal Parts
Part Number4812939
MaterialAluminum / rubber
Refrigerant TypeR134a / r1234yf
Gasket Or Seal IncludedYes
Hose Connection TypeP-nut fitting
Mounting Bracket IncludedNo
Service Port IncludedNo
Switch IncludedNo
Switch Port IncludedYes

This part fits 29 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2019CadillacEscalade6.2LV8N/A
2019CadillacEscalade ESV6.2LV8N/A
2018CadillacEscalade6.2LV8N/A
2018CadillacEscalade ESV6.2LV8N/A
2018ChevroletCheyenne5.3LV8N/A
2018ChevroletCheyenne6.2LV8N/A
2018ChevroletSilverado 15005.3LV8N/A
2018ChevroletSilverado 15006.2LV8N/A
2018ChevroletSilverado 15004.3LV6N/A
2018ChevroletSilverado 25005.3LV8N/A
2018GMCSierra6.2LV8N/A
2018GMCSierra5.3LV8N/A
2018GMCSierra 15004.3LV6N/A
2018GMCSierra 15005.3LV8N/A
2018GMCSierra 15006.2LV8N/A
2017CadillacEscalade6.2LV8N/A
2017CadillacEscalade ESV6.2LV8N/A
2017ChevroletCheyenne5.3LV8N/A
2017ChevroletCheyenne6.2LV8N/A
2017ChevroletSilverado 15005.3LV8N/A
2017ChevroletSilverado 15006.2LV8N/A
2017ChevroletSilverado 15004.3LV6N/A
2017ChevroletSilverado 25004.3LV6N/A
2017ChevroletSilverado 25005.3LV8N/A
2017GMCSierra6.2LV8N/A
2017GMCSierra5.3LV8N/A
2017GMCSierra 15004.3LV6N/A
2017GMCSierra 15005.3LV8N/A
2017GMCSierra 15006.2LV8N/A

* 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:

15-34828153482823357011H-8561H8561HA113409C

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