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Global Parts 4812939 A/C Refrigerant Discharge Hose
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.
| Brand | Global Parts |
| Part Number | 4812939 |
| Material | Aluminum / rubber |
| Refrigerant Type | R134a / r1234yf |
| Gasket Or Seal Included | Yes |
| Hose Connection Type | P-nut fitting |
| Mounting Bracket Included | No |
| Service Port Included | No |
| Switch Included | No |
| Switch Port Included | Yes |
This part fits 29 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2019 | Cadillac | Escalade | 6.2L | V8 | N/A | |
| 2019 | Cadillac | Escalade ESV | 6.2L | V8 | N/A | |
| 2018 | Cadillac | Escalade | 6.2L | V8 | N/A | |
| 2018 | Cadillac | Escalade ESV | 6.2L | V8 | N/A | |
| 2018 | Chevrolet | Cheyenne | 5.3L | V8 | N/A | |
| 2018 | Chevrolet | Cheyenne | 6.2L | V8 | N/A | |
| 2018 | Chevrolet | Silverado 1500 | 5.3L | V8 | N/A | |
| 2018 | Chevrolet | Silverado 1500 | 6.2L | V8 | N/A | |
| 2018 | Chevrolet | Silverado 1500 | 4.3L | V6 | N/A | |
| 2018 | Chevrolet | Silverado 2500 | 5.3L | V8 | N/A | |
| 2018 | GMC | Sierra | 6.2L | V8 | N/A | |
| 2018 | GMC | Sierra | 5.3L | V8 | N/A | |
| 2018 | GMC | Sierra 1500 | 4.3L | V6 | N/A | |
| 2018 | GMC | Sierra 1500 | 5.3L | V8 | N/A | |
| 2018 | GMC | Sierra 1500 | 6.2L | V8 | N/A | |
| 2017 | Cadillac | Escalade | 6.2L | V8 | N/A | |
| 2017 | Cadillac | Escalade ESV | 6.2L | V8 | N/A | |
| 2017 | Chevrolet | Cheyenne | 5.3L | V8 | N/A | |
| 2017 | Chevrolet | Cheyenne | 6.2L | V8 | N/A | |
| 2017 | Chevrolet | Silverado 1500 | 5.3L | V8 | N/A | |
| 2017 | Chevrolet | Silverado 1500 | 6.2L | V8 | N/A | |
| 2017 | Chevrolet | Silverado 1500 | 4.3L | V6 | N/A | |
| 2017 | Chevrolet | Silverado 2500 | 4.3L | V6 | N/A | |
| 2017 | Chevrolet | Silverado 2500 | 5.3L | V8 | N/A | |
| 2017 | GMC | Sierra | 6.2L | V8 | N/A | |
| 2017 | GMC | Sierra | 5.3L | V8 | N/A | |
| 2017 | GMC | Sierra 1500 | 4.3L | V6 | N/A | |
| 2017 | GMC | Sierra 1500 | 5.3L | V8 | N/A | |
| 2017 | GMC | Sierra 1500 | 6.2L | V8 | N/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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.