OE Quality
60-Day Returns

Four Seasons 56504 A/C Refrigerant Discharge Hose
Reliable A/C Refrigerant Discharge Hose for Chevrolet and GMC Vans
The Four Seasons Hose Assembly 56504 is designed specifically for Chevrolet Express and GMC Savana vans, providing a dependable solution for your vehicle's A/C refrigerant discharge needs. Engineered to meet original equipment specifications, this hose assembly ensures proper refrigerant flow and system performance.
- Compatible with Chevrolet Express 1500, 2500, 3500 and GMC Savana 1500, 2500, 3500 models
- Designed for R134a refrigerant systems
- Includes gasket and fittings for secure installation
- Features a discharge line with a P-nut fitting suction end
- Equipped with a switch service port but does not include the switch
- Comes with two slimline washer O-rings and one green O-ring for sealing
- OE replacement part ensuring proper fit and function
- Does not include bracket, muffler, or service port
About the Four Seasons Hose Assembly Product Line
The Four Seasons Hose Assembly line focuses on delivering precise hose assemblies tailored for HVAC systems in various vehicles. This product line emphasizes compatibility and quality, providing components like discharge lines that integrate seamlessly with existing A/C systems. The 56504 hose assembly is part of this line, offering a direct OE replacement for Chevrolet and GMC vans requiring R134a refrigerant discharge hoses.
Product Details and Specifications
This A/C refrigerant discharge hose is built to handle R134a refrigerant, commonly used in modern automotive air conditioning systems. The assembly includes all necessary fittings and gaskets, such as two slimline washer O-rings (part number 24402) and one green O-ring (part number 24606), to ensure a leak-free connection. The hose features a P-nut fitting on the suction end and a discharge line component type, designed without a bracket or muffler. While it includes a switch service port, the switch itself is not included. This part is an OE replacement, matching the original equipment specifications for a reliable fit and function in Chevrolet Express and GMC Savana vans.
Common Applications and Issues Addressed
- Replacement of worn or leaking A/C refrigerant discharge hoses
- Restoring proper refrigerant flow in Chevrolet Express and GMC Savana vans
- Resolving A/C system pressure loss due to damaged discharge lines
- Eliminating refrigerant leaks caused by faulty O-rings or fittings
- Upgrading to an OE replacement hose assembly for improved system reliability
Installation Notes and Tips
When installing the Four Seasons Hose Assembly 56504, ensure all O-rings are properly seated and lubricated to prevent leaks. The included gasket and fittings should be tightened to manufacturer torque specifications. Since the assembly does not include a bracket or muffler, verify existing mounting points and hardware compatibility. The switch service port is present but requires a separate switch if needed. Proper evacuation and recharge of the A/C system with R134a refrigerant is necessary after installation.
Quality Assurance and Warranty
Four Seasons products are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The Hose Assembly 56504 is an OE replacement part, ensuring compatibility and quality. While specific warranty details are not provided here, Four Seasons typically offers limited warranties on their HVAC components. Consult product documentation or manufacturer resources for exact warranty terms.
| Brand | Four Seasons |
| Part Number | 56504 |
| Position | Hose Assembly |
| Bracket? | w/o Bracket |
| Component Type | Discharge Line |
| Description | Hose Assemblies |
| Fittings Included | Included |
| Friction Material Attachment | w/ Switch Port |
| Gasket Or Seal Included | Included |
| Muffler? | w/o Muffler |
| O-Ring A Number/Desc | [24402] / Slimline Washer |
| O-Ring B Number/Desc | [24606] / Green O-Ring |
| O.E. Replacement? | Yes |
| Refrigerant Type | R134a |
| Service Port? | w/o Service Port |
| Suction End Type | P-Nut Fitting |
| Switch Included? | Not Included |
This part fits 105 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2020 | Chevrolet | Express 2500 | 6.0L | V8 | N/A | Discharge Line; Hose Assembly |
| 2020 | Chevrolet | Express 3500 | 6.0L | V8 | N/A | Discharge Line; Hose Assembly |
| 2020 | GMC | Savana 2500 | 6.0L | V8 | N/A | Discharge Line; Hose Assembly |
| 2020 | GMC | Savana 3500 | 6.0L | V8 | N/A | Discharge Line; Hose Assembly |
| 2019 | Chevrolet | Express 2500 | 6.0L | V8 | N/A | Discharge Line; Hose Assembly |
| 2019 | Chevrolet | Express 3500 | 6.0L | V8 | N/A | Discharge Line; Hose Assembly |
| 2019 | GMC | Savana 2500 | 6.0L | V8 | N/A | Discharge Line; Hose Assembly |
| 2019 | GMC | Savana 3500 | 6.0L | V8 | N/A | Discharge Line; Hose Assembly |
| 2018 | Chevrolet | Express 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2018 | Chevrolet | Express 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2018 | GMC | Savana 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2018 | GMC | Savana 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2017 | Chevrolet | Express 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2017 | Chevrolet | Express 2500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2017 | Chevrolet | Express 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2017 | Chevrolet | Express 3500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2017 | GMC | Savana 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2017 | GMC | Savana 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2016 | Chevrolet | Express 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2016 | Chevrolet | Express 2500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2016 | Chevrolet | Express 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2016 | Chevrolet | Express 3500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2016 | GMC | Savana 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2016 | GMC | Savana 2500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2016 | GMC | Savana 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2016 | GMC | Savana 3500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2015 | Chevrolet | Express 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2015 | Chevrolet | Express 2500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2015 | Chevrolet | Express 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2015 | Chevrolet | Express 3500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2015 | GMC | Savana 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2015 | GMC | Savana 2500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2015 | GMC | Savana 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2015 | GMC | Savana 3500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2014 | Chevrolet | Express 1500 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly | ||
| 2014 | Chevrolet | Express 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2014 | Chevrolet | Express 2500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2014 | Chevrolet | Express 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2014 | Chevrolet | Express 3500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2014 | GMC | Savana 1500 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly | ||
| 2014 | GMC | Savana 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2014 | GMC | Savana 2500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2014 | GMC | Savana 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2014 | GMC | Savana 3500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2013 | Chevrolet | Express 1500 | 5.3L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2013 | Chevrolet | Express 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2013 | Chevrolet | Express 2500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2013 | Chevrolet | Express 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2013 | Chevrolet | Express 3500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2013 | GMC | Savana 1500 | 5.3L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2013 | GMC | Savana 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2013 | GMC | Savana 2500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2013 | GMC | Savana 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2013 | GMC | Savana 3500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2012 | Chevrolet | Express 1500 | 5.3L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2012 | Chevrolet | Express 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2012 | Chevrolet | Express 2500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2012 | Chevrolet | Express 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2012 | Chevrolet | Express 3500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2012 | GMC | Savana 1500 | 5.3L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2012 | GMC | Savana 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2012 | GMC | Savana 2500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2012 | GMC | Savana 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2012 | GMC | Savana 3500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2011 | Chevrolet | Express 1500 | 5.3L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2011 | Chevrolet | Express 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2011 | Chevrolet | Express 2500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2011 | Chevrolet | Express 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2011 | Chevrolet | Express 3500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2011 | GMC | Savana 1500 | 5.3L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2011 | GMC | Savana 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2011 | GMC | Savana 2500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2011 | GMC | Savana 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2011 | GMC | Savana 3500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2010 | Chevrolet | Express 1500 | 5.3L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2010 | Chevrolet | Express 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2010 | Chevrolet | Express 2500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2010 | Chevrolet | Express 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2010 | Chevrolet | Express 3500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2010 | GMC | Savana 1500 | 5.3L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2010 | GMC | Savana 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2010 | GMC | Savana 2500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2010 | GMC | Savana 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2010 | GMC | Savana 3500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2009 | Chevrolet | Express 1500 | 5.3L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2009 | Chevrolet | Express 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2009 | Chevrolet | Express 2500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2009 | Chevrolet | Express 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2009 | Chevrolet | Express 3500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2009 | GMC | Savana 1500 | 5.3L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2009 | GMC | Savana 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2009 | GMC | Savana 2500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2009 | GMC | Savana 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2009 | GMC | Savana 3500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2008 | Chevrolet | Express 1500 | 5.3L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2008 | Chevrolet | Express 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2008 | Chevrolet | Express 2500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2008 | Chevrolet | Express 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2008 | Chevrolet | Express 3500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2008 | Chevrolet | Express 3500 | 5.3L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2008 | GMC | Savana 1500 | 5.3L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2008 | GMC | Savana 2500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2008 | GMC | Savana 2500 | 4.8L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2008 | GMC | Savana 3500 | 6.0L | V8 | N/A | Compatible with various vehicles A/C refrigerant discharge hose; Hose Assembly |
| 2008 | GMC | Savana 3500 | 4.8L | V8 | N/A | Compatible 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.