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Four Seasons 56448 A/C Refrigerant Suction Hose
Overview of Four Seasons Hose Assembly 56448
The Four Seasons Hose Assembly 56448 is designed for reliable performance in the HVAC system of select GM vehicles. This A/C refrigerant suction hose is engineered to meet the specific needs of Buick Montana, Chevrolet Uplander, Pontiac Relay, and Saturn Terraza models, ensuring proper refrigerant flow and system efficiency.
- Constructed from durable aluminum and rubber materials
- Features a flange end and a P-nut fitting for secure connections
- Compatible with R134-a refrigerant systems
- Includes gasket, fittings, and bracket for installation
- Designed as a low-pressure suction line with service port included
Four Seasons Hose Assembly Product Line Details
The Hose Assembly line by Four Seasons focuses on delivering complete hose solutions for automotive HVAC systems. This product line emphasizes compatibility and durability, providing assemblies that include necessary fittings and seals to simplify installation and maintain system integrity. The 56448 part is a direct OE replacement, ensuring it meets original equipment specifications for the vehicles it supports.
Detailed Product Description
This A/C refrigerant suction hose assembly combines aluminum and rubber to balance flexibility and strength, suitable for low-pressure refrigerant flow in R134-a systems. The hose features a flange on one end and a P-nut fitting on the other, designed to fit securely within the HVAC system of Buick Montana, Chevrolet Uplander, Pontiac Relay, and Saturn Terraza models. Included components such as the gasket, slimline washer O-rings (quantity of three), fittings, and mounting bracket facilitate a complete and secure installation. The assembly does not include a muffler or switch but comes with a service port to aid in system maintenance.
Common Applications and Issues Addressed
- Replacement of worn or leaking A/C refrigerant suction hoses
- Restoring proper refrigerant flow in Buick Montana and Chevrolet Uplander HVAC systems
- Resolving low-pressure leaks in Pontiac Relay and Saturn Terraza air conditioning lines
- Eliminating system inefficiencies caused by damaged or cracked hoses
- Ensuring compatibility with R134-a refrigerant for optimal system performance
Installation Notes and Tips
- Verify compatibility with vehicle make and model before installation
- Ensure all included fittings, gaskets, and O-rings are properly seated to prevent leaks
- Use the included bracket to secure the hose assembly firmly in place
- Check for proper torque on flange and P-nut fittings to maintain system pressure
- Inspect the service port for accessibility during routine maintenance
Quality Assurance and Warranty
The Four Seasons Hose Assembly 56448 is an OE replacement part, manufactured to meet original equipment standards for durability and fitment. It includes all necessary seals and fittings to ensure a reliable installation. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.
| Brand | Four Seasons |
| Part Number | 56448 |
| Position | Hose Assembly |
| Bracket? | w/ Bracket |
| Component Type | Suction Line |
| Description | Hose Assemblies |
| End 1 Type | Flange |
| End 2 Type | P-Nut Fitting |
| Fittings Included | Included |
| Friction Material Attachment | w/o Switch Port |
| Gasket Or Seal Included | Included |
| Material | Aluminum / Rubber |
| Muffler? | w/o Muffler |
| O-Ring A Number/Desc | [24404] / Slimline Washer |
| O.E. Replacement? | Yes |
| Refrigerant Type | R134-A |
| Service Port? | w/ Service Port |
| Suction End Type | P-Nut Fitting |
| Switch Included? | Not Included |
| System Pressure | Low Pressure |
This part fits 16 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2008 | Chevrolet | Uplander | N/A | Suction Line; Evaporator End; w/ Rear AC; Hose Assembly | ||
| 2007 | Buick | Terraza | N/A | Suction Line; Evaporator End; w/ Rear AC; Hose Assembly | ||
| 2007 | Chevrolet | Uplander | N/A | Suction Line; Evaporator End; w/ Rear AC; Hose Assembly | ||
| 2007 | Saturn | Relay | N/A | Suction Line; Evaporator End; w/ Rear AC; Hose Assembly | ||
| 2006 | Buick | Terraza | 3.5L | V6 | N/A | Suction Line; Evaporator End; w/ Rear AC; Hose Assembly |
| 2006 | Buick | Terraza | 3.9L | V6 | N/A | Suction Line; Evaporator End; w/ Rear AC; Hose Assembly |
| 2006 | Chevrolet | Uplander | 3.5L | V6 | N/A | Suction Line; Evaporator End; w/ Rear AC; Hose Assembly |
| 2006 | Chevrolet | Uplander | 3.9L | V6 | N/A | Suction Line; Evaporator End; w/ Rear AC; Hose Assembly |
| 2006 | Pontiac | Montana | 3.5L | V6 | N/A | Suction Line; Evaporator End; w/ Rear AC; Hose Assembly |
| 2006 | Pontiac | Montana | 3.9L | V6 | N/A | Suction Line; Evaporator End; w/ Rear AC; Hose Assembly |
| 2006 | Saturn | Relay | 3.5L | V6 | N/A | Suction Line; Evaporator End; w/ Rear AC; Hose Assembly |
| 2006 | Saturn | Relay | 3.9L | V6 | N/A | Suction Line; Evaporator End; w/ Rear AC; Hose Assembly |
| 2005 | Buick | Terraza | N/A | Suction Line; Evaporator End; w/ Rear AC; Hose Assembly | ||
| 2005 | Chevrolet | Uplander | N/A | Suction Line; Evaporator End; w/ Rear AC; Hose Assembly | ||
| 2005 | Pontiac | Montana | 3.5L | V6 | N/A | Suction Line; Evaporator End; w/ Rear AC; Hose Assembly |
| 2005 | Saturn | Relay | N/A | Suction Line; Evaporator End; w/ Rear AC; 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.