OE Quality
60-Day Returns

Four Seasons 55064 A/C Refrigerant Discharge / Suction Hose Assembly
Overview of Four Seasons Hose Assembly 55064
The Four Seasons Hose Assembly 55064 is designed for reliable HVAC performance in select Buick, Oldsmobile, and Pontiac vehicles. This A/C refrigerant discharge and suction hose assembly is engineered to meet original equipment specifications, ensuring proper fit and function for models like the Buick Century, Pontiac Bonneville, and Oldsmobile Delta 88.
- Constructed from durable aluminum and rubber materials
- Compatible with R134a refrigerant systems
- Includes green o-rings for secure sealing
- Features a manifold and switch service port
- Designed without fittings, brackets, or mufflers
- Discharge and suction ends use female UNF o-ring style connections
Four Seasons Hose Assembly Product Line Details
The Hose Assembly product line from Four Seasons focuses on delivering precise HVAC hose and pipe replacements that align with original equipment standards. This line emphasizes quality materials such as aluminum and rubber to withstand refrigerant pressures and temperature variations. The 55064 hose assembly is part of this line, offering a combination of discharge and suction lines with included gaskets and o-rings to facilitate a secure and leak-free installation.
Detailed Product Description
The Four Seasons 55064 hose assembly is specifically designed for use with R134a refrigerant, common in many late-model Buick, Oldsmobile, and Pontiac vehicles. It includes multiple green o-rings ([24608], [24612], and [24632]) to ensure tight seals at connection points. The assembly features a female UNF o-ring style on both discharge and suction ends, compatible with manifold connections. While the assembly includes a switch service port, it does not come with fittings, brackets, or mufflers, allowing for flexibility depending on the vehicle’s existing setup.
Common Applications and Issues Addressed
- Replacement of worn or leaking A/C refrigerant discharge and suction hoses
- Restoring proper refrigerant flow in Buick Century and Pontiac Bonneville A/C systems
- Fixing refrigerant leaks caused by damaged or degraded hose materials
- Upgrading OEM hoses to maintain system efficiency in Oldsmobile Delta 88 models
- Resolving issues related to faulty or missing o-rings in the HVAC system
Installation Notes and Tips
- Ensure compatibility with your vehicle’s make and model before installation
- Verify that all included green o-rings are properly seated to prevent leaks
- Use appropriate tools to connect female UNF o-ring fittings securely
- Check for the presence of a switch service port and connect as needed
- Inspect existing brackets and fittings, as this assembly does not include them
Quality Assurance and Warranty
Four Seasons manufactures the 55064 hose assembly to meet or exceed original equipment standards for HVAC hoses and pipes. The use of aluminum and rubber materials ensures durability and resistance to refrigerant and temperature stresses. This part is an exact OE replacement designed for Buick, Oldsmobile, and Pontiac vehicles. Warranty details should be confirmed with the point of purchase or manufacturer documentation.
| Brand | Four Seasons |
| Part Number | 55064 |
| Position | Hose Assembly |
| Bracket? | w/o Bracket |
| Discharge End Style | UNF O-Ring |
| Discharge End Type | Female O-Ring |
| Fittings Included | Not Included |
| Friction Material Attachment | w/ Switch Port |
| Gasket Or Seal Included | Included |
| Manifold? | Yes |
| Material | Aluminum / Rubber |
| Muffler? | w/o Muffler |
| O-Ring A Number/Desc | [24608] / Green O-Ring |
| O-Ring B Number/Desc | [24612] / Green O-Ring |
| O-Ring C Number/Desc | [24632] / Green O-Ring |
| O-Rings Included? | Included |
| O.E. Replacement? | Yes |
| Refrigerant Type | R134a |
| Service Port? | w/o Service Port |
| Suction End Style | UNF O-Ring |
| Suction End Type | Female O-Ring |
| Switch Included? | Not Included |
| Type | Discharge & Suction Line |
This part fits 21 vehicles. Search below:
| Year | Make | Model | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1988 | Buick | Century | Wagon | 3.8L | V6 | N/A | Hose Assembly |
| 1988 | Buick | LeSabre | Sedan | 3.8L | V6 | N/A | Hose Assembly |
| 1988 | Buick | LeSabre | Wagon | 3.8L | V6 | N/A | Hose Assembly |
| 1988 | Buick | LeSabre | Coupe | 3.8L | V6 | N/A | Hose Assembly |
| 1988 | Oldsmobile | 98 | N/A | Hose Assembly | |||
| 1988 | Oldsmobile | Delta 88 | N/A | Hose Assembly | |||
| 1988 | Pontiac | Bonneville | N/A | Hose Assembly | |||
| 1987 | Buick | Century | Wagon | 3.8L | V6 | N/A | Hose Assembly |
| 1987 | Buick | LeSabre | Sedan | 3.8L | V6 | N/A | Hose Assembly |
| 1987 | Buick | LeSabre | Coupe | 3.8L | V6 | N/A | Hose Assembly |
| 1987 | Oldsmobile | 98 | N/A | Hose Assembly | |||
| 1987 | Oldsmobile | Delta 88 | N/A | Hose Assembly | |||
| 1987 | Pontiac | Bonneville | N/A | Hose Assembly | |||
| 1986 | Buick | Century | Wagon | 3.8L | V6 | N/A | Hose Assembly |
| 1986 | Buick | LeSabre | Sedan | 3.8L | V6 | N/A | Hose Assembly |
| 1986 | Buick | LeSabre | Coupe | 3.8L | V6 | N/A | Hose Assembly |
| 1986 | Buick | LeSabre | Sedan | 3.0L | V6 | N/A | Hose Assembly |
| 1986 | Buick | LeSabre | Coupe | 3.0L | V6 | N/A | Hose Assembly |
| 1986 | Oldsmobile | 98 | N/A | Hose Assembly | |||
| 1986 | Oldsmobile | Delta 88 | 3.8L | V6 | N/A | Hose Assembly | |
| 1986 | Pontiac | Bonneville | 3.8L | V6 | N/A | 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.