OE Quality
60-Day Returns

Four Seasons 56629 A/C Suction and Liquid Line Hose Assembly
Overview of Four Seasons Hose Assembly 56629
The Four Seasons Hose Assembly 56629 is designed specifically for Cadillac DeVille models, providing reliable HVAC performance. This A/C suction and liquid line hose assembly is engineered to handle both high and low system pressures, ensuring efficient refrigerant flow and system integrity.
- Constructed from durable aluminum and rubber materials
- Equipped with P-nut fittings on both ends for secure connections
- Compatible with R134-a refrigerant systems
- Includes gasket, fittings, and O-rings for a complete installation
- Features a built-in orifice tube and manifold for precise refrigerant metering
- Includes a service port with M10x1.0 thread and switch service port
- Comes with a mounting bracket for proper hose positioning
- Designed as an OEM replacement part for Cadillac DeVille HVAC systems
Four Seasons Hose Assembly Product Line Details
The Four Seasons Hose Assembly product line focuses on delivering comprehensive hose solutions for automotive HVAC systems. This line includes assemblies that combine suction and liquid lines with integrated components such as orifice tubes, manifolds, and service ports. The 56629 hose assembly exemplifies this approach by providing a ready-to-install unit that meets original equipment specifications for Cadillac DeVille vehicles.
Detailed Product Description
The Four Seasons 56629 hose assembly is constructed with a combination of aluminum and rubber to withstand the demands of automotive air conditioning systems. Both ends feature P-nut fittings, ensuring a secure and leak-resistant connection to the vehicle’s HVAC components. Designed for use with R134-a refrigerant, this assembly supports both high and low system pressures, making it suitable for the suction and liquid lines of the A/C system. Included with the assembly are two slimline washer O-rings (part number 24402), a gasket, and all necessary fittings to facilitate installation. The assembly also incorporates a service port with a switch port and a mounting bracket, allowing for easy servicing and secure placement within the engine bay. The integrated orifice tube and manifold help regulate refrigerant flow, maintaining system efficiency and performance.
Common Applications and Issues Addressed
- Replacement of worn or leaking A/C suction and liquid line hoses on Cadillac DeVille models
- Restoring proper refrigerant flow and pressure balance in the HVAC system
- Resolving refrigerant leaks caused by damaged fittings or seals
- Addressing issues related to faulty orifice tubes affecting cooling performance
- Facilitating maintenance with included service ports and fittings
Installation Notes and Tips
- Ensure compatibility with Cadillac DeVille HVAC systems before installation
- Use the included gasket, O-rings, and fittings to prevent leaks
- Secure the hose assembly using the provided mounting bracket to avoid vibration damage
- Check system pressure ratings to confirm suitability for your vehicle’s A/C system
- Follow manufacturer torque specifications for P-nut fittings to ensure proper sealing
Quality Assurance and Warranty
The Four Seasons Hose Assembly 56629 is manufactured to meet or exceed OEM standards for durability and performance. This part is an exact replacement for the original equipment on Cadillac DeVille vehicles, ensuring reliable operation within the HVAC system. 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 | 56629 |
| Position | Hose Assembly |
| Bracket? | w/ Bracket |
| Description | Hose Assemblies |
| End 1 Type | P-Nut Fitting |
| End 2 Type | P-Nut Fitting |
| Fittings Included | Included |
| Friction Material Attachment | w/ Switch Port |
| Gasket Or Seal Included | Included |
| Liquid Line Style | P-Nut Fitting |
| Manifold? | w/ Manifold |
| Material | Aluminum / Rubber |
| Muffler? | w/o Muffler |
| O-Ring A Number/Desc | [24402] / Slimline Washer |
| O.E. Replacement? | Yes |
| Orifice Tube? | w/ Orifice Tube |
| Refrigerant Type | R134-A |
| Service Port Qty | 2 |
| Service Port Trd | M10x1.0 |
| Service Port? | w/ Service Port |
| Style | Hose Assy /Suc, Liq w/ Orif |
| Suction End Size | No. 10 |
| Suction End Type | P-Nut Fitting |
| Sve Port Low Side | Low Side |
| System Pressure | High Pressure / Low Pressure |
| Type | Suction & Liquid Line |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2005 | Cadillac | DeVille | N/A | w/ Orifice Tube; w/ Rear AC; Hose Assembly |
| 2004 | Cadillac | DeVille | N/A | w/ Orifice Tube; w/ Rear AC; Hose Assembly |
| 2003 | Cadillac | DeVille | N/A | w/ Orifice Tube; w/ Rear AC; Hose Assembly |
| 2002 | Cadillac | DeVille | N/A | w/ Orifice Tube; w/ Rear AC; Hose Assembly |
| 2001 | Cadillac | DeVille | N/A | w/ Orifice Tube; w/ Rear AC; Hose Assembly |
| 2000 | Cadillac | DeVille | N/A | w/ Orifice Tube; 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.