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Four Seasons 66178 A/C Refrigerant Suction Hose
Overview of Four Seasons Hose Assembly 66178
The Four Seasons Hose Assembly 66178 is designed specifically for Ram 2500, 3500, and 4000 models. This A/C refrigerant suction hose ensures reliable low-pressure refrigerant flow within your vehicle's HVAC system, maintaining optimal air conditioning performance.
- Constructed from durable aluminum and rubber materials
- Features a flange end and a P-nut fitting for secure connections
- Compatible with R134a refrigerant systems
- Includes necessary gaskets and fittings for installation
- Equipped with a 13 mm low-side service port for maintenance
- OE replacement part ensuring proper fit and function
Four Seasons Hose Assembly Product Line Details
The Hose Assembly product line by Four Seasons focuses on delivering precise HVAC hose and pipe components tailored for specific vehicle applications. The 66178 suction hose assembly is part of this line, engineered to meet original equipment specifications for refrigerant suction lines, providing dependable service without additional brackets or mufflers.
Detailed Product Description
This A/C refrigerant suction hose assembly combines aluminum and rubber to balance flexibility and durability, essential for handling low-pressure refrigerant flow in Ram trucks. The hose features a flange on one end and a P-nut fitting on the other, ensuring a secure and leak-free connection. It is designed for use with R134a refrigerant and includes both slimline and sealing washers (O-rings 24404 and 24355) to maintain system integrity. The assembly comes with a 13 mm low-side service port, facilitating easy access for system servicing without a switch port or muffler, and does not include a bracket, simplifying installation in compatible Ram models.
Common Applications and Issues Addressed
- Replacement of worn or damaged A/C refrigerant suction hoses in Ram 2500, 3500, and 4000
- Resolving refrigerant leaks caused by cracked or deteriorated hoses
- Restoring proper low-pressure refrigerant flow for efficient air conditioning
- Eliminating issues related to faulty or missing gaskets and seals
- Facilitating maintenance with an included service port for refrigerant charging and diagnostics
Installation Notes and Tips
- Ensure compatibility with Ram 2500, 3500, or 4000 models before installation
- Use the included slimline and sealing washers to prevent leaks at connection points
- Check that the flange and P-nut fittings are securely tightened to manufacturer torque specifications
- Inspect the service port for accessibility during installation to allow future maintenance
- Do not install if the hose shows any signs of damage or defects
Quality Assurance and Warranty
The Four Seasons Hose Assembly 66178 is an OE replacement part, manufactured to meet original equipment standards for fit, form, and function. It includes all necessary fittings and seals to ensure a reliable installation. While specific warranty details are not provided, Four Seasons products typically adhere to industry quality standards, offering dependable performance for HVAC system repairs in Ram trucks.
| Brand | Four Seasons |
| Part Number | 66178 |
| Position | Hose Assembly |
| Bracket? | w/o 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-Ring B Number/Desc | [24355] / Sealing Washer |
| O.E. Replacement? | Yes |
| Refrigerant Type | R134a |
| Service Port Qty | 1 |
| Service Port Size | 13 mm |
| Service Port? | w/ Service Port |
| Suction End Type | P-Nut Fitting |
| Sve Port Low Side | Low Side |
| Switch Included? | Not Included |
| System Pressure | Low Pressure |
This part fits 3 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2012 | Ram | 2500 | 6.7L | L6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2012 | Ram | 3500 | 6.7L | L6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2012 | Ram | 4000 | 6.7L | L6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; 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.