OE Quality
60-Day Returns

Four Seasons 66547 A/C Refrigerant Suction Hose
Overview of Four Seasons Hose Assembly 66547
The Four Seasons Hose Assembly 66547 is designed specifically for the HVAC system of select Ford and Lincoln vehicles. This A/C refrigerant suction hose ensures reliable low-pressure refrigerant flow, compatible with R134a systems in models like the Ford Flex, Lincoln MKS, MKT, and Taurus.
- Constructed from durable aluminum and rubber materials
- Equipped with P-nut fittings on both ends for secure connections
- Includes gasket and fittings for proper sealing and installation
- Designed for low-pressure suction line applications with R134a refrigerant
- Features a 13 mm service port for maintenance access
- OE replacement part ensuring direct fit and function
Four Seasons Hose Assembly Product Line Details
The Four Seasons Hose Assembly product line focuses on delivering precise HVAC hose solutions tailored to specific vehicle applications. This line emphasizes quality materials and exact fitment, providing components like the 66547 suction hose that meet original equipment specifications for Ford and Lincoln models. The assemblies are engineered to maintain system integrity without additional brackets or mufflers, streamlining installation and service.
Detailed Product Description
The 66547 suction hose assembly is constructed from a combination of aluminum and rubber, offering durability and flexibility required for HVAC refrigerant lines. Both ends feature P-nut fittings, facilitating a secure and leak-resistant connection to the vehicle’s A/C system. This hose is designed for use with R134a refrigerant and operates under low system pressure, making it suitable for the suction side of the A/C cycle. Included with the hose are two tear drop sealing washers (O-Rings #24243) and necessary fittings, ensuring a complete installation package. The assembly also includes a service port sized at 13 mm, allowing for easy system servicing without the need for additional components like brackets or mufflers.
Applications and Common Issues Addressed
- Replacement of worn or damaged A/C refrigerant suction hoses in Ford Flex, Lincoln MKS, MKT, and Taurus
- Resolving refrigerant leaks caused by cracked or deteriorated hose materials
- Restoring proper low-pressure refrigerant flow for efficient A/C system operation
- Eliminating connection failures due to faulty or missing fittings and seals
- Facilitating maintenance with an integrated service port for refrigerant charging and diagnostics
Installation Notes and Tips
When installing the Four Seasons Hose Assembly 66547, ensure all fittings and sealing washers are properly seated to prevent leaks. The P-nut fittings require careful tightening to manufacturer torque specifications. Since this assembly does not include a bracket or muffler, verify existing mounting points and supports are intact and secure the hose accordingly. The included service port allows for convenient refrigerant servicing; however, confirm compatibility with your service equipment before use.
Quality Assurance and Warranty
This Four Seasons Hose Assembly is an OE replacement part, manufactured to meet or exceed original equipment standards for fit and function. The product 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. Refer to the manufacturer’s warranty documentation for complete terms.
| Brand | Four Seasons |
| Part Number | 66547 |
| Position | Hose Assembly |
| Bracket? | w/o Bracket |
| Component Type | Suction Line |
| Description | Hose Assemblies |
| End 1 Type | P-Nut Fitting |
| 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 | [24243] / Tear Drop 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 27 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2019 | Ford | Flex | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2019 | Ford | Taurus | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2019 | Lincoln | MKT | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2018 | Ford | Flex | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2018 | Ford | Taurus | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2018 | Lincoln | MKT | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2017 | Ford | Flex | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2017 | Ford | Taurus | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2017 | Lincoln | MKT | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2016 | Ford | Flex | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2016 | Ford | Taurus | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2016 | Lincoln | MKS | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2016 | Lincoln | MKT | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2015 | Ford | Flex | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2015 | Ford | Taurus | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2015 | Lincoln | MKS | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2015 | Lincoln | MKT | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2014 | Ford | Flex | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2014 | Ford | Taurus | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2014 | Lincoln | MKS | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2014 | Lincoln | MKT | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2014 | Lincoln | MKT | 2.0L | L4 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2013 | Ford | Flex | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2013 | Ford | Taurus | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2013 | Lincoln | MKS | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2013 | Lincoln | MKT | 3.5L | V6 | N/A | A/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly |
| 2013 | Lincoln | MKT | 2.0L | L4 | 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.