Four Seasons 66174 A/C Refrigerant Suction Hose

Overview of Four Seasons Hose Assembly 66174

The Four Seasons Hose Assembly 66174 is designed specifically for Jeep Commander and Grand Cherokee 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 end for secure connections
• Compatible with R134a refrigerant systems
• Includes sealing washers and fittings for proper installation
• Equipped with a 13 mm low-side service port for maintenance access

Detailed Product Description

The Four Seasons Hose Assembly 66174 belongs to the Hose Assembly product line, which focuses on delivering precise and reliable hose and pipe components for automotive HVAC systems. This line emphasizes quality materials and exact fitment to meet original equipment specifications. The 66174 suction hose is constructed from a combination of aluminum and rubber, providing both flexibility and durability under low-pressure conditions. It features a flange on one end and a P-nut fitting on the other, ensuring a secure and leak-free connection within the A/C system. The hose is designed for use with R134a refrigerant and includes essential components such as sealing washers (O-Ring A: 24255 sealing washer, O-Ring B: 24404 slimline washer) and fittings to facilitate proper installation. Additionally, the hose assembly comes with a 13 mm service port on the low-pressure side, allowing for convenient system servicing without the need for additional modifications.

Applications and Common Issues Addressed

• Replacement of worn or damaged A/C refrigerant suction hoses in Jeep Commander and Grand Cherokee vehicles
• Resolving refrigerant leaks caused by cracked or deteriorated hoses
• Restoring proper refrigerant flow to improve air conditioning efficiency
• Addressing low-pressure system failures related to faulty suction lines
• Facilitating maintenance with an integrated service port for easy refrigerant charging and diagnostics

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66174, ensure that all included sealing washers and fittings are properly seated to prevent leaks. The hose is designed to replace the original equipment suction line directly, so no modifications should be necessary. Use appropriate tools to tighten the flange and P-nut fittings to manufacturer torque specifications. Since this hose does not include a bracket or muffler, verify that existing mounting points and supports are intact and secure. The integrated 13 mm service port allows for straightforward access during system servicing.

Quality Assurance and Warranty

Four Seasons manufactures the 66174 hose assembly to meet or exceed original equipment standards, ensuring compatibility and durability for Jeep Commander and Grand Cherokee HVAC systems. This part is an exact OE replacement, providing confidence in fit and function. The product includes all necessary seals and fittings to support a reliable installation. Warranty details are provided by Four Seasons and typically cover defects in materials and workmanship under normal use conditions.