Four Seasons 66843 A/C Refrigerant Suction Hose

Overview of Four Seasons Hose Assembly 66843

The Four Seasons Hose Assembly 66843 is designed specifically for Toyota Tundra models requiring a reliable A/C refrigerant suction hose. Constructed with durable aluminum and rubber materials, this hose assembly ensures efficient refrigerant flow and system integrity for vehicles using R134-a refrigerant.

• Material: Aluminum and rubber construction for durability and flexibility
• End fittings: Both ends feature P-nut fittings for secure connections
• Refrigerant compatibility: Designed for R134-a refrigerant systems
• Includes gasket and fittings for proper sealing and installation
• Equipped with a 13 mm low side service port for maintenance access
• O-rings included: Two black O-rings (part number 24150) for leak prevention
• OE replacement part, ensuring compatibility and performance
• Does not include bracket, muffler, or switch

About the Four Seasons Hose Assembly Product Line

The Four Seasons Hose Assembly line focuses on providing complete hose assemblies tailored for HVAC systems in vehicles. This product line emphasizes compatibility with original equipment specifications, offering components such as suction lines with included fittings and seals. The 66843 hose assembly is part of this line, delivering a ready-to-install solution for Toyota Tundra A/C systems.

Detailed Product Description

This A/C refrigerant suction hose assembly is engineered to maintain optimal refrigerant flow within the Toyota Tundra's air conditioning system. The combination of aluminum and rubber materials balances strength and flexibility, reducing the risk of leaks or damage under typical operating conditions. Both ends utilize P-nut fittings, which are standard for secure and leak-resistant connections in automotive HVAC systems. The included gasket and two black O-rings ensure a tight seal, preventing refrigerant loss. Additionally, the hose features a 13 mm low side service port, facilitating system diagnostics and recharging without disassembly.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C refrigerant suction hoses in Toyota Tundra vehicles
• Resolving refrigerant leaks caused by cracked or deteriorated hose materials
• Restoring proper refrigerant flow to improve air conditioning performance
• Addressing issues related to faulty or missing seals and fittings
• Facilitating maintenance with an integrated low side service port

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66843, ensure all fittings and O-rings are properly seated to prevent leaks. Use the included gasket and verify that the P-nut fittings are tightened to manufacturer specifications. Since this assembly does not include a bracket or muffler, confirm that existing mounting hardware is intact and secure. The service port allows for convenient system servicing; however, avoid damaging the port during installation.

Quality Assurance and Warranty

This hose assembly is an OE replacement part, meeting original equipment standards for fit and function on Toyota Tundra models. 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 for automotive HVAC components.