Four Seasons 63181 A/C Refrigerant Discharge Hose

Four Seasons 63181 A/C Discharge Hose

The Four Seasons 63181 A/C refrigerant discharge hose is built for Toyota truck and SUV applications that use R1234YF refrigerant. It combines aluminum and rubber construction with an included gasket or seal and an integrated muffler for a direct-fit HVAC hose assembly.

Four Seasons Hose Assembly products are backed by more than 50 years of mobile A/C experience and are engineered and tested for dependable operation. This Four Seasons 63181 hose assembly is a practical replacement for a worn or leaking discharge line on the Toyota Sequoia and Toyota Tundra.

Key Features

• Part number 63181 A/C refrigerant discharge hose
• Compatible with R1234YF refrigerant systems
• Aluminum / rubber hose construction
• Gasket or seal included
• Built with a muffler for discharge-line service
• No service port included
• No switch service port

Product Details

This hose assembly is designed for the discharge side of the air conditioning system, where refrigerant leaves the compressor under high pressure. The aluminum and rubber design supports routing and vibration control, while the included seal helps complete the connection at the service point. Four Seasons 63181 is a direct replacement-style part for Toyota Sequoia and Toyota Tundra HVAC service where the original discharge line has failed or is no longer sealing properly.

This part cross-references 212875 and 887110C200 for the same application.

Vehicle Fitment

• Fits 2023-2025 Toyota Sequoia, discharge line; hose assembly
• Fits 2022-2025 Toyota Tundra, discharge line; hose assembly

Common Replacement Reasons

• Refrigerant loss from a cracked or leaking discharge hose
• Damaged hose fittings or deteriorated sealing surfaces
• Noise or vibration at the A/C discharge line
• Corrosion or wear in the original hose assembly
• Failed HVAC performance caused by line leakage

Installation Notes

Verify refrigerant type before installation; this hose is specified for R1234YF systems. Inspect mating surfaces, replace the seal as needed, and confirm the line routing matches the original discharge hose layout on the vehicle. Evacuate and recharge the system according to factory service procedures after installation.

Quality Assurance

Four Seasons engineers and tests its HVAC hose assemblies for long service life and consistent operation. The brand draws on more than 50 years of mobile air conditioning experience, and part 63181 is built to support proper discharge-line service on Toyota Sequoia and Toyota Tundra applications.