Four Seasons 26000 A/C System O-Ring and Gasket Kit

AC System Seal Kit for Nissan and INFINITI

Restore sealing integrity in the air conditioning system with the Four Seasons AC System Seal Kit, part number 26000. This O-ring and gasket kit is built for service work on a wide range of Nissan and INFINITI vehicles, including Nissan Rogue, Altima, Murano, Frontier, and INFINITI Q50 applications.

Four Seasons AC System Seal Kits are engineered and tested for dependable operation, drawing on more than 50 years of mobile A/C experience. If you are replacing A/C components or addressing refrigerant leaks, this kit provides the sealing parts needed for a proper repair.

Key Features

• O-ring and gasket A/C system seal kit for HVAC service
• Four Seasons part number 26000
• Built for Nissan and INFINITI air conditioning system repairs
• Supports leak repair at common A/C connection points
• Cross-references UAC RS2572 for the same application

Detailed Product Information

This Four Seasons AC System Seal Kit is intended for technicians and do-it-yourself repairs where A/C seals need to be renewed during component replacement or leak diagnosis. The kit is listed as an O-ring and gasket style seal kit and is used across many late-model Nissan and INFINITI platforms, including Nissan LEAF, Sentra, Maxima, Pathfinder, Titan, and INFINITI QX60, QX80, and Q60. Part number 26000 is a direct reference for buyers searching by OE-style service part number.

Compatible vehicle coverage includes 2011-2023 Nissan LEAF, 2014-2023 Nissan Murano, 2014-2023 Nissan Versa, 2014-2023 INFINITI Q50, and 2014-2023 INFINITI QX60, along with many additional Nissan and INFINITI models listed in the fitment data. This makes it a practical choice when searching for an A/C system seal kit for Nissan Rogue, Nissan Altima, or INFINITI QX50 service work.

Common Problems This Kit Can Help Address

• Refrigerant leaks at A/C line and component connections
• Damaged, flattened, or hardened O-rings during A/C service
• Seal replacement needs after compressor, condenser, or line work
• Loss of system pressure caused by worn gaskets or seals
• Repeated A/C service failures from reusing old sealing components

Installation Notes and Tips

Inspect all sealing surfaces before installation and replace any damaged fittings or corroded connection points. Clean mating surfaces thoroughly, use the correct refrigerant oil on new seals where required by service procedure, and verify proper torque on A/C connections. After installation, evacuate and recharge the system according to factory service specifications and check for leaks before returning the vehicle to service.

Quality Assurance

Four Seasons engineers and tests its products for long service life and dependable operation. Backed by more than 50 years of mobile A/C experience, this seal kit is built for service professionals who want a reliable repair the first time.