Nissan Fairlady/300ZX Z32 Air Conditioning O-Ring Seal (12mm Diameter)

Terra Firma Automotive supplies genuine Nissan A/C system components that ensure your Z32 Fairlady or 300ZX maintains factory-correct sealing and cooling performance. This 12mm diameter O-ring seal is the exact OEM replacement engineered for critical refrigerant line connections throughout the air conditioning system on these iconic sports cars. Precision-manufactured from high-quality elastomer material specified by Nissan, it delivers reliable compression, chemical resistance to refrigerant and oil, and long-term elasticity that prevents leaks even under engine bay heat, vibration, and pressure cycles.

Z32 owners restoring or servicing their A/C systems know that degraded or missing O-rings are a primary cause of refrigerant loss, weak cooling, and compressor damage. Replacing with this authentic seal restores airtight connections that support efficient operation and maximum cabin comfort during hot weather drives or spirited runs. Its exact dimensions and material formulation ensure a perfect fit without the sealing failures common in generic aftermarket substitutes, making it essential for full system rebuilds, conversions from R12 to R134a, or targeted repairs.

At Terra Firma Automotive, we are the trusted premium source for hard-to-find OEM seals and A/C parts that enthusiasts rely on for dependable results. Whether you are refreshing the entire system on your twin-turbo, addressing leaks on a naturally aspirated model, or completing a detailed engine bay restoration, this O-ring upholds the precise engineering standards that define the 1989–1996 Fairlady Z and 1990–1996 300ZX.

• 1 Required
• Fits 27644EC Location
• Genuine Nissan OEM 12mm A/C line O-ring seal (92472-N823A)
• Direct replacement for refrigerant line connections on all Z32 models
• High-quality material resists refrigerant, oil, heat, and pressure
• Essential for leak-free A/C performance and system longevity
• Ideal for full A/C rebuilds, retrofits, or preventive maintenance
• Sold individually – order the quantity required for your service
• USDM 300ZX (Z32): 1990–1996 (VG30DE & VG30DETT – NA or TT)
• JDM Fairlady Z (Z32): 1989–1996 (VG30DE & VG30DETT – NA or TT)
  
• Note: 12mm diameter A/C line O-ring seal (genuine Nissan refrigerant seal)