Universal Air RS2551 A/C System Seal Kit

Rapid Seal A/C O-Ring Kit for GM HVAC Service

The Universal Air Rapid Seal O-ring Kit RS2551 is an A/C system seal kit for servicing HVAC connections on a wide range of Chevrolet, GMC, and Oldsmobile vehicles. It is built for applications that need reliable sealing at A/C line joints, including many trucks, SUVs, and vans from 1973-1991.

Key Features

• Universal Air Rapid Seal Oring Kit for automotive A/C system sealing
• Fits many Chevrolet Blazer, C/K truck, Suburban, and van applications
• Also listed for GMC Jimmy, Sonoma, S-series, and full-size truck platforms
• Supports rear A/C applications on select Suburban and Blazer models
• Part number RS2551 for catalog and service identification

Detailed Description

RS2551 is a Rapid Seal Oring Kit from Universal Air for HVAC gasket and sealing service. It is listed across a broad range of GM platforms, including Chevrolet C10, K5 Blazer, P30, S10, and GMC C1500, K2500, Jimmy, and Sonoma applications. For technicians searching for a Chevrolet Blazer A/C O-ring kit, GMC Jimmy HVAC seal kit, or GM rear A/C seal kit, this part number provides a direct fitment reference for many 1973-1991 vehicles.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Problems It Helps Address

• A/C refrigerant leaks at hose and line connections
• Loss of cooling performance from worn sealing rings
• Service issues during HVAC component replacement
• Leak points on rear A/C-equipped Suburban and Blazer models
• Seal deterioration on older GM truck and van systems

Installation Notes and Tips

Confirm the vehicle year, make, and model against the fitment list before service. Inspect mating surfaces, line ends, and grooves for wear or contamination before installing new seals. Use proper A/C service procedures and verify system integrity after reassembly. Fits 1987-1991 Chevrolet Blazer, N/A; Fits 1977-1991 Chevrolet P30, N/A; Fits 1987-1991 GMC Jimmy, N/A; Fits 1991 GMC Sonoma, N/A.

Quality Assurance

Universal Air identifies RS2551 as part of its Rapid Seal Oring Kit line for HVAC sealing applications. The product is cataloged for broad GM fitment coverage across 1973-1991 Chevrolet, GMC, and Oldsmobile vehicles.