Four Seasons 2545NK A/C Compressor and Component Kit - Front

Complete A/C Kit for Classic GM Trucks and SUVs

Restore cabin cooling with the Four Seasons Complete A/C Kit 2545NK. This complete air conditioning kit includes a new compressor, accumulator, orifice tube, PAG oil, and O-rings for a direct-service HVAC repair on select Chevrolet and GMC applications.

Built for R134a systems, this Four Seasons Complete A/C Kit is a practical solution for front A/C repairs on 1985-1991 Chevrolet Blazer, GMC Jimmy, Suburban, and select C/K and R/V Series trucks. The kit is centered around a new compressor and the matched components needed for a proper system refresh.

Key Features

• Four Seasons Complete A/C Kit, part number 2545NK
• Includes a new compressor, accumulator, orifice tube, PAG oil, and O-rings
• Uses PAG Oil /150 compressor oil
• Designed for R134a refrigerant systems
• Orifice tube style: standard, white, 0.072 in. diameter
• Receiver drier/accumulator with female O-ring inlet and male insert O-ring outlet
• Limited lifetime warranty

Product Details

The Four Seasons Complete A/C Kit 2545NK is a complete air conditioning kit with a new compressor for vehicles that use an LTR4 compressor setup and a 5-inch pulley on select 1989-1991 applications, plus earlier 1985-1988 and 1987-1988 configurations listed in the fitment data. The included accumulator and orifice tube help match the replacement components to the system layout, while the supplied PAG oil and O-rings support a full A/C service. This kit is a strong fit for buyers searching for a Chevrolet Blazer A/C compressor kit, GMC Jimmy compressor replacement, or a classic GM truck A/C repair kit.

This part cross-references Four Seasons 2545NK for the same application.

Common Problems This Kit Addresses

• Weak or inconsistent cooling from a worn compressor
• Noisy compressor operation or compressor seizure
• Restricted refrigerant flow through a worn orifice tube
• Moisture or contamination issues in the accumulator
• Leaks at aged A/C seals and O-rings

Installation Notes and Tips

Before installation, verify compressor style, pulley diameter, coil position, and system configuration against the vehicle notes. Replace the accumulator and orifice tube during service, evacuate the system, and recharge with the correct R134a refrigerant and specified PAG oil amount for the application. Confirm all O-ring sealing surfaces are clean before assembly.

Compatible With 1985-1991 Chevrolet Blazer, front; 1985-1988 Chevrolet C20 Suburban, front; 1985-1988 Chevrolet K5 Blazer, front; 1985-1986 GMC C1500 Suburban, front; and other listed Chevrolet and GMC C/K, R/V, and Suburban applications. For shoppers comparing a Chevrolet Blazer A/C compressor kit or GMC Jimmy A/C compressor kit, part number 2545NK matches the listed fitments.

Quality Assurance

Four Seasons backs this kit with a limited lifetime warranty. The Complete A/C Kit line is built to simplify major air conditioning service by combining the compressor and matched replacement components in one package.