Four Seasons 47622 A/C Compressor Clutch

Four Seasons 47622 A/C Compressor Clutch

The Four Seasons New Clutch Assembly 47622 is a steel, black A/C compressor clutch built for GM applications using the Frigidaire/Harrison R4 radial compressor style. It includes a 12-volt coil, press-fit mounting, and a 6-groove serpentine pulley for direct-fit service on many Chevrolet, GMC, and Oldsmobile vehicles.

Compatible With Chevrolet Blazer, C1500, K1500, S10, Astro, and GMC Jimmy, Sonoma, Safari, and related GM trucks and vans from 1984-1991. This part number 47622 is also a direct replacement for common cross-reference numbers used in the same application.

Key Features

• Steel clutch assembly with black finish
• 4.250-inch maximum clutch diameter, 108 mm primary clutch diameter
• 6-groove pulley for 0.875-inch serpentine belt width
• 12-volt coil with one-piece coil lead wire
• Press-fit mounting type
• Clockwise/counterclockwise rotation support
• Meets or exceeds OEM requirements
• GM Type, Frigidaire/Harrison R4 radial style

Product Details

Four Seasons New Clutch Assembly line focuses on replacement A/C clutch components for service work where the compressor clutch is the failed wear item. Part number 47622 is specified for GM vehicles using the LTR4 or R4 compressor family, including Chevrolet C1500 and GMC K2500 truck applications, as well as Chevrolet Blazer and GMC Jimmy SUV fitments. The press-fit design and coil-included configuration support a straightforward compressor-clutch replacement on the correct R4 setup.

This part cross-references Monroe Shocks & Struts (e.g., 158285N, 272622) for the same application.

Common Problems This Part Addresses

• A/C compressor clutch not engaging
• Intermittent compressor operation
• Noise from a worn clutch bearing or pulley
• Slipping clutch engagement under load
• Poor cooling caused by clutch failure on GM R4 systems

Installation Notes and Tips

Verify compressor style before ordering: this clutch assembly is for GM Frigidaire/Harrison R4 radial applications and related LTR4 compressor fitments. Confirm pulley groove count, belt width, and 12-volt coil requirements against the original unit. Check for the presence or absence of an inertia ring where noted in the fitment data, and match the vehicle-specific compressor configuration before installation.

Fits 1984 Chevrolet Corvette, N/A; Fits 1987-1989 Chevrolet Astro, N/A; Fits 1988-1991 Chevrolet C1500, N/A; Fits 1988-1991 GMC K1500, N/A; Fits 1989-1991 GMC Jimmy, N/A; Fits 1991 Oldsmobile Bravada, N/A.

Quality Assurance

Four Seasons lists this clutch assembly as meeting or exceeding OEM requirements. The part is built as a new replacement component for GM A/C compressor service and is intended for applications calling for the specified R4-style clutch assembly.