Four Seasons 47633 A/C Compressor Clutch

Four Seasons 47633 A/C Compressor Clutch

Four Seasons 47633 is a new A/C compressor clutch assembly for GM-style Frigidaire/Harrison R4 radial applications. Built with a steel, black-finished press-fit design and a 12-volt coil, it is specified for serpentine belt systems and direct compressor clutch service on select Chevrolet, GMC, Pontiac, Buick, and Isuzu vehicles.

The Four Seasons New Clutch Assembly line focuses on replacement clutch components that match the original compressor setup. This 47633 clutch assembly uses a K-style pulley, 6-groove serpentine configuration, and a one-piece coil lead wire for service on R4/LTR4 compressor applications.

Key Features

• Brand: Four Seasons New Clutch Assembly
• Part number: 47633
• Steel construction with black finish
• Press-fit mounting type
• 12-volt coil with one-piece lead wire
• Serpentine belt setup, 0.875 in. belt width
• 6-groove pulley, 5.000 in. maximum clutch diameter
• Frigidaire/Harrison R4 radial style for GM applications
• Meets or exceeds OEM requirements

Detailed Description

Four Seasons 47633 is an A/C compressor clutch assembly for vehicles using LTR4 or R4 compressor configurations. It is engineered as a direct replacement clutch for select Chevrolet S10, Camaro, Corvette, S10 Blazer, Caprice, G30, GMC S15, S15 Jimmy, G3500, Sonoma, and Isuzu Pickup, Rodeo, and Trooper applications. This part number 47633 is also referenced under several aftermarket and OE cross numbers for the same application.

This clutch assembly is built around a steel hub and pulley design with a press-fit mount, 1.9375 in. distance from clutch to mounting flange, and CCW/CW rotation support. The 6-groove serpentine pulley and 12V coil configuration make it a practical replacement when restoring compressor engagement on GM and Isuzu vehicles from 1985-1992.

This part cross-references 158375N and 272633 for the same application.

Vehicle Fitment

• Fits 1992 Isuzu Pickup, N/A — w/ R4 Compressor; New; New Clutch Assembly
• Fits 1991-1992 Isuzu Rodeo, N/A — Fits A/C Compressor with LTR4, brand new; New Clutch Assembly
• Fits 1989-1992 Isuzu Trooper, N/A — Fits A/C Compressor with LTR4, brand new; New Clutch Assembly
• Fits 1988-1991 Chevrolet G30, N/A — Fits A/C Compressor with LTR4, brand new; New Clutch Assembly
• Fits 1987-1991 Chevrolet S10, N/A — Fits A/C Compressor with LTR4, brand new; New Clutch Assembly
• Fits 1988-1991 GMC G3500, N/A — Fits A/C Compressor with LTR4, brand new; New Clutch Assembly
• Fits 1991 GMC Sonoma, N/A — Fits A/C Compressor with LTR4, brand new; New Clutch Assembly
• Fits 1991 Isuzu Pickup, N/A — Fits A/C Compressor with LTR4, brand new; New Clutch Assembly
• Fits 1989-1990 Chevrolet Caprice, N/A — Fits A/C Compressor with LTR4, brand new; New Clutch Assembly
• Fits 1987-1990 GMC S15, N/A — Fits A/C Compressor with LTR4, brand new; New Clutch Assembly
• Fits 1987-1989 Chevrolet Camaro, N/A — Fits A/C Compressor with LTR4, brand new; New Clutch Assembly
• Fits 1987-1989 Chevrolet S10 Blazer, N/A — Fits A/C Compressor with LTR4, brand new; New Clutch Assembly
• Fits 1987-1989 GMC S15 Jimmy, N/A — Fits A/C Compressor with LTR4, brand new; New Clutch Assembly
• Fits 1988-1989 Pontiac Firebird, N/A — Fits A/C Compressor with LTR4, brand new; New Clutch Assembly
• Fits 1989 Pontiac Firebird, N/A — w/ LTR4 Compressor; New; Spade Coil; New Clutch Assembly
• Fits 1986-1987 Buick Regal, N/A — w/ R4 Compressor; New; New Clutch Assembly
• Fits 1985-1987 Chevrolet Corvette, N/A — w/ LTR4 Compressor; New; Short Shaft; New Clutch Assembly
• Fits 1987 Pontiac Firebird, N/A — w/ LTR4 Compressor; New; 12 O'Clk Coil; New Clutch Assembly

Common Problems This Part Can Address

• A/C compressor clutch not engaging
• Intermittent compressor operation
• Worn or damaged pulley and hub surfaces
• Noise from a failing clutch assembly
• Loss of belt-driven compressor engagement on R4/LTR4 systems

Installation Notes

Verify compressor style, pulley groove count, belt width, and coil configuration before installation. This Four Seasons 47633 clutch assembly is a press-fit design for serpentine belt applications, so compressor shaft condition and alignment should be checked carefully during service. Confirm the vehicle uses an R4 or LTR4 compressor and match the existing clutch style, including coil orientation where noted in fitment.

Quality Assurance

Four Seasons lists this clutch assembly as meeting or exceeding OEM requirements. The New Clutch Assembly line is built for direct replacement service on specified GM and Isuzu A/C compressor applications.