Four Seasons 36958 Engine Cooling Fan Clutch

Four Seasons 36958 Fan Clutch Overview

Four Seasons 36958 is a standard-duty engine cooling fan clutch built for thermal operation and standard rotation applications. It is a new, non-electronic aluminum fan clutch that meets or exceeds OEM requirements and is performance rated for dependable cooling control in a wide range of classic GM, Chrysler, Dodge, and Jeep applications.

Use this Four Seasons Fan Clutch line component when you need a direct-fit replacement for vehicles such as Chevrolet C10, Pontiac Firebird, and Cadillac DeVille applications that call for a standard rotation thermal fan clutch. The Four Seasons 36958 is also cross-referenced to several OE-style replacement numbers for the same application.

Key Features

• Brand: Four Seasons Fan Clutch
• Part number: 36958
• Standard-duty thermal fan clutch design
• Non-electronic construction
• Aluminum body with raw aluminum finish
• Standard rotation (STD)
• Flange mounting type with 4 bolt holes
• Meets or exceeds OEM specifications
• Performance rated for cooling system service
• New replacement part

Product Details

This engine cooling fan clutch uses a thermal design to help regulate fan engagement based on operating temperature. With a 7.2-inch maximum diameter, 3.59-inch overall height, 2.03-inch clutch-to-mounting-flange distance, and a 3.25-inch fan bolt circle, it is built for applications that require a standard-duty, standard-rotation fan clutch with a 5/16-18 hole thread pattern. The aluminum construction and flange mount support a precise fit in many older truck and passenger car cooling systems.

Four Seasons 36958 is a practical replacement for vehicles across the 1959-1990 model years, including long-tail search applications such as standard rotation thermal fan clutch for 1980 Chevrolet Caprice, thermal engine cooling fan clutch for 1977 Pontiac Firebird, and standard-duty fan clutch for 1982 Cadillac DeVille. It also serves classic truck and SUV platforms including Chevrolet C10, GMC K2500, and Jeep Cherokee where the listed fitment calls for this configuration.

This part cross-references Gates 22043 and Dorman - HELP 47231 for the same application.

Common Cooling Problems It Can Address

• Fan clutch that no longer engages at the proper temperature
• Cooling fan noise caused by a worn clutch mechanism
• Reduced airflow at idle or low vehicle speed
• Overheating concerns in stop-and-go driving
• Cooling system performance loss on standard-rotation applications

Installation Notes and Fitment

Fits 1987-1990 Cadillac Brougham, N/A. Fits 1989 Dodge Dakota, N/A. Fits 1987-1988 Chevrolet R20, N/A. Fits 1987-1988 Chevrolet R30, N/A. Fits 1987-1988 Chevrolet V30, N/A. Fits 1987-1988 GMC R2500, N/A. Fits 1987-1988 GMC R3500, N/A. Fits 1987-1988 GMC V3500, N/A. Fits 1975-1987 Buick Regal, N/A. Fits 1983-1987 Chevrolet C35, N/A. Fits 1976-1987 Chevrolet Monte Carlo, N/A. Fits 1987 Chevrolet V20, N/A. Fits 1987 GMC V2500, N/A. Fits 1985-1987 Oldsmobile Cutlass Salon, N/A. Fits 1978-1980 Oldsmobile Cutlass Salon, N/A. Fits 1977-1987 Oldsmobile Cutlass Supreme, N/A. Fits 1977-1987 Pontiac Bonneville, N/A. Fits 1982-1986 Cadillac DeVille, N/A. Fits 1982-1986 Cadillac Fleetwood, N/A. Fits 1982-1986 Chevrolet C15, N/A. Fits 1980-1986 Chevrolet C20, N/A. Fits 1978 Chevrolet C20, N/A. Fits 1978-1986 Chevrolet C30, N/A. Fits 1978-1986 Chevrolet K20, N/A. Fits 1978-1986 Chevrolet K30, N/A. Fits 1980-1986 GMC C2500, N/A. Fits 1979-1986 GMC C3500, N/A. Fits 1979-1986 GMC K2500, N/A. Fits 1979-1986 GMC K3500, N/A.

Before installation, verify the fan bolt circle, mounting flange dimensions, rotation direction, and pilot measurements against the original part. Mounting hardware is not included, so reuse or source the correct hardware for the vehicle application. Confirm that the vehicle uses a standard rotation thermal fan clutch and that the cooling fan assembly matches the listed flange and bolt pattern.

Quality Assurance

Four Seasons manufactures this fan clutch as a new replacement part that meets or exceeds OEM requirements and is performance rated for cooling system service. The aluminum construction and standard-duty thermal design support consistent operation in the listed applications, including Chevrolet, GMC, Cadillac, Buick, Pontiac, Dodge, Plymouth, and Jeep fitments.