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The Four Seasons 47671 is a new (not remanufactured) A/C compressor clutch assembly for GM Frigidaire/Harrison R4 radial compressors, the LTR4 setup used on many 1990-1993 GM cars and trucks. It pairs a steel hub and pulley with a 12-volt coil, a one-piece coil lead wire, press-fit mounting and a 6-groove serpentine pulley sized for a 0.875 in. belt. The clutch measures 5.000 in. (127 mm) across and turns in either direction. It suits owners repairing a failed clutch on a listed S10, Sonoma, Camaro, Firebird, Brougham or Commercial Chassis application rather than replacing the whole compressor. Against a full compressor, it is a narrower, application-specific part, so confirming the LTR4 compressor and 6-groove pulley before ordering matters more than brand comparisons.
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The Four Seasons 47671 is a new steel A/C compressor clutch assembly for GM-style Frigidaire/Harrison R4 radial compressors. It has a black finish and a 12-volt coil with a one-piece lead wire. It mounts with a press fit.
The pulley is a 6-groove serpentine design with a 0.875 in. belt width. The clutch has a maximum diameter of 5.000 in. (127 mm). It is made for applications with the LTR4 compressor, and it meets or exceeds OEM requirements.
Before installing, check the compressor style, pulley groove count, belt width and coil voltage. Confirm the vehicle uses the LTR4 compressor, and compare the existing clutch to the published measurements.
