Temperature Sending Unit, 1961-74 Oldsmobile, 1961-64 Buick Temperature sending unit, 1961-74 Oldsmobile F-85, Cutlass, and 442 without gauges, 1966-74 Toronado, and 1971-74 88 and 98 without gauges. Also used on 1961-64 Buicks with V6 and 300 V8 engines without a gauge.