S4130 BWD Oil Pressure Switch v379387-v379386-v379385-v379384-v379383-v378156-v378155-v376495-v376493-v376491-v376490-v376489-v376488-v376487-v376486-v376485-v376484-v376483-v376482-v376481-v376480-v376479-v379388-v314633-v314632 1991 Chevrolet R20 1987 Chevrolet

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S4130 BWD Oil Pressure Switch v379387-v379386-v379385-v379384-v379383-v378156-v378155-v376495-v376493-v376491-v376490-v376489-v376488-v376487-v376486-v376485-v376484-v376483-v376482-v376481-v376480-v376479-v379388-v314633-v314632 1991 Chevrolet R20 1987 ChevroletBWD Oil Pressure Switch is laser etched to calibrate switch's thick film printed circuits, which ensures highly accurate reading of actual oil pressure in vehicles engine High temperature, polyimide film diaphragms provide exceptional cycle durability and resist rupture and oil leakage Undergoes 1% testing using automated equipment that activates the switch and checks for leaks and stresses to ensure specification compliance, even under the most