S4156 BWD Oil Pressure Switch v421144-v665235-v416113-v421143-v421142-v421133-v421132-v421112-v421109-v421027-v421013-v419728-v419727-v419726-v419300-v419298-v418444-v418443-v418340-v418337-v418335-v418222-v418217-v417868-v417865 1982 Chevrolet Bel Air 1981

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S4156 BWD Oil Pressure Switch v421144-v665235-v416113-v421143-v421142-v421133-v421132-v421112-v421109-v421027-v421013-v419728-v419727-v419726-v419300-v419298-v418444-v418443-v418340-v418337-v418335-v418222-v418217-v417868-v417865 1982 Chevrolet Bel Air 1981BWD 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