60976 101613A Oil Pressure Sender Switch for Oliver Tractor 550 770 880 1550 ++One New Aftermarket Replacement Oil Pressure Sender Switch for Oliver and White Tractors This aftermarket replacement oil pressure sender switch monitors engine oil pressure and signals the dashboard warning indicator when pressure drops to an unsafe level. Threaded directly into the engine block, it is a critical component for protecting your Oliver (Oliver) or White tractor engine from low pressure damage. This switch features a single terminal