2.0 LITER. A seal that prevents oil from leaking out, or contaminants from entering the Crankshaft Position Sensor. Engine Crankshaft Position Sensor Seal. CRANKSHAFT sensor o - ring. CRANKSHAFT sensor seal. Engine Crankshaft Position Sensor O - Ring. Engine Crankshaft Position Sensor Seal. Speed sensor o - ring. WASHER. Included with: Crankshaft sensor, Speed sensor.