Quicksilver Mercruiser Oxygen Sensor 8M2003959 CMOR While this may not be

While this may not be our best looking fishing chart

Depths from 495' to 1

Fuse Rating:  3 x 20 A ATC Blade-Type (SAE J1171 Compliant)

Any marine growth on your transducer will negatively affect its performance

for optimum control and confidence

Quicksilver Mercruiser Oxygen Sensor 8M2003959 CMOR While this may not beThis Item Comes with FREE Shipping!!! The O2 sensor is mounted in the exhaust manifold to monitor how much unburned oxygen is in the exhaust as the exhaust exits the engine. Monitoring oxygen levels in the exhaust is a way of gauging the fuel mixture. It tells the computer if the fuel mixture is burning rich (less oxygen) or lean (more oxygen). Mfg. # 8M2003959