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Quicksilver 8M2003959 Oxygen Sensor
| Sensor Type | Heated Zirconia Oxygen Sensor |
| Wire Configuration | 4-Wire |
| Operating Voltage | 12V |
| Thread Size | M18 x 1.5 |
| Connector Type | OEM Marine Connector |
| Housing Material | Stainless Steel |
| Operating Temperature Range | -40°C to 900°C |
| Response Time | < 150 ms |
Manufacturer No.
8M2003959
OEM Part No.
8M2003959710-8M20039597108M2003959
Engine Part No.
Mercury MerCruiser 3.0L ECMercury MerCruiser 4.3L ECMercury MerCruiser 4.5L ECMercury MerCruiser 5.0L ECMercury MerCruiser 5.7L ECMercury MerCruiser 6.2L ECMercury MerCruiser 8.1L ECMercury MerCruiser 8.2L ECMercury MerCruiser 350 MAG ECMercury MerCruiser 377 MAG EC
Interchange No.
38837240258006956
Fitment Vehicles
Mercury MerCruiser EC SterndriveMercury MerCruiser EC InboardVolvo Penta Marine Gasoline Engines
Electrical And Electronic Systems - Industrial Encyclopedia
OEM exhaust oxygen sensor 8M2003959 for Mercury MerCruiser EC sterndrive engines, 4-wire heated design for precise air-fuel ratio monitoring in marine gasoline applications.