Mercury Monarch Oxygen Sensor
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App: 1975-1980 Mercury Monarch
Brand: Replacement
Part #: USOS-4000
Notes: "UNIVERSAL OXYGEN SENSOR -- 4 Wires, Quality Construction And Materials Make This Item One Of The Top Selling OE Replacement Oxygen Sensors. This May Require Modification Or Other Adjustments To Your Vehicle Upon Installation, Direct Fit Part "
| Make | Model | Year Range | Chassis/Engine |
| Mercury | Monarch | 1975 - 1977 | 6Cyl 3.3L |
| Mercury | Monarch | 1975 - 1977 | 8Cyl 5.8L |
| Mercury | Monarch | 1975 - 1980 | 6Cyl 4.1L |
| Mercury | Monarch | 1975 - 1980 | 8Cyl 5.0L |
| Mercury | Monarch | 1980 | 8Cyl 4.2L |
App: 1975-1980 Mercury Monarch
Brand: Replacement
Part #: USOS-3000
Notes: "UNIVERSAL OXYGEN SENSOR -- 3 Wires, Quality Construction And Materials Make This Item One Of The Top Selling OE Replacement Oxygen Sensors. This May Require Modification Or Other Adjustments To Your Vehicle Upon Installation, Direct Fit Part "
| Make | Model | Year Range | Chassis/Engine |
| Mercury | Monarch | 1975 - 1977 | 6Cyl 3.3L |
| Mercury | Monarch | 1975 - 1977 | 8Cyl 5.8L |
| Mercury | Monarch | 1975 - 1980 | 6Cyl 4.1L |
| Mercury | Monarch | 1975 - 1980 | 8Cyl 5.0L |
| Mercury | Monarch | 1980 | 8Cyl 4.2L |
App: 1975-1980 Mercury Monarch
Brand: Replacement
Part #: USOS-1000
Notes: "UNIVERSAL OXYGEN SENSOR -- 1 Wire, Quality Construction And Materials Make This Item One Of The Top Selling OE Replacement Oxygen Sensors. This May Require Modification Or Other Adjustments To Your Vehicle Upon Installation, Direct Fit Part "
| Make | Model | Year Range | Chassis/Engine |
| Mercury | Monarch | 1975 - 1977 | 6Cyl 3.3L |
| Mercury | Monarch | 1975 - 1977 | 8Cyl 5.8L |
| Mercury | Monarch | 1975 - 1980 | 6Cyl 4.1L |
| Mercury | Monarch | 1975 - 1980 | 8Cyl 5.0L |
| Mercury | Monarch | 1980 | 8Cyl 4.2L |
App: 1975-1980 Mercury Monarch
Brand: Replacement
Part #: USOS-2000
Notes: "UNIVERSAL OXYGEN SENSOR -- 2 Wires, Quality Construction And Materials Make This Item One Of The Top Selling OE Replacement Oxygen Sensors. This May Require Modification Or Other Adjustments To Your Vehicle Upon Installation, Direct Fit Part "
| Make | Model | Year Range | Chassis/Engine |
| Mercury | Monarch | 1975 - 1977 | 6Cyl 3.3L |
| Mercury | Monarch | 1975 - 1977 | 8Cyl 5.8L |
| Mercury | Monarch | 1975 - 1980 | 6Cyl 4.1L |
| Mercury | Monarch | 1975 - 1980 | 8Cyl 5.0L |
| Mercury | Monarch | 1980 | 8Cyl 4.2L |
App: 1978-1980 Mercury Monarch
Brand: Standard
Part #: SG447
Notes: STANDARD OXYGEN SENSOR -- A High-Quality, Direct Fit OEM Replacement Oxygen Sensor
| Make | Model | Year Range | Chassis/Engine |
| Mercury | Monarch | 1978 - 1980 | 6Cyl 4.1L Base |
| Mercury | Monarch | 1978 - 1980 | 8Cyl 5.0L Base |
| Mercury | Monarch | 1980 | 8Cyl 4.2L Base |
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| Oxygen Sensor | Radiator | Shock Absorber |
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