How to Service the Oil Pressure Switch on Mercury Mountaineer?

The maintenance of the oil pressure switch requires removing the battery ground cable as a first step. Begin the oil pressure switch service by first removing the switch after disconnecting its electrical connector. The threads of the new oil pressure switch must receive a coating of Pipe Sealant with Teflon D8AZ-19554-A or Wsk-M2G350-A2 prior to installation. The installation ends by performing the procedure in reverse order.

OEM Mercury Mountaineer Oil Pressure Switch

Oil Pressure Sender Switch

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3 Oil Pressure Switches found

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Mercury Mountaineer Oil Pressure Sending Unit Part Number: D4AZ-9278-A
$45.08 MSRP: $72.73
You Save: $27.65 (39%)
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Product Specifications
- Other Name: Switch Assembly - Oil Pressure; Engine Oil Pressure Switch; Oil Pressure Gauge Sw; Oil Pressure Switch; Oil Gauge; Oil Gauge Sending Unit
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1997-1998 Mercury Mountaineer | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
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Mercury Mountaineer Oil Pressure Sensor Part Number: GC3Z-9278-B
$20.80 MSRP: $32.18
You Save: $11.38 (36%)
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Product Specifications
- Other Name: Switch Assembly - Oil Pressure; Engine Oil Pressure Switch; Oil Pressure Gauge Sw; Pressure Switch; Oil Pressure Switch; Pressure Sensor; Sending Unit; Switch Assembly; Oil Gauge
- Replaces: 6U5Z-9278-D, 1U5Z-9278-DA, GC3Z-9278-A, SW-6357
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1999-2010 Mercury Mountaineer | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS
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Mercury Mountaineer Oil Pressure Switch Part Number: E9SZ-9278-A
$11.72 MSRP: $18.91
You Save: $7.19 (39%)
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Product Specifications
- Other Name: Switch Assembly - Oil Pressure; Engine Oil Pressure Switch; Oil Pressure Gauge Sw; Oil Pressure Sending Unit; Oil Gauge Sending Unit
- Replaces: F4TZ-9278-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1997-1998 Mercury Mountaineer | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS

Mercury Mountaineer Oil Pressure Switch

OEM Oil Pressure Switch boasts unmatched quality. Each part goes through full quality checks. They adhere to Mercury's official factory standards. These steps remove flaws and inconsistencies. So you can get Oil Pressure Switch with long life and a perfect fit. Come to our website and find genuine Mercury Mountaineer parts. We keep a wide inventory of OEM Mountaineer parts at the highly affordable prices. It's easy to search, compare, and pick what you need. You'll love the clear info and simple checkout. We offer top-rated customer service, and we reply fast. We also ship promptly to ensure your order arrives on time.

The Oil Pressure Switch is a component parts which define the dependability and efficiency of the Mercury Mountaineer series. This vital invented gadget measures pressures of the staked oils which if varied endanger the engine and improves efficiency and safety among drivers. Designed for the Mercury Mountaineer car models manufactured between 1996 and 2010, the Oil Pressure Switch maintains the required values of the engine work, protecting its parts. Mercury Mountaineer gains a lot from detecting high and low oil pressure situations due to its attributes of upscale features and strong performing car. This functionality is important in the longevity of the engine to put the Mercury Mountaineer as a reliable vehicle among SUVs. The Oil Pressure Switch is unique in the automotive market because of their accurate work and reliability that is necessary for the situations faced by the Mercury Mountaineer. Not only does the Oil Pressure Switch improve functionality of the vehicle, and its component parts, but it also becomes a component that contributes positively to the aesthetics of the car for the driver. Being one of the distinctive features of the Mercury automobiles, the Oil Pressure Switch is a clear reflection of the Mercury Mountaineer's virtues, which are excellence and safe motor-carrying. In conclusion, the Oil Pressure Switch is a must-have feature to ensure the existence and future of the Mercury Mountaineer as it has contributed a lot to the outstanding and distinctive touch of this intimate SUV.

Mercury Mountaineer Oil Pressure Switch Parts and Q&A

Oil Pressure Sensor
GC3Z-9278-B
Q: How to Service the Oil Pressure Switch on Mercury Mountaineer?
A:
The maintenance of the oil pressure switch requires removing the battery ground cable as a first step. Begin the oil pressure switch service by first removing the switch after disconnecting its electrical connector. The threads of the new oil pressure switch must receive a coating of Pipe Sealant with Teflon D8AZ-19554-A or Wsk-M2G350-A2 prior to installation. The installation ends by performing the procedure in reverse order.