How to service the Mass Air Flow Sensor on 2003 Mercury Mountaineer?

In order to service the Mass Air Flow (MAF) sensor, disconnect battery ground cable. The MAF sensor module and body are adjusted and are supposed to be serviced as a unit. Do not allow interference with the sensing elements. Take the parts out one after the other and install in the same order.

OEM 2003 Mercury Mountaineer Mass Air Flow Sensor

MAF Sensor Meter

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2003 Mercury Mountaineer Mass Air Flow Sensor Part Number: 1L2Z-12B579-ABRM
$231.27 MSRP: $315.15
You Save: $83.88 (27%)
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Product Specifications
- Other Name: Remanufactured Sensor Assembly; MAF Sensor Assembly; Air Mass Sensor
- Replaces: 1L2Z-12B579-AAA, 1L2Z-12B579-AAARM
- Base No.: 12B579
- Item Weight: 0.80 Pounds
- Item Dimensions: 5.3 x 4.3 x 5.9 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 1L2Z-12B579-ABRM
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2003 Mercury Mountaineer Submodels:
- Base, Convenience, Luxury, Premier | 8 Cyl 4.6 L GAS
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2003 Mercury Mountaineer Mass Air Flow Sensor Part Number: 1L2Z-12B579-ARM
Product Specifications
- Other Name: Remanufactured Sensor Assembly; Air Charge Temperature Sensor; MAF Sensor Assembly.; Air Mass Sensor
- Replaces: 1L2Z-12B579-BA, 1L2Z-12B579-BARM, XF2Z-12B579-AA, AFLS-154, XF2Z-12B579-ABRM
- Base No.: 12B579
- Item Weight: 0.80 Pounds
- Item Dimensions: 6.1 x 5.0 x 6.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 1L2Z-12B579-ARM
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2003 Mercury Mountaineer Submodels:
- Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS

2003 Mercury Mountaineer Mass Air Flow Sensor

If you're seeking quality and affordability, look no further than our extensive inventory of genuine 2003 Mercury Mountaineer Mass Air Flow Sensor available at FordPartsDeal.com. You can confidently purchase our OEM 2003 Mercury Mountaineer Mass Air Flow Sensor as they are supported by the manufacturer's warranty and our hassle-free return policy, alongside the benefit of our fast delivery service.

2003 Mercury Mountaineer Mass Air Flow Sensor Parts Q&A

Q: How to service the Mass Air Flow Sensor on 2003 Mercury Mountaineer?
A: In order to service the Mass Air Flow (MAF) sensor, disconnect battery ground cable. The MAF sensor module and body are adjusted and are supposed to be serviced as a unit. Do not allow interference with the sensing elements. Take the parts out one after the other and install in the same order.