How to service the water pump on a 2.3L engine on Mercury Mariner?

In order to service the coolant pump of a 2.3L engine, lift the vehicle and empty the cooling system. Take out the accessory drive belt, the coolant pump pulley and pump bolts, disposing the old O-ring. Install O-ring and new pump and bleed and fill cooling system.

OEM Mercury Mariner Water Pump

H2O Pump

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7 Water Pumps found

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Mercury Mariner Water Pump Part Number: EU2Z-8501-D
$135.24 MSRP: $218.18
You Save: $82.94 (39%)
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Product Specifications
- Other Name: Pump Assembly - Water; Engine Water Pump; Water Pump Assembly
- Replaces: 3M4Z-8501-BG, 5M8Z-8501-A, 3M4Z-8501-BJ, 5M8Z-8501-B, PW-481, PW-437, PW-440
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2008 Mercury Mariner | Base, Luxury, Premier | 6 Cyl 3.0 L GAS
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Mercury Mariner Water Pump Part Number: 4S4Z-8501-E
$49.92 MSRP: $79.27
You Save: $29.35 (38%)
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Product Specifications
- Other Name: Pump Assembly - Water; Engine Water Pump; Water Pump Assembly
- Replaces: 6M8Z-8501-AC, PW-447, 1S7Z-8501-AK, 4S4Z-8501-AA, 4S4Z-8501-D, PW-465
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2011 Mercury Mariner | Base, Convenience, Hybrid, Premier | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
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Mercury Mariner Water Pump Part Number: 9M6Z-8C419-A
$166.03 MSRP: $263.64
You Save: $97.61 (38%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Pump Assembly; Engine Auxiliary Water Pump; Electric Water Pump; Engine Water Pump; Auxiliary Pump
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2011 Mercury Mariner | Hybrid | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV)
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Mercury Mariner Water Pump Part Number: 9L8Z-8501-A
$93.70 MSRP: $154.18
You Save: $60.48 (40%)
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Product Specifications
- Other Name: Pump Assembly - Water; Engine Water Pump
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2011 Mercury Mariner | Base, Premier | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Mariner Water Pump Part Number: 5M6Z-8501-A
$167.88 MSRP: $336.36
You Save: $168.48 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Kit - Water Pump Repair; Auxiliary Pump
- Replaces: 6M6Z-8C419-A, 5M6Z-8C419-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2008 Mercury Mariner | Base, Hybrid, Premier | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Mariner Water Pump Housing Part Number: 9L8Z-8501-C
Product Specifications
- Other Name: Pump Assembly - Water; Engine Water Pump Assembly; Water Pump Cover; Water Pump Assembly; Engine Water Pump; Water Pump
- Replaces: 9L8Z-8501-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2011 Mercury Mariner | Base, Premier | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Mariner Water Pump Part Number: 5L8Z-8501-AA
Product Specifications
- Other Name: Pump Assembly - Water; Engine Water Pump; Water Pump Assembly
- Manufacturer Note: Water Pump Driven By Intake Camshaft
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2007 Mercury Mariner | Luxury, Premier | 6 Cyl 3.0 L GAS

Mercury Mariner Water Pump

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Mercury Mariner Water Pump Parts and Q&A

Water Pump
5L8Z-8501-AA
Q: How to service the water pump on a 2.3L engine on Mercury Mariner?
A: In order to service the coolant pump of a 2.3L engine, lift the vehicle and empty the cooling system. Take out the accessory Drive Belt, the coolant pump pulley and pump bolts, disposing the old O-ring. Install O-ring and new pump and bleed and fill cooling system.