How to service and repair a water pump on 2004 Ford Mustang?

To service the water pump, drain engine coolant, remove power steering pump pulley and coolant pump pulley. Disconnect lower radiator hose and outlet tube of the coolant heater. Disassemble the coolant pump, wipe-clean the gasket surfaces and use a new gasket and repeat the process, tightening all pieces accordingly.

OEM 2004 Ford Mustang Water Pump

H2O Pump

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4 Water Pumps found

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2004 Ford Mustang Water Pump Part Number: 3L3Z-8501-CA
$51.84 MSRP: $83.64
You Save: $31.80 (39%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Pump Assembly - Water; Engine Water Pump; Water Pump Assembly
- Manufacturer Note: With M30 Hub
- Replaced by: 5L3Z-8501-AC
- Replaces: 5R3Z-8501-A, 5L2Z-8501-A, 1L2Z-8501-BB, F7UZ-8501-CA, F8AZ-8501-AA, PW-470, PW-387, YW7Z-8501-AA, AR3Z-8501-A, F4AZ-8501-A, AL3Z-8501-B, PW-499, YR3Z-8501-AB, YC2Z-8501-BA, PW-466, XC2Z-8501-BA
- Base No.: 8501
- Item Weight: 5.60 Pounds
- Item Dimensions: 6.6 x 5.6 x 5.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 3L3Z-8501-CA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
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Fits the following 2004 Ford Mustang Submodels:
- Bullitt, GT, GT Bullitt, Mach 1, Shelby GT, SVT Cobra, SVT Cobra 10th Anniversary | 8 Cyl 4.6 L GAS
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2004 Ford Mustang Water Pump Part Number: 5W7Z-8501-AA
$65.59 MSRP: $105.82
You Save: $40.23 (39%)
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Product Specifications
- Other Name: Pump Assembly - Water; Engine Water Pump; Water Pump Assembly
- Replaced by: 9W7Z-8501-A
- Replaces: YW7Z-8501-BB
- Base No.: 8501
- Item Weight: 3.00 Pounds
- Item Dimensions: 5.8 x 5.6 x 5.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 5W7Z-8501-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2004 Ford Mustang Submodels:
- GT, Mach 1, SVT Cobra, SVT Cobra 10th Anniversary | 8 Cyl 4.6 L GAS
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2004 Ford Mustang Water Pump Part Number: F8YZ-8501-AA
$320.84 MSRP: $532.73
You Save: $211.89 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Pump Assembly - Water; Engine Auxiliary Water Pump; Electric Water Pump; Engine Water Pump
- Base No.: 8501
- Item Weight: 3.00 Pounds
- Item Dimensions: 10.2 x 4.5 x 6.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: F8YZ-8501-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2004 Ford Mustang Submodels:
- GT, Mach 1, SVT Cobra, SVT Cobra 10th Anniversary | 8 Cyl 4.6 L GAS
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2004 Ford Mustang Water Pump Part Number: 3R3Z-8501-A
$72.89 MSRP: $122.36
You Save: $49.47 (41%)
ADD TO CART
Product Specifications
- Other Name: Pump Assembly - Water; Engine Water Pump; Water Pump Assembly
- Replaces: 4U7Z-8501-A, 4U7Z-8501-B, 3R3Z-8501-BB
- Base No.: 8501
- Item Weight: 6.10 Pounds
- Item Dimensions: 9.0 x 8.6 x 11.8 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 3R3Z-8501-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2004 Ford Mustang Submodels:
- Base | 6 Cyl 3.8 L GAS, 6 Cyl 3.9 L GAS

2004 Ford Mustang Water Pump

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2004 Ford Mustang Water Pump Parts Q&A

Q: How to service and repair a water pump on 2004 Ford Mustang?
A: To service the water pump, drain engine coolant, remove power steering pump pulley and coolant pump pulley. Disconnect lower radiator hose and outlet tube of the coolant heater. Disassemble the coolant pump, wipe-clean the gasket surfaces and use a new gasket and repeat the process, tightening all pieces accordingly.