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Genuine Mercury Mountaineer Water Pump

H2O Pump
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5 Water Pumps found

  • Mercury Mountaineer Water Pump - 5L2Z-8501-A
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    Mercury Mountaineer Pump Assembly - Water

    Part Number: 5L2Z-8501-A
    $50.82 MSRP: $84.00
    You Save: $33.18 (40%)
    Ships in 1 Business Day
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    Product Specifications
    • Other Name: Pump Assy - Water
    • Replaced by: 3L3Z-8501-CA
    • Warranty: This genuine part is guaranteed by Ford's factory warranty.
    Fits the following Vehicles:
    • 2006-2010 Mercury Mountaineer | 8 Cyl 4.6L | 5-Speed Automatic Transmission 5R55S, 5-Speed Automatic Transmission 5R55W, 5-Speed Manual Transmission (M5R4), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Right Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
  • Mercury Mountaineer Water Pump - 6L2Z-8501-A
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    Mercury Mountaineer Pump Assembly - Water

    Part Number: 6L2Z-8501-A
    $88.11 MSRP: $145.64
    You Save: $57.53 (40%)
    ADD TO CART
    Product Specifications
    • Other Name: Pump Assy - Water; Water Pump, Water Pump Assembly
    • Replaced by: 6L2Z-8501-C
    • Warranty: This genuine part is guaranteed by Ford's factory warranty.
    Fits the following Vehicles:
    • 2006-2010 Mercury Mountaineer | 6 Cyl 4.0L SOHC EFI | 5-Speed Automatic Transmission 5R55S, 5-Speed Automatic Transmission 5R55W, 5-Speed Manual Transmission (M5R4), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Right Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
  • Mercury Mountaineer Water Pump - F77Z-8501-AD
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    Mercury Mountaineer Pump Assembly - Water

    Part Number: F77Z-8501-AD
    $91.31 MSRP: $145.64
    You Save: $54.33 (38%)
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    Product Specifications
    • Other Name: Pump Assy - Water
    • Manufacturer Note: #97JM 8501-AD - does not include 1L2Z-8507-AA gasket, SOHC
    • Replaced by: 6L2Z-8501-C
    • Warranty: This genuine part is guaranteed by Ford's factory warranty.
    Fits the following Vehicles:
    • 1998-2005 Mercury Mountaineer | 6 Cyl 4.0L, 6 Cyl 4.0L SOHC EFI | 4AT 4R70W, 5AT 5R55E, 5-Speed Automatic Transmission 5R55S, 5-Speed Automatic Transmission 5R55W, 5-Speed Manual Transmission (M5R4), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Right Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
  • Mercury Mountaineer Water Pump - 1L2Z-8501-BB
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    Mercury Mountaineer Pump Assembly - Water

    Part Number: 1L2Z-8501-BB
    $50.82 MSRP: $84.00
    You Save: $33.18 (40%)
    Ships in 1 Business Day
    ADD TO CART
    Product Specifications
    • Other Name: Pump Assy - Water
    • Replaced by: 3L3Z-8501-CA
    • Warranty: This genuine part is guaranteed by Ford's factory warranty.
    Fits the following Vehicles:
    • 2002-2005 Mercury Mountaineer | 8 Cyl 4.6L Romeo SOHC EFI | 5-Speed Automatic Transmission 5R55S, 5-Speed Automatic Transmission 5R55W, 5-Speed Manual Transmission (M5R4), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Right Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
  • Mercury Mountaineer Water Pump - F87Z-8501-CA
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    Mercury Mountaineer Pump Assembly - Water

    Part Number: F87Z-8501-CA
    Product Specifications
    • Other Name: Pump Assy - Water; Water Pump, Water Pump Assembly
    • Warranty: This genuine part is guaranteed by Ford's factory warranty.
    Fits the following Vehicles:
    • 1997-2001 Mercury Mountaineer | 8 Cyl 5.0L | 4AT 4R70W, 5AT 5R55E

Mercury Mountaineer Water Pump Parts Questions & Experts Answers

  • Mercury Mountaineer Water Pump - 6L2Z-8501-A Pump Assembly - Water Pump Assembly - Water
    6L2Z-8501-A
    Q: How to remove and install a water pump on Mercury Mountaineer?
    A: Disconnect the cable from the negative battery terminal. Drain the cooling system. Remove the drive belt. Remove the Engine Cooling Fan. Remove the water pump pulley. When loosening the bolts, hold the pulley with a strap or chain wrench to prevent it from turning. For V6 models, remove the bypass hose, the heater hose, and the lower radiator hose from the water pump. Remove the bolts attaching the water pump to the engine block and remove the pump from the engine. If the water pump is stuck, gently tap it with a soft-faced hammer to break the seal. Clean the bolt threads and the threaded holes in the engine and remove the corrosion and sealant. Remove all traces of old gasket material from the sealing surfaces. For V8 models, remove the water pump mounting bolts. Clean the O-ring surfaces on the pump and the housing. If you're installing the old pump, install a new O-ring. Clean the bolt threads and the threaded holes in the engine and remove the corrosion and debris. Compare the new pump to the old one to make sure that they're identical. On V6 models, apply a thin film of RTV sealant to hold the new gasket in place during installation. Make sure that the gasket is correctly positioned on the water pump and the engine block surface is clean and free of old gasket material. Carefully mate the pump to the water pump housing. Install the water pump bolts and tighten them to the torque. Don't overtighten the water pump bolts; doing so will damage the pump. The remainder of the installation is the reverse of removal. Refill the cooling system when you're done. Operate the engine to check for leaks.
  • Mercury Mountaineer Water Pump - 5L2Z-8501-A Pump Assembly - Water Pump Assembly - Water
    5L2Z-8501-A
    Q: What are the signs of a failure in the water pump on Mercury Mountaineer?
    A: Water pump failure can cause engine damage due to overheating. If the pump seal fails, coolant leaks from the front cover in V6 models or the water pump housing in V8 models. The water pump is located in the front cover for V6 engines and in a housing in the engine block for V8 engines. Water pumps have weep holes that can be checked for leaks with a flashlight. If there's heavy brown staining or visible coolant, the pump needs replacing. If the pump shaft bearings fail, a howling sound may be heard. Shaft wear can be felt by rocking the water pump pulley. Don't confuse drivebelt slippage, which causes a squealing sound, with pump bearing failure. A quick pump check is to turn on the heater; if the pump is failing, it won't circulate hot water efficiently.

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