Make sure this part fits

Mercury F77Z-8501-AD Pump Assembly - Water

1998-2005 Mercury Mountaineer F77Z8501AD

Customer Questions & Expert Answers (9)
Ford F77Z-8501-AD Pump Assembly - Water
  • Part Description
    Pump Assy - Water
  • Replaced By
    6L2Z-8501-C
  • Manufacturer
    Ford
Make sure this part fits
$91.31 MSRP: $145.64
You Save: $54.33 (38%)
1
ADD TO CART
  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine Mercury
    Manufacturer Part NumberF77Z-8501-AD, F77Z8501AD
    Part DescriptionPump Assy - Water
    Manufacturer Note#97JM 8501-AD - does not include 1L2Z-8507-AA gasket, SOHC
    Item Dimensions14.3 x 7.9 x 9.3 inches
    Item Weight6.90 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerFord
    SKUF77Z-8501-AD
    WarrantyThis genuine Ford part is guaranteed by Ford's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California’s Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    1998-2005 Mercury Mountaineer6 Cyl 4.0L, 6 Cyl 4.0L SOHC EFI4AT 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)
  • Customer Questions & Expert Answers

    Q:
    Is the the correct part for the attached VIN? Posted by FordPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if F77Z-8501-AD fits your vehicle.
    Posted by FordPartsGiant Specialist
    Q:
    How to check and replace a water pump on Ford Explorer Sport Trac? Posted by Customer
    A:
    When the engine is hot, you should press the upper radiator hose to check if the water pump is alright. A flashlight can be used to find leaks through weep or vent holes. At the front of the engine listen for a howling sound and then check for shaft wear. Before removing the fan, pulley and hoses, drain the cooling system by disconnecting the battery since power will be shut off. Then go ahead and take out alternator only if necessary. Seal up every surface, attach a new pump with gasket, and tighten bolts. Lastly, after reinstalling all parts, fill up your system again ensuring that belt tension is ok when starting your car and run it while checking for any leaks.
    Posted by FordPartsGiant Specialist
    Q:
    What are the signs of a failure in the water pump on Mercury Mountaineer? Posted by Customer
    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.
    Posted by FordPartsGiant Specialist
    Q:
    How can I detect water pump shaft bearing failure for the 1998 Ford Explorer? Posted by Customer
    A:
    Listen for a howling sound at the front of the engine while it is running. Additionally, check for noticeable shaft wear by rocking the pulley.
    Posted by FordPartsGiant Specialist
    See expert answers on similar Water Pump
    Q:
    How can you tell if there is a failure at the pump seal for the 2011 Ford Mustang? Posted by Customer
    A:
    If there is a failure at the pump seal, coolant will leak from the weep hole(s) on the water pump. You can look for traces of coolant residue or dried coolant tracks around the weep hole(s) using a flashlight.
    Posted by FordPartsGiant Specialist
    See expert answers on similar Water Pump
    Q:
    Are there any additional steps for the 2003 Ford Ranger? Posted by Customer
    A:
    Yes. For those models, you should also: 1. Disconnect the negative battery cable and drain the cooling system. 2. Remove the cooling fan and shroud. 3. Remove the drive belt, pulley, and hoses from the water pump. 4. Proceed to remove the water pump from the engine. 5. Clean the bolt threads and threaded holes in the engine. 6. Compare the new pump to the old one and remove old gasket material. 7. Clean the engine and new water pump gasket mating surfaces with lacquer thinner or acetone. 8. Apply RTV sealant to the engine side of the new gasket and the gasket mating surface of the new pump. 9. Attach the pump and gasket to the engine, threading the bolts in finger-tight. 10. Install the remaining bolts, tighten them evenly in 1/4-turn increments, and reinstall any removed parts. 11. Refill the cooling system and check the drive belt tension before running the engine and checking for leaks.
    Posted by FordPartsGiant Specialist
    See expert answers on similar Water Pump
    Q:
    How should the water pump be removed on the 2014 Ford Mustang? Posted by Customer
    A:
    Remove the thermostat housing, then proceed to remove the bolts in reverse order.
    Posted by FordPartsGiant Specialist
    See expert answers on similar Water Pump
    Q:
    What should you do if issues arise with the water pump for the 1994 Ford Ranger? Posted by Customer
    A:
    If issues arise, replacing the water pump is necessary.
    Posted by FordPartsGiant Specialist
    See expert answers on similar Water Pump
    Q:
    What is the first step in removing the water pump for the 2006 Mercury Mountaineer? Posted by Customer
    A:
    Disconnect the cable from the negative battery terminal.
    Posted by FordPartsGiant Specialist
    See expert answers on similar Water Pump
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

Genuine Ford Part F77Z-8501-AD, the Right Choice

Your vehicle deserves only genuine OEM Ford parts and accessories. To ensure reliability, purchase Ford part # F77Z-8501-AD Pump Assembly - Water. It is sometimes referred to as Mercury Water Pump. Our Ford parts and accessories are expedited directly from authorized Ford dealers strategically located all across the U.S. and are backed by the manufacturer's 12 month, 12,000 mile warranty. OEM Ford parts are the best for restoring your vehicle to factory condition performance. This part fits specific Mercury Mountaineer models.

Affordable, reliable and built to last, Ford part # F77Z8501AD Pump Assembly - Water stands out as the smart option. FordPartsGiant.com is your prime online source with the biggest and best selection of genuine Ford parts and accessories at giant discounted prices. We have the OEM Ford parts and accessories you need at the wholesale prices. FordPartsGiant.com has you covered no matter what type of Ford vehicle you drive. For detailed Mercury parts information, click here.

Why choose Ford Parts Giant

  • Dedicated Service

    Your complete satisfaction is our #1 goal

  • Lowest Prices

    Best deals on genuine OE parts from dealerships

  • Fast Delivery

    Orders are processed and delivered promptly