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Genuine Ford Expedition Valve Stem Seal

Engine Valve Seal
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5 Valve Stem Seals found

  • Ford Expedition Valve Stem Seal - BL3Z-6571-A
    Ford Expedition Valve Stem Seal - BL3Z-6571-A
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    Ford Expedition Valve Stem Seal

    Part Number: BL3Z-6571-A
    $2.63 MSRP: $3.75
    You Save: $1.12 (30%)
    Ships in 1-3 Business Days
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    Product Specifications
    • Other Name: Seal - Valve Stem; Valve Seals
    • Manufacturer Note: 4 Per Package
    • Replaces: 7T4Z-6571-AA
    • Warranty: This genuine part is guaranteed by Ford's factory warranty.
    Fits the following Vehicles:
    • 2015-2017 Ford Expedition | 6 Cyl 3.5L GTDI | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
  • Ford Expedition Valve Stem Seal - 3L3Z-6571-DA
    Ford Expedition Valve Stem Seal - 3L3Z-6571-DA
    Ford Expedition Valve Stem Seal - 3L3Z-6571-DA
    Ford Expedition Valve Stem Seal - 3L3Z-6571-DA
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    Ford Expedition Valve Stem Seal

    Part Number: 3L3Z-6571-DA
    $5.08 MSRP: $7.23
    You Save: $2.15 (30%)
    Ships in 1 Business Day
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    Product Specifications
    • Other Name: Seal - Valve Stem; Valve Seals
    • Manufacturer Note: SEAL, VALVE STEM
    • Replaces: 3L3Z-6571-CA
    • Warranty: This genuine part is guaranteed by Ford's factory warranty.
    Fits the following Vehicles:
    • 2005-2014 Ford Expedition | 8 Cyl 5.4L | 4AT 4R75W, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
  • Ford Expedition Valve Stem Seal - HL3Z-6571-A
    Ford Expedition Valve Stem Seal - HL3Z-6571-A
    Ford Expedition Valve Stem Seal - HL3Z-6571-A
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    Ford Expedition Valve Stem Seal

    Part Number: HL3Z-6571-A
    $1.53 MSRP: $2.18
    You Save: $0.65 (30%)
    Ships in 1 Business Day
    ADD TO CART
    Product Specifications
    • Other Name: Seal - Valve Stem; Valve Seals
    • Warranty: This genuine part is guaranteed by Ford's factory warranty.
    Fits the following Vehicles:
    • 2018-2025 Ford Expedition | 6 Cyl 3.5 L FLEX, 6 Cyl 3.5 L GAS, 6 Cyl 3.5L GTDI | 10-Speed Automatic Transmission (10R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
  • Ford Expedition Valve Stem Seal - F4AZ-6571-A
    Ford Expedition Valve Stem Seal - F4AZ-6571-A
    Ford Expedition Valve Stem Seal - F4AZ-6571-A
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    Ford Expedition Valve Stem Seal

    Part Number: F4AZ-6571-A
    $6.28 MSRP: $9.38
    You Save: $3.10 (34%)
    Ships in 1-3 Business Days
    ADD TO CART
    Product Specifications
    • Other Name: Seal - Valve Stem; Valve Seals
    • Replaces: F4AZ-6049-A, F3AZ-6049-A
    • Warranty: This genuine part is guaranteed by Ford's factory warranty.
    Fits the following Vehicles:
    • 1997-2002 Ford Expedition | 8 Cyl 4.6L | 4AT 4R100, 4AT 4R70W, 4AT E4OD
  • Ford Expedition Valve Stem Seal - F6AZ-6571-AA
    Ford Expedition Valve Stem Seal - F6AZ-6571-AA
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    Ford Expedition Valve Stem Seal

    Part Number: F6AZ-6571-AA
    $2.12 MSRP: $3.16
    You Save: $1.04 (33%)
    Ships in 1-3 Business Days
    ADD TO CART
    Product Specifications
    • Other Name: Seal - Valve Stem
    • Replaced by: DC2Z-6571-A
    • Warranty: This genuine part is guaranteed by Ford's factory warranty.
    Fits the following Vehicles:
    • 1997-2004 Ford Expedition | 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI, 8 Cyl 5.4L, 8 Cyl 5.4L Modular SOHC | 4AT 4R100, 4AT 4R70W, 4AT 4R75W, 4AT E4OD, 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R75E W/TSS, 6-Speed Automatic Transmission (6R75), 6-Speed Automatic Transmission (6R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)

Ford Expedition Valve Stem Seal

The Ford Expedition Valve Stem Seal keeps engine oil from seeping into the combustion chamber while providing a smooth surface for the valve. As a result, engine power is maintained and smoke is avoided. Enveloping each stem, a Valve Stem Seal maintains compression so the intake and exhaust valves exchange fresh mixture and burnt gases as demanded by the cam. On a Ford Expedition, if the seal degrades, the oil drips past the stem and fouls plugs, raises consumption, and worsens existing misfires promoted by a widening lash, weak springs, or overheated exhaust valves. Through Ford engine generations, OHV blocks and later OHC heads came and went, but the Valve Stem Seal hewed to the stem and kept oil out of the chamber. Although no particular styles linked with any unique Expedition year are mentioned, today's materials for the Valve Stem Seal combat against exhaust heat and spring loads topping two hundred pounds when valves fully swing open. Timely replacement of a worn Valve Stem Seal is a simple defense against costly damage that keeps any high-mileage Expedition clean while extending the service life of critical Ford cylinder heads.

We provide a wide range of Ford Expedition Valve Stem Seal at the optimal prices. If you need Ford Expedition Valve Stem Seal, you can shop with confidence on our website. All our OEM parts come with a manufacturer's warranty and are delivered to your doorstep with a fast delivery service.

Ford Expedition Valve Stem Seal Parts Questions & Experts Answers

  • Ford Expedition Valve Stem Seal - 3L3Z-6571-DA Valve Stem Seal Valve Stem Seal
    3L3Z-6571-DA
    Q: Can broken valve springs and defective valve stem seals be replaced without removing the cylinder heads in V8 engine on Ford Expedition?
    A:
    Valve-spring and valve-stem-seal wear and failure can be remedied without having to pull the heads because of factory tools for removing the valve springs as well as the seals with the Camshaft in the head. A second procedure employs a tool that is more readily procurable from a mainstream automobile store, but in this method, the camshaft should be withdrawn in order to get access to the valve spring. Indeed, it will produce similar results, but the manufacturer's method is less complicated if the proper equipment is obtained. This may require compressed air, which should be assembled before the procedure takes place. Therefore, it is always the best practice to assemble all the tools that are needed for the particular operation. The procedure starts with the undoing of the valve cover and the spark plug of the cylinder in question, rotating the crankshaft until a piston comes to a TDC on compression as well as screwing an air hose adaptor into a spark plug hole. The valves are then closed with the help of compressed air and the cylinder head holes with small shop rags to avoid dropping of parts into the engine. Besides using special tools, there is a need of a valve spacer whenever compressing the spring in a manner that may adversely affect the valve seal. The Rocker Arm is pulled off and the keepers are then pulled with the help of pliers or a magnet as the spring is compressed. The spring retainer, the valve spring, and the valve stem seal are then taken out and if air pressure cannot retain the valve then further repair works may be required. For the other method, realistically the camshaft has to be unbolted from the head to fit a clamp style valve spring compressor and then the same process as the shoe style. In installation, a rubber band or tape is used to fasten the valve stem In case of a damaged valve, it is replaced. Following lubrication of the stem of the valve and the replacement of the seal, the retainer for the spring of the valve is placed, and the keepers fastened. Finally, the air hose is removed and the spark plug is replaced and the engine is being cranked in order to see if there are any signs of leakage and or funny noises.

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