How Can One Service and Repair Valve Stem Seals to Prevent Engine Failure on Ford F-150?

The successful repair of valve stem seals requires cleanliness during engine maintenance since foreign items including cleaning gasket surface debris can trigger engine failure. The first step requires removing valve springs before taking out valve seals. Engine oil that is clean should be used to lubricate new valve seals before their installation. You should perform all reverse steps from removal as the final part of the procedure.

How to Remove and Replace the Valve Stem Seal, Spring, and Retainer on Ford Mustang?

The valve spring along with retainer and also the valve stem seal can be removed by first extracting the spark plugs and camshaft roller followers. Set the piston within the serviced cylinder to Top Dead Center position. A valve support must be put in place to stop the valve from entering the cylinder upon air pressure loss since the piston reached the bottom of the cylinder. Begin by using appropriate equipment to apply air pressure on the cylinder followed by installation of the Valve Spring Compressor tool to take off valve spring retainer keys and valve spring retainers and valve springs. The last step is valve stem seal removal. Before valve stem seal installation, you should apply clean engine oil for lubrication before using Valve Stem Oil Seal Installer to perform the operation. Clean engine oil will be used to lubricate valve springs along with retainers and retainer keys before installation through the Valve Spring Compressor. Reinstallation of camshaft roller followers as well as the spark plugs should finish the installation process.

OEM Ford Valve Stem Seal

Engine Valve Seal

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51 Valve Stem Seals found

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Ford Valve Seals Part Number: 1F2Z-6571-AA
$2.97 MSRP: $4.22
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Product Specifications
- Other Name: Seal - Valve Stem; Engine Valve Stem Oil Seal Set; Valve Stem Oil Seal Set; Valve Stem Seal
- Manufacturer Note: Intake & Exhaust
- Replaces: XF2Z-6571-BA
Fits the following Ford Models:
- E-150 | 2003 | Base | 6 Cyl 4.2 L GAS
- E-150 Econoline | 1999-2002 | Base, XL | 6 Cyl 4.2 L GAS
- E-250 | 2003 | Base | 6 Cyl 4.2 L GAS
- E-250 Econoline | 1999-2002 | Base, XL | 6 Cyl 4.2 L GAS
- F-150 | 2005-2008, 1999-2003 | Base, STX, XL, XLT | 6 Cyl 4.2 L GAS
- F-150 Heritage | 2004 | XL, XLT | 6 Cyl 4.2 L GAS
- Freestar | 2004-2007 | Base, Limited, S, SE, SEL, SES | 6 Cyl 3.9 L GAS, 6 Cyl 4.2 L GAS
- Mustang | 1999-2004 | Base | 6 Cyl 3.8 L GAS, 6 Cyl 3.9 L GAS
- Ranger | 1999-2001 | XL, XLT | 4 Cyl 2.5 L GAS
- Windstar | 1999-2003 | Base, Limited, LX, SE, SE Sport, SEL | 6 Cyl 3.8 L GAS
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Ford Valve Seals Part Number: 5C1Z-6571-A
$19.78 MSRP: $28.05
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Product Specifications
- Other Name: Seal - Valve Stem; Valve Stem Seal
Fits the following Ford Models:
- Transit-150 | 2015-2019 | Base, XL, XLT | 5 Cyl 3.2 L DIESEL
- Transit-250 | 2015-2019 | Base, PTV | 5 Cyl 3.2 L DIESEL
- Transit-350 | 2015-2019 | Base, XL, XLT | 5 Cyl 3.2 L DIESEL
- Transit-350 HD | 2015-2019 | Base, XL, XLT | 5 Cyl 3.2 L DIESEL
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Ford Valve Seals Part Number: GR3Z-6571-A
$6.53 MSRP: $9.26
You Save: $2.73 (30%)
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Product Specifications
- Other Name: Seal - Valve Stem; Valve Stem Seal
Fits the following Ford Models:
- Mustang | 2015-2020 | Shelby GT350, Shelby GT350R | 8 Cyl 5.2 L GAS
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Ford Valve Seals Part Number: DC2Z-6571-A
$2.27 MSRP: $3.22
You Save: $0.95 (30%)
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Product Specifications
- Other Name: Seal - Valve Stem; Valve Stem Seal
- Replaces: F6AZ-6571-AA
Fits the following Ford Models:
- Crown Victoria | 1994-2006 | Base, Fleet, LWB, LX, LX Sport, Police Interceptor, S, Special Edition | 8 Cyl 4.6 L CNG, 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
- E-150 | 2003-2014 | Base, Chateau, XL, XLT | 8 Cyl 4.6 L GAS, 8 Cyl 5.4 L CNG, 8 Cyl 5.4 L FLEX, 8 Cyl 5.4 L GAS, 8 Cyl 5.4 L LPG
- E-150 Econoline | 1997-2002 | Base, XL | 8 Cyl 4.6 L GAS, 8 Cyl 5.4 L BI-FUEL, 8 Cyl 5.4 L GAS
- E-150 Econoline Club Wagon | 1997-2002 | Chateau, Custom, XL, XLT | 8 Cyl 4.6 L GAS, 8 Cyl 5.4 L BI-FUEL, 8 Cyl 5.4 L GAS
- E-250 | 2003-2014 | Base | 8 Cyl 4.6 L GAS, 8 Cyl 5.4 L CNG, 8 Cyl 5.4 L FLEX, 8 Cyl 5.4 L GAS, 8 Cyl 5.4 L LPG
- E-250 Econoline | 2002, 1997-1999 | Base | 8 Cyl 5.4 L BI-FUEL, 8 Cyl 5.4 L CNG, 8 Cyl 5.4 L GAS
- E-350 Econoline | 1997-1998 | Base, XL | 10 Cyl 6.8 L GAS, 8 Cyl 5.4 L BI-FUEL, 8 Cyl 5.4 L CNG, 8 Cyl 5.4 L GAS
- E-350 Econoline Club Wagon | 1997-2002 | Chateau, Custom, XL, XL HD, XLT, XLT HD | 10 Cyl 6.8 L GAS, 8 Cyl 5.4 L BI-FUEL, 8 Cyl 5.4 L CNG, 8 Cyl 5.4 L GAS
- E-350 Super Duty | 1999-2019 | Base, Chateau, XL, XLT | 10 Cyl 6.8 L CNG, 10 Cyl 6.8 L GAS, 10 Cyl 6.8 L LPG, 8 Cyl 5.4 L BI-FUEL, 8 Cyl 5.4 L CNG, 8 Cyl 5.4 L FLEX, 8 Cyl 5.4 L GAS, 8 Cyl 5.4 L LPG
- Excursion | 2000-2005 | Eddie Bauer, Limited, XLS, XLT | 10 Cyl 6.8 L GAS, 8 Cyl 5.4 L GAS
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Ford Valve Seals Part Number: BC3Z-6571-A
$3.33 MSRP: $4.72
You Save: $1.39 (30%)
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Product Specifications
- Other Name: Seal - Valve Stem; Valve Stem Seal
Fits the following Ford Models:
- F-250 Super Duty | 2011-2023 | King Ranch, Lariat, Limited, Platinum, XL, XLT | 8 Cyl 6.7 L DIESEL
- F-350 Super Duty | 2011-2023 | King Ranch, Lariat, Limited, Platinum, XL, XLT | 8 Cyl 6.7 L DIESEL
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Ford Valve Seals Part Number: F5LY-6571-A
$2.48 MSRP: $3.51
You Save: $1.03 (30%)
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Product Specifications
- Other Name: Seal - Valve Stem; Engine Valve Stem Oil Seal Set; Valve Stem Oil Seal Set; Valve Stem Seal
Fits the following Ford Models:
- Crown Victoria | 2003-2004 | Base, LWB, LX, LX Sport, Police Interceptor, S | 8 Cyl 4.6 L CNG, 8 Cyl 4.6 L GAS
- Mustang | 2007-2014, 2003-2004, 2001, 1996-1999 | Mach 1, Shelby GT500, Shelby GT500KR, SVT Cobra, SVT Cobra 10th Anniversary | 8 Cyl 4.6 L GAS, 8 Cyl 5.4 L GAS, 8 Cyl 5.8 L GAS
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Ford Valve Seals Part Number: F4TZ-6571-A
$6.17 MSRP: $8.08
You Save: $1.91 (24%)
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Product Specifications
- Other Name: Seal - Valve Stem; Engine Valve Stem Oil Seal Set; Valve Stem Oil Seal Set; Valve Stem Seal
Fits the following Ford Models:
- E-350 Econoline | 1995-1998 | Base, XL | 8 Cyl 7.3 L DIESEL
- E-350 Econoline Club Wagon | 1995-2002 | Chateau, Chateau HD, Custom, XL, XL HD, XLT, XLT HD | 8 Cyl 7.3 L DIESEL
- E-350 Super Duty | 1999-2003 | Base, XL | 8 Cyl 7.3 L DIESEL
- Excursion | 2000-2003 | Eddie Bauer, Limited, XLT | 8 Cyl 7.3 L DIESEL
- F-250 | 1994-1996 | Eddie Bauer, Special, XL, XLT | 8 Cyl 7.3 L DIESEL
- F-250 HD | 1997 | XL, XLT | 8 Cyl 7.3 L DIESEL
- F-250 Super Duty | 1999-2003 | Lariat, XL, XLT | 8 Cyl 7.3 L DIESEL
- F-350 | 1994-1997 | Base, Eddie Bauer, Special, XL, XLT | 8 Cyl 7.3 L DIESEL
- F-350 Super Duty | 1999-2003 | King Ranch, Lariat, XL, XLT | 8 Cyl 7.3 L DIESEL
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Ford Valve Seals Part Number: 3C3Z-6571-AA
$11.88 MSRP: $15.55
You Save: $3.67 (24%)
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Product Specifications
- Other Name: Seal - Valve Stem; Engine Valve Stem Oil Seal Set; Valve Stem Oil Seal Set; Valve Stem Seal
- Manufacturer Note: SEAL ASM VALVE
Fits the following Ford Models:
- E-350 Super Duty | 2004-2010 | Base, Chateau, XL, XLT | 8 Cyl 6.0 L DIESEL
- Excursion | 2003-2005 | Eddie Bauer, Limited, XLS, XLT | 8 Cyl 6.0 L DIESEL
- F-250 Super Duty | 2003-2010 | Cabela's, FX4, Harley-Davidson Edition, King Ranch, Lariat, XL, XLT | 8 Cyl 6.0 L DIESEL, 8 Cyl 6.4 L DIESEL
- F-350 Super Duty | 2003-2010 | Cabela's, FX4, Harley-Davidson Edition, King Ranch, Lariat, XL, XLT | 8 Cyl 6.0 L DIESEL, 8 Cyl 6.4 L DIESEL
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Ford Valve Seals Part Number: F57Z-6571-A
$1.62 MSRP: $2.29
You Save: $0.67 (30%)
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Product Specifications
- Other Name: Seal - Valve Stem; Engine Valve Stem Oil Seal Set; Valve Stem Oil Seal Set; Valve Stem Seal; Exhaust Valve Seals; Intake Valve Seals
- Manufacturer Note: Intake & Exhaust
Fits the following Ford Models:
- E-150 Econoline | 1997-1998 | Base, XL | 6 Cyl 4.2 L GAS
- E-250 Econoline | 1997-1998 | Base, XL | 6 Cyl 4.2 L GAS
- F-150 | 1997-1998 | Base, XL, XLT | 6 Cyl 4.2 L GAS
- Mustang | 1996-1998 | Base | 6 Cyl 3.8 L GAS
- Ranger | 1993-1998 | Splash, Sport, STX, XL, XL Sport, XLT | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
- Thunderbird | 1996-1997 | LX | 6 Cyl 3.8 L GAS
- Windstar | 1996-1998 | Base, GL, Limited, LX | 6 Cyl 3.8 L GAS
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Ford Valve Seals Part Number: F3ZZ-6571-C
$2.04 MSRP: $2.89
You Save: $0.85 (30%)
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Product Specifications
- Other Name: Seal - Valve Stem; Valve Stem Seal; Exhaust Valve Seals; Intake Valve Seals; Intake Valve Stem Seal
- Manufacturer Note: Used on Intake & Exhaust valves
Fits the following Ford Models:
- Bronco | 1993-1996 | Custom, Eddie Bauer, XL, XLT, XLT Lariat, XLT Sport | 8 Cyl 5.0 L GAS
- E-150 Econoline | 1993-1996 | Base, XL | 8 Cyl 5.0 L GAS
- E-150 Econoline Club Wagon | 1993-1996 | Chateau, Custom, XLT | 8 Cyl 5.0 L GAS
- Explorer | 1996-2001 | Eddie Bauer, Limited, XLS, XLT | 8 Cyl 5.0 L GAS
- F-150 | 1993-1996 | Eddie Bauer, Special, XL, XLT | 8 Cyl 5.0 L GAS
- F-250 | 1993-1996 | Eddie Bauer, Special, XL, XLT | 8 Cyl 5.0 L GAS
- Mustang | 1993-1995 | GT, GTS, LX, SVT Cobra, SVT Cobra R | 8 Cyl 5.0 L GAS
- Thunderbird | 1993 | LX | 8 Cyl 5.0 L GAS
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Ford Valve Seals Part Number: AL3Z-6571-AA
$2.29 MSRP: $3.25
You Save: $0.96 (30%)
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Product Specifications
- Other Name: Seal - Valve Stem; Valve Stem Seal
- Replaces: AL3Z-6571-A
Fits the following Ford Models:
- F-150 | 2011-2014 | FX2, FX4, Harley-Davidson Edition, Lariat, Lariat Limited, Platinum, SVT Raptor, XLT | 8 Cyl 6.2 L GAS
- F-250 Super Duty | 2011-2016 | King Ranch, Lariat, Platinum, XL, XLT | 8 Cyl 6.2 L FLEX
- F-350 Super Duty | 2011-2016 | King Ranch, Lariat, Platinum, XL, XLT | 8 Cyl 6.2 L FLEX
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Ford Valve Seals Part Number: BE8Z-6571-A
$11.70 MSRP: $16.59
You Save: $4.89 (30%)
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Product Specifications
- Other Name: Seal - Valve Stem; Valve Stem Seal
- Manufacturer Note: Inlet
Fits the following Ford Models:
- Fiesta | 2011-2019 | S, SE, SEL, SES, ST Line, Titanium | 4 Cyl 1.6 L GAS
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Ford Valve Seals Part Number: HX7Z-6571-B
$9.40 MSRP: $13.33
You Save: $3.93 (30%)
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Product Specifications
- Other Name: Seal - Valve Stem; Valve Stem Seal
Fits the following Ford Models:
- Bronco Sport | 2021-2023 | Base, Big Bend, Heritage Edition, Outer Banks | 3 Cyl 1.5 L GAS
- Escape | 2020-2022 | S, SE, SEL | 3 Cyl 1.5 L GAS
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Ford Valve Seals Part Number: BE8Z-6571-C
$11.68 MSRP: $16.57
You Save: $4.89 (30%)
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Product Specifications
- Other Name: Seal - Valve Stem; Engine Valve Stem Oil Seal Set; Valve Stem Oil Seal Set; Valve Stem Seal
- Manufacturer Note: Exhaust
Fits the following Ford Models:
- Fiesta | 2011-2019 | S, SE, SEL, SES, ST Line, Titanium | 4 Cyl 1.6 L GAS
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Ford Valve Seals Part Number: P2GZ-6571-A
$4.74 MSRP: $6.71
You Save: $1.97 (30%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Seal - Valve Stem
Fits the following Ford Models:
- Escape | 2023 | Active, Base, Platinum, ST-Line, ST-Line Elite, ST-Line Select | 3 Cyl 1.5 L GAS, 4 Cyl 2.0 L GAS
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Ford Valve Seals Part Number: LC3Z-6571-A
$2.59 MSRP: $3.67
You Save: $1.08 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal - Valve Stem; Valve Stem Seal
Fits the following Ford Models:
- E-350 Super Duty | 2021-2023 | Base | 8 Cyl 7.3 L GAS
- F-250 Super Duty | 2020-2023 | King Ranch, Lariat, Platinum, XL, XLT | 8 Cyl 6.8 L GAS, 8 Cyl 7.3 L GAS
- F-350 Super Duty | 2020-2023 | King Ranch, Lariat, Platinum, XL, XLT | 8 Cyl 6.8 L GAS, 8 Cyl 7.3 L GAS
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Ford Valve Seals Part Number: YS4Z-6571-CA
$4.04 MSRP: $5.74
You Save: $1.70 (30%)
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Product Specifications
- Other Name: Seal - Valve Stem; Engine Valve Stem Oil Seal Set; Valve Stem Oil Seal Set; Valve Stem Seal; Exhaust Valve Seals; Intake Valve Seals
- Replaces: F8CZ-6571-AA, F6RZ-6571-CA
Fits the following Ford Models:
- Contour | 1995-2000 | Base, GL, GL Sport, LX, LX Sport, SE, Sport | 4 Cyl 2.0 L BI-FUEL, 4 Cyl 2.0 L GAS
- Escape | 2001-2004 | Limited, XLS, XLT | 4 Cyl 2.0 L GAS
- Escort | 1998-2003 | ZX2, ZX2 Cool Coupe, ZX2 Hot Coupe, ZX2 S/R | 4 Cyl 2.0 L GAS
- Focus | 2000-2004 | SE, Sony Limited Edition, SVT, ZTS, ZTW, ZX3, ZX5 | 4 Cyl 2.0 L GAS
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Ford Valve Seals Part Number: F3ZZ-6571-A
$2.04 MSRP: $2.90
You Save: $0.86 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal - Valve Stem; Valve Stem Seal
Fits the following Ford Models:
- Ranger | 1993-1994 | Splash, Sport, STX, XL, XLT | 4 Cyl 2.3 L GAS
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Ford Valve Seals Part Number: 4S7Z-6571-A
$3.91 MSRP: $5.56
You Save: $1.65 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal - Valve Stem; Valve Stem Seal
Fits the following Ford Models:
- F-150 | 2018-2021 | King Ranch, Lariat, Platinum, XL, XLT | 6 Cyl 3.0 L DIESEL
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Ford Valve Seals Part Number: F6DZ6571BA
Product Specifications
- Other Name: Seal - Valve Stem; Valve Stem Seal
Fits the following Ford Models:
- Taurus | 1996-1999 | SHO | 8 Cyl 3.4 L GAS

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Ford Valve Stem Seal

OEM Valve Stem Seal boasts unmatched quality. Each part goes through full quality checks. They adhere to Ford's official factory standards. These steps remove flaws and inconsistencies. So you can get Valve Stem Seal with long life and a perfect fit. Come to our website and find genuine Ford parts. We keep a wide inventory of OEM parts at the highly affordable prices. It's easy to search, compare, and pick what you need. You'll love the clear info and simple checkout. We offer top-rated customer service, and we reply fast. We also ship promptly to ensure your order arrives on time.

Ford Valve Stem Seal Parts and Q&A

Valve Seals
1F2Z-6571-AA
Q: How Can One Service and Repair Valve Stem Seals to Prevent Engine Failure on Ford F-150?
A:
The successful repair of valve stem seals requires cleanliness during engine maintenance since foreign items including cleaning gasket surface debris can trigger engine failure. The first step requires removing valve springs before taking out valve seals. Engine oil that is clean should be used to lubricate new valve seals before their installation. You should perform all reverse steps from removal as the final part of the procedure.
Valve Seals
F5LY-6571-A
Q: How to Remove and Replace the Valve Stem Seal, Spring, and Retainer on Ford Mustang?
A:
The valve spring along with retainer and also the valve stem seal can be removed by first extracting the spark plugs and camshaft roller followers. Set the piston within the serviced cylinder to Top Dead Center position. A valve support must be put in place to stop the valve from entering the cylinder upon air pressure loss since the piston reached the bottom of the cylinder. Begin by using appropriate equipment to apply air pressure on the cylinder followed by installation of the Valve Spring Compressor tool to take off valve spring retainer keys and valve spring retainers and valve springs. The last step is valve stem seal removal. Before valve stem seal installation, you should apply clean engine oil for lubrication before using Valve Stem Oil Seal Installer to perform the operation. Clean engine oil will be used to lubricate valve springs along with retainers and retainer keys before installation through the Valve Spring Compressor. Reinstallation of camshaft roller followers as well as the spark plugs should finish the installation process.