How to Service and Repair the Rear Crankshaft Seal on Ford Mustang?

Exchanging and fixing the crankshaft rear seal requires starting with the removal of the flexplate or flywheel and then removing the spacer plate. A completed original crankshaft rear seal operates without a speedy sleeve although this feature exists in a new replacement seal. The removal of a metal speedy sleeve requires two screwdrivers or small pry bars to continue with any operation. You need to use Oil Seal Remover since it will help prevent damage to the crankshaft rear seal running surface when performing the removal step. Installation of the new crankshaft rear seal requires you to keep the provided speedy sleeve attached to the seal. Preparatively clean the crankshaft rear sealing surface with extra-fine emery cloth while using 0000 steel wool followed by applying clean engine oil to lubricate the crankshaft rear oil seal. Position the crankshaft rear seal with its speedy sleeve encircling the screws and adapter before using the Crankshaft Rear Oil Seal Installer to put the seal into place. The replacement process ends with the reinstallation of the flexplate-to-crankshaft spacer and spacer plate and flexplate or flywheel.

How to service the front crankshaft seal on Ford Mustang?

Service of the front crankshaft seal starts by eliminating the crankshaft pulley. The Crankshaft Front Oil Seal Remover will extract and dispose of the existing crankshaft front seal. Before installing the new front seal the surface needs engine oil application. The Front Cover Aligner and Crankshaft Vibration Damper Installer should be used for correct installation of the new crankshaft front seal. Finally, reinstall the crankshaft pulley.

OEM Ford Mustang Crankshaft Seal

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17 Crankshaft Seals found

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Ford Mustang Rear Main Seal Retainer Part Number: CG1Z-6335-B
$47.18 MSRP: $67.50
You Save: $20.32 (31%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Retainer - Crankshaft Oil Seal
- Replaces: 7T4Z-6K301-A, AT4Z-6K301-B, CG1Z-6K301-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2011-2017 Ford Mustang | Base, V6 | 6 Cyl 3.7 L GAS
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Ford Mustang Oil Seal, Front Part Number: XW4Z-6700-AA
$10.89 MSRP: $15.45
You Save: $4.56 (30%)
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Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil - Front; Engine Crankshaft Seal, Front; Timing Cover Gasket; Timing Cover Seal; Crankshaft Seal; Front Crank Seal; Timing Cover Oil Seal; Engine Crankshaft Seal
- Position: Front
- Replaces: XW4Z-6700-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2017 Ford Mustang | Base, Bullitt, GT, Shelby GT, V6 | 6 Cyl 3.7 L GAS, 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS
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Ford Mustang Rear Main Seal Part Number: F5TZ-6701-A
$31.53 MSRP: $44.72
You Save: $13.19 (30%)
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Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil; Engine Crankshaft Seal, Rear; Crankshaft Seal; Rear Seal; Oil Pan Rear Seal; Engine Crankshaft Seal
- Position: Rear
- Replaces: F77Z-6701-AA, D7RZ-6701-A, F77Z-6701-BA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2010 Ford Mustang | Base | 6 Cyl 4.0 L GAS
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Ford Mustang Rear Main Seal Part Number: F4AZ-6701-A
$29.36 MSRP: $41.65
You Save: $12.29 (30%)
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Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil; Engine Crankshaft Seal, Rear; Timing Cover Gasket; Timing Cover Seal; Oil Seal; Crankshaft Seal; Rear Seal; Timing Cover Seal; Oil Pan Seal.
- Position: Rear
- Replaces: F3AZ-6701-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1996-2014 Ford Mustang | Bullitt, GT, GT Bullitt, Mach 1, Shelby GT, 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 Mustang Rear Main Seal Retainer Part Number: BR3Z-6K301-B
$46.65 MSRP: $66.73
You Save: $20.08 (31%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Retainer - Crankshaft Oil Seal
- Replaces: BR3Z-6K301-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2011-2020 Ford Mustang | Boss 302, GT, GT 50 Years Limited Edition, GT Premium, Shelby GT350, Shelby GT350R | 8 Cyl 5.0 L GAS, 8 Cyl 5.2 L GAS
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Ford Mustang Rear Main Seal Part Number: JR3Z-6701-A
$13.59 MSRP: $19.62
You Save: $6.03 (31%)
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Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil; Engine Crankshaft Seal, Rear; Rear Seal; Crankshaft Seal
- Position: Rear
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2018-2023 Ford Mustang | Bullitt, GT, GT Premium, Mach 1 | 8 Cyl 5.0 L GAS
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Ford Mustang Rear Main Seal Part Number: AT4Z-6701-A
$34.92 MSRP: $50.83
You Save: $15.91 (32%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil; Engine Crankshaft Seal, Rear; Crankshaft Seal; Rear Seal; Engine Crankshaft Seal
- Position: Rear
- Replaces: 7T4Z-6701-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2011-2017 Ford Mustang | Base, Boss 302, GT, GT 50 Years Limited Edition, GT Premium, V6 | 6 Cyl 3.7 L GAS, 8 Cyl 5.0 L GAS
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Ford Mustang Rear Main Seal Retainer Part Number: 6C3Z-6K301-A
$45.47 MSRP: $66.18
You Save: $20.71 (32%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Retainer - Crankshaft Oil Seal; Oil Pan Rear Seal
- Manufacturer Note: Gasket Is RTV. Refer To Workshop Manual For Proper Specs
- Replaces: 3L3Z-6K301-AA, 3L3Z-6K301-CA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2014 Ford Mustang | GT, Shelby GT, Shelby GT500, Shelby GT500KR | 8 Cyl 4.6 L GAS, 8 Cyl 5.4 L GAS, 8 Cyl 5.8 L GAS
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Ford Mustang Crankshaft Seal, Front Part Number: XW4Z-6700-B
$11.57 MSRP: $16.42
You Save: $4.85 (30%)
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Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil - Front; Engine Crankshaft Seal, Front; Timing Cover Gasket; Timing Cover Seal; Front Crank Seal; Front Seal; Front Cover Seal; Crankshaft Seal Gasket; Engine Crankshaft Seal
- Position: Front
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2011-2020 Ford Mustang | Boss 302, GT, GT 50 Years Limited Edition, GT Premium, Shelby GT350, Shelby GT350R | 8 Cyl 5.0 L GAS, 8 Cyl 5.2 L GAS
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Ford Mustang Rear Main Seal Part Number: F1SZ-6701-A
$46.60 MSRP: $66.67
You Save: $20.07 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil; Engine Crankshaft Seal, Rear; Timing Cover Gasket; Timing Cover Seal; Oil Seal; Crankshaft Seal; Rear Seal; Timing Cover Oil Seal; Engine Crankshaft Seal
- Position: Rear
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1992-2004 Ford Mustang | Base, GT, GTS, LX, SVT Cobra, SVT Cobra R | 6 Cyl 3.8 L GAS, 6 Cyl 3.9 L GAS, 8 Cyl 5.0 L GAS
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Ford Mustang Rear Main Seal Part Number: 6L3Z-6K301-AA
$39.80 MSRP: $57.93
You Save: $18.13 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Retainer - Crankshaft Oil Seal; Crankshaft Seal; Rear Main Seal Retainer
- Replaces: 3L3Z-6K301-BA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2010 Ford Mustang | Bullitt, GT, Shelby GT | 8 Cyl 4.6 L GAS
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Ford Mustang Rear Main Seal Part Number: E5ZZ-6701-A
$15.53 MSRP: $21.14
You Save: $5.61 (27%)
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Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil; Engine Crankshaft Seal; Crankshaft Seal
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1991-1993, 1984-1987 Ford Mustang | GT, GT-350 20th Anniversary, L, LX, SVO | 4 Cyl 2.3 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS
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Ford Mustang Rear Main Seal Part Number: 1S7Z-6A321-B
$59.56 MSRP: $86.70
You Save: $27.14 (32%)
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Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil; Engine Crankshaft Seal, Rear; Crankshaft Seal; Rear Seal; Rear Main Seal Retainer
- Position: Rear
- Replaces: 1S7Z-6D309-AA, 1S7Z-6K301-AA, 1S7Z-6K301-BA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2015-2023 Ford Mustang | EcoBoost, EcoBoost Premium | 4 Cyl 2.3 L GAS
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Ford Mustang Rear Main Seal Part Number: KR3Z-6701-A
$88.92 MSRP: $129.43
You Save: $40.51 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil; Engine Crankshaft Seal, Rear; Crankshaft Seal
- Position: Rear
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2020-2022 Ford Mustang | Shelby GT500 | 8 Cyl 5.2 L GAS
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Ford Mustang Oil Seal, Front Part Number: CM5Z-6700-E
$8.94 MSRP: $12.68
You Save: $3.74 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil - Front; Engine Crankshaft Seal; Timing Cover Gasket & Seal.; Front Crank Seal; Front Seal; Front Cover Seal; Timing Cover Front Seal
- Position: Front
- Replaces: 1S7Z-6700-AA, CM5Z-6700-C, 9E5Z-6700-A, CM5Z-6700-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2015-2023 Ford Mustang | EcoBoost, EcoBoost Premium | 4 Cyl 2.3 L GAS
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Ford Mustang Rear Main Seal Part Number: GR3Z-6701-A
$48.31 MSRP: $69.12
You Save: $20.81 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil; Engine Crankshaft Seal, Rear; Crankshaft Seal
- Position: Rear
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2015-2020 Ford Mustang | Shelby GT350, Shelby GT350R | 8 Cyl 5.2 L GAS
View related parts
Ford Mustang Rear Main Seal Retainer Part Number: JR3Z-6K301-A
$48.83 MSRP: $69.85
You Save: $21.02 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Retainer - Crankshaft Oil Seal
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2018-2023 Ford Mustang | Bullitt, GT, GT Premium, Mach 1, Shelby GT500 | 8 Cyl 5.0 L GAS, 8 Cyl 5.2 L GAS

Ford Mustang Crankshaft Seal

OEM Crankshaft 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 Crankshaft Seal with long life and a perfect fit. Come to our website and find genuine Ford Mustang parts. We keep a wide inventory of OEM Mustang 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.

One of the parts in Ford Mustang cars is called the Crankshaft Seal which is situated at the front part of the vehicle's engine and whose main function is to keep oil from leaking out of the crankcase. Made from metal and rubber, this round seal is often placed to enable the performance of adequate lubrication within an engine in a bid to reduce friction as well as decrease wear as far as metallic components of an engine are concerned. For years, there are many kinds of Crankshaft Seals used in the Ford Mustang models, nonetheless, the main job has not changed. Whenever there is a problem with the Crankshaft Seal, it is manifested with oil leakage and poor performance especially when the car has many miles on the road showing that it needs replacement for efficient engine performance.

Ford Mustang Crankshaft Seal Parts and Q&A

Rear Main Seal Retainer
6C3Z-6K301-A
Q: How to Service and Repair the Rear Crankshaft Seal on Ford Mustang?
A:
Exchanging and fixing the crankshaft rear seal requires starting with the removal of the flexplate or Flywheel and then removing the spacer plate. A completed original crankshaft rear seal operates without a speedy sleeve although this feature exists in a new replacement seal. The removal of a metal speedy sleeve requires two screwdrivers or small pry bars to continue with any operation. You need to use Oil Seal Remover since it will help prevent damage to the crankshaft rear seal running surface when performing the removal step. Installation of the new crankshaft rear seal requires you to keep the provided speedy sleeve attached to the seal. Preparatively clean the crankshaft rear sealing surface with extra-fine emery cloth while using 0000 steel wool followed by applying clean engine oil to lubricate the crankshaft rear oil seal. Position the crankshaft rear seal with its speedy sleeve encircling the screws and adapter before using the Crankshaft Rear Oil Seal Installer to put the seal into place. The replacement process ends with the reinstallation of the flexplate-to-crankshaft spacer and spacer plate and flexplate or flywheel.
Oil Seal, Front
XW4Z-6700-AA
Q: How to service the front crankshaft seal on Ford Mustang?
A:
Service of the front crankshaft seal starts by eliminating the crankshaft pulley. The Crankshaft Front Oil Seal Remover will extract and dispose of the existing crankshaft front seal. Before installing the new front seal the surface needs engine oil application. The Front Cover Aligner and Crankshaft Vibration Damper Installer should be used for correct installation of the new crankshaft front seal. Finally, reinstall the crankshaft pulley.