How to remove and install the crankshaft seal on the Mercury Grand Marquis?

Remove the bolts attaching the fan shroud to the radiator and position the shroud back over the fan. Next, detach the fan/clutch assembly and the shroud. Remove the drivebelts, then take off the bolt from the front of the crankshaft and use a puller to detach the vibration damper, ensuring the puller grips only the hub. Clean the crankshaft nose and the seal contact surface on the vibration damper, leaving the Woodruff key in place. The crankshaft front oil seal can be removed using a special tool or carefully with a small chisel and hammer, taking care not to damage the cover or crankshaft. If the engine has high mileage, apply penetrating oil to the seal-to-cover joint before removal. Check the seal bore and crankshaft for nicks and burrs, then position the new seal in the bore with the open end facing inward, applying a small amount of oil to ease installation. The seal can be reinstalled using a special tool or by driving it into the bore with a large socket and hammer until fully seated, ensuring not to damage the seal. If installing a new vibration damper, ensure balance pins are in the same positions as the original and apply clean engine oil to the seal contact surface. Install the damper on the crankshaft, aligning the keyway with the Woodruff key, and if necessary, tap it into place with a soft-face hammer. Reinstall the remaining parts and check for leaks after starting the engine. For the timing chain cover, remove it and drive the seal out from the back side, supporting the cover to avoid distortion. Clean the bore, position the new seal with the open end facing inward, and drive it into place until fully seated. For the rear main oil seal, remove the transmission, driveplate, and rear cover plate, then pry out the old seal carefully, noting its recess depth. Clean the crankshaft and seal bore, checking for damage, and apply a thin coat of engine oil to the new seal's outer edge. Press the new seal squarely into the bore, avoiding hammering directly, and reinstall the engine rear cover plate, driveplate, and transmission.

Genuine Mercury Grand Marquis Crankshaft Seal

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9 Crankshaft Seals found

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Mercury Grand Marquis Crankshaft Oil Seal Retainer
Part Number: 6L3Z-6K301-AA
$40.83 MSRP: $58.67
You Save: $17.84 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Retainer - Crankshaft Oil Seal; Rear Main Seal, Rear Main Seal Retainer
- Replaces: 3L3Z-6K301-BA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2011 Mercury Grand Marquis | 8 Cyl 4.6L Romeo SOHC EFI | 4-Speed Automatic Transmission 4R75E Livonia, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Mercury Grand Marquis Crankshaft Oil Seal Assembly
Part Number: F4AZ-6701-A
$33.74 MSRP: $49.33
You Save: $15.59 (32%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Seal Assy - Crankshaft Oil
- Replaces: F3AZ-6701-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1992-2011 Mercury Grand Marquis | 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI | 4-Speed Automatic Transmission 4R75E Livonia, 4AT, 4AT 4R70W, 4AT AOD, 4AT AODE, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Mercury Grand Marquis Seal Assembly - Crankshaf
Part Number: F3AZ-6701-B
$33.74 MSRP: $49.33
You Save: $15.59 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal Assy - Crankshaft Oil
- Replaced by: F4AZ-6701-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2011 Mercury Grand Marquis | 8 Cyl 4.6L Romeo SOHC EFI | 4-Speed Automatic Transmission 4R75E Livonia, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Mercury Grand Marquis Crankshaft Oil Seal Assembly
Part Number: F1SZ-6701-A
$18.49 MSRP: $26.33
You Save: $7.84 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal Assy - Crankshaft Oil
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1987-1991 Mercury Grand Marquis | 8 Cyl 5.0L, 8 Cyl 5.8L | 4AT AOD
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Mercury Grand Marquis Miscellaneous Hardware
Part Number: F5RZ-6397-D
$2.93 MSRP: $5.00
You Save: $2.07 (42%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Hardware - Miscellaneous
- Replaced by: -W701228-S300
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1992-2006 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT, 4AT 4R70W, 4AT AOD, 4AT AODE
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Mercury Grand Marquis Crankshaft Oil Seal Assembly
Part Number: E8DZ-6701-A
$24.45 MSRP: $34.83
You Save: $10.38 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal Assy - Crankshaft Oil
- Replaced by: F37Z-6701-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1981-1989 Mercury Grand Marquis | 8 Cyl 4.2L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT, 4AT AOD
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Mercury Grand Marquis Crankshaft Oil Seal Assembly
Part Number: E5ZZ-6701-A
Product Specifications
- Other Name: Seal Assy - Crankshaft Oil; Rear Main Seal
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1982-1987 Mercury Grand Marquis | 8 Cyl 4.2L, 8 Cyl 5.0L, 8 Cyl 5.8L | 4AT AOD
View related parts
Mercury Grand Marquis Crankshaft Oil Seal Assembly
Part Number: F1TZ-6701-A
Product Specifications
- Other Name: Seal Assy - Crankshaft Oil; Rear Main Seal, Rear Seal
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1983-1989 Mercury Grand Marquis | 8 Cyl 5.0L, 8 Cyl 5.8L | 4AT AOD
View related parts
Mercury Grand Marquis Seal Assembly Crankshaft Oil
Part Number: F1CZ6701B
Product Specifications
- Other Name: Seal Assy - Crankshaft Oil; Front Cover Seal, Rear Main Seal
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1987-1989 Mercury Grand Marquis | 8 Cyl 5.0L, 8 Cyl 5.8L | 4AT AOD

Mercury Grand Marquis Crankshaft Seal

The purpose of a Mercury Grand Marquis Crankshaft Seal is to seal the front of the crankshaft at the engine's front end to contain oil in the crankcase. This allows the engine components to remain lubricated. The Crankshaft Seal is located at the front of the engine where the rotating shaft passes through the housing and creates a tight seal, preventing oil loss while permitting the shaft's rotation. In most configurations, the component comprises a round metal ring that is attached to a flexible rubber lip. Further, this rubber lip presses against the crankshaft surface and forms a dynamic seal. This assembly maintains contact during operation. Moreover, the assembly can also resist the heat and motion generated inside the assembly. The Crankshaft Seal minimizes friction and limits wear on moving parts by preventing leakage of oil. Signs that the Crankshaft Seal is worn out would be leaking oil and accumulating mileage that suggests material fatigue. The Grand Marquis Crankshaft Seal helps in efficient lubrication for Mercury drivers. Replacement ensures proper sealing for Mercury Grand Marquis engines. The Crankshaft Seal is a simple yet critical piece in every Mercury Grand Marquis powerplant.

We provide a wide range of Mercury Grand Marquis Crankshaft Seal at the optimal prices. If you need Mercury Grand Marquis Crankshaft 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.

Mercury Grand Marquis Crankshaft Seal Parts Questions & Experts Answers

Crankshaft Oil Seal Assembly
F4AZ-6701-A
Q: How to remove and install the crankshaft seal on the Mercury Grand Marquis?
A:
Remove the bolts attaching the fan shroud to the radiator and position the shroud back over the fan. Next, detach the fan/clutch assembly and the shroud. Remove the drivebelts, then take off the bolt from the front of the crankshaft and use a puller to detach the vibration damper, ensuring the puller grips only the hub. Clean the crankshaft nose and the seal contact surface on the vibration damper, leaving the Woodruff key in place. The crankshaft front oil seal can be removed using a special tool or carefully with a small chisel and hammer, taking care not to damage the cover or crankshaft. If the engine has high mileage, apply penetrating oil to the seal-to-cover joint before removal. Check the seal bore and crankshaft for nicks and burrs, then position the new seal in the bore with the open end facing inward, applying a small amount of oil to ease installation. The seal can be reinstalled using a special tool or by driving it into the bore with a large socket and hammer until fully seated, ensuring not to damage the seal. If installing a new vibration damper, ensure balance pins are in the same positions as the original and apply clean engine oil to the seal contact surface. Install the damper on the crankshaft, aligning the keyway with the Woodruff key, and if necessary, tap it into place with a soft-face hammer. Reinstall the remaining parts and check for leaks after starting the engine. For the timing chain cover, remove it and drive the seal out from the back side, supporting the cover to avoid distortion. Clean the bore, position the new seal with the open end facing inward, and drive it into place until fully seated. For the rear main oil seal, remove the transmission, driveplate, and rear cover plate, then pry out the old seal carefully, noting its recess depth. Clean the crankshaft and seal bore, checking for damage, and apply a thin coat of engine oil to the new seal's outer edge. Press the new seal squarely into the bore, avoiding hammering directly, and reinstall the engine rear cover plate, driveplate, and transmission.