How to remove and reinstall the oil pump assembly on Mercury Grand Marquis?

Unbolt and lower the oil pan. Remove the oil pick-up tube-to-main bearing cap nut. Remove the oil pump pick-up tube mounting bolts and the two bolts to detach the oil pick-up tube. Remove the oil pump mounting bolts and lower the oil pump assembly into the oil pan, lifting them all out together. If the pump is faulty or suspected to be faulty, install a new one instead of attempting to repair the original. Prime the oil pump prior to installation by pouring clean oil into the pick-up and turning the pump shaft by hand. If the pump is separated from the pick-up tube, use a new gasket and tighten the bolts securely when reattaching them. As the pump is reinstalled, fit the oil pump driveshaft into the pump, ensuring it seats all the way without forcing it; if it doesn't align, turn the pump slightly and try again. Install the mounting bolts/nut and tighten them to the specified torque.

Genuine Mercury Grand Marquis Oil Pump

Oil Fluid Pump

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12 Oil Pumps found

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Mercury Grand Marquis Oil Pump Assembly
Part Number: 7L3Z-7A103-A
$804.88 MSRP: $1118.11
You Save: $313.23 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assembly - Oil
- Replaces: 3L3Z-7A103-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2008 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 Oil Pump Assembly
Part Number: 5L3Z-6600-AA
$127.68 MSRP: $186.67
You Save: $58.99 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assy - Oil
- Replaced by: 5L3Z-6600-A
- 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 Oil Pump Assembly
Part Number: F8AZ-6600-AA
$127.68 MSRP: $186.67
You Save: $58.99 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assy - Oil
- Replaced by: 5L3Z-6600-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1998-2006 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
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Mercury Grand Marquis Oil Pump Assembly
Part Number: 9C2Z-7A103-A
$997.74 MSRP: $1483.17
You Save: $485.43 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assy - Oil
- 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)
View related parts
Mercury Grand Marquis Oil Pump Assembly
Part Number: 3L3Z-7A103-B
$804.88 MSRP: $1118.11
You Save: $313.23 (29%)
ADD TO CART
Product Specifications
- Other Name: Pump Assy - Oil
- Replaced by: 7L3Z-7A103-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007 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)
View related parts
Mercury Grand Marquis Pump Assembly Oil
Part Number: EOAZ7A103A
$140.89 MSRP: $192.51
You Save: $51.62 (27%)
ADD TO CART
Product Specifications
- Other Name: Pump Assy - Oil
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1980-1992 Mercury Grand Marquis | 8 Cyl 4.2L, 8 Cyl 4.6L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT, 3AT C4, 3AT C6, 4AT, 4AT AOD, 4AT AODE
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Mercury Grand Marquis Oil Pump
Part Number: E63Z6600A
$10.39 MSRP: $14.44
You Save: $4.05 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Pump Assy - Oil
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1984-1989 Mercury Grand Marquis | 8 Cyl 5.0L, 8 Cyl 5.8L | 4AT AOD
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Mercury Grand Marquis Oil Pump Assembly
Part Number: F8OZ-6600-AA
$174.42 MSRP: $255.00
You Save: $80.58 (32%)
Product Specifications
- Other Name: Pump Assembly - Oil; Oil Pump
- Replaces: F7LZ-6600-AA, F5LY-6600-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2006 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
View related parts
Mercury Grand Marquis Oil Pump Assembly
Part Number: D9AZ-6600-A
Product Specifications
- Other Name: Pump Assy - Oil; Oil Pump
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1980-1989 Mercury Grand Marquis | 8 Cyl 4.2L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT, 3AT C4, 3AT C6, 4AT AOD
View related parts
Mercury Grand Marquis Oil Pump Assembly
Part Number: F4AZ-7A103-A
Product Specifications
- Other Name: Pump Assy - Oil
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1996-2003 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
- 1992 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT, 4AT AOD, 4AT AODE
View related parts
Mercury Grand Marquis Oil Pump Assembly
Part Number: F3ZZ-6600-A
Product Specifications
- Other Name: Pump Assy - Oil; Oil Pump
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1985-1988 Mercury Grand Marquis | 8 Cyl 5.0L, 8 Cyl 5.8L | 4AT AOD
View related parts
Mercury Grand Marquis Oil Pump Assembly
Part Number: C2OZ-6600-A
Product Specifications
- Other Name: Pump Assy - Oil; Oil Pump
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1980-1991 Mercury Grand Marquis | 8 Cyl 4.2L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT, 3AT C4, 3AT C6, 4AT AOD

Mercury Grand Marquis Oil Pump

The Oil Pump within Mercury Grand Marquis vehicles functions to distribute pressure-laden oil fluid that maintains lubrication and keeps engine components such as bearings and pistons cooled. The device contains multiple components made from gears and springs which combine to provide effective oil circulation. The Oil Pump uses three different mechanism types of direct drive along with gear drive and chain drive which perform according to specific installation and operational requirements. Engine builders should inspect the Oil Pump continuously along with performing maintenance checks which must include an assessment of gear damage and verification of the gear clearances. Engine damage prevention requires monitoring of oil pressure because it controls the effectiveness of the oiling system. High-performance variants need advanced dry sump systems that serve as superior lubrication methods to handle their elevated requirements. The maintenance of an Mercury Grand Marquis Oil Pump stands vital to preserve both the engine life and operational capability of the Mercury Grand Marquis motor.

We provide a wide range of Mercury Grand Marquis Oil Pump at the optimal prices. If you need Mercury Grand Marquis Oil Pump, 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 Oil Pump Parts Questions & Experts Answers

Oil Pump Assembly
F8AZ-6600-AA
Q: How to remove and reinstall the oil pump assembly on Mercury Grand Marquis?
A:
Unbolt and lower the Oil Pan. Remove the oil pick-up tube-to-main bearing cap nut. Remove the oil pump pick-up tube mounting bolts and the two bolts to detach the oil pick-up tube. Remove the oil pump mounting bolts and lower the oil pump assembly into the oil pan, lifting them all out together. If the pump is faulty or suspected to be faulty, install a new one instead of attempting to repair the original. Prime the oil pump prior to installation by pouring clean oil into the pick-up and turning the pump shaft by hand. If the pump is separated from the pick-up tube, use a new gasket and tighten the bolts securely when reattaching them. As the pump is reinstalled, fit the oil pump driveshaft into the pump, ensuring it seats all the way without forcing it; if it doesn't align, turn the pump slightly and try again. Install the mounting bolts/nut and tighten them to the specified torque.