How to install piston and connecting rod assemblies on Mercury Grand Marquis?

It is important that prior to the fitting of piston and its respective connecting rod, the cylinder walls should be of superb state of cleanliness and the top edge of each cylinder should be chamfered and the crankshaft should be fitted in place. Nuts and washers are to be taken off the first connecting rod, and from the marks made while doing so, the cap is to be removed; cleaning the bearing surfaces of the connecting rod with a lint-free material. The new upper bearing insert has to be press fitted into the connecting rod with its bearing tab being located in the respective recess without resorting to the use of lubrication. Do the same for the rod cap but ensure that you make sure that you are clean. Allign the piston ring gap on piston and for 5.0L engine put the hose over each of the connecting rod bolt. Coat the piston along with the rings with fresh engine oil, fit the piston ring compressor, and then drop the piston into the cylinder with the skirt just proud. Take the crankshaft and align the bottom end of the number one connecting rod journal and lubricate the cylinder bore. Put the piston/connecting rod assembly in the cylinder bore so that the notches of the piston face the front side of the engine and very lightly hit the ring compressor on the block. Lightly knock the piston into place with the wooden hammer handle while holding the connecting rod over the crankshaft journal and ensuring that any force used does not conform the piston or rings. After the installation of the connecting rod, the bearing oil clearance should be checked with Plastigage and the crushed width must be compared with the scale. Scrub with a cloth any Plastigage that remains on the rod journal and the bearing face, then cover the journal with a layer of moly-base grease or engine assembly lube, replace the connecting rod and its cap, and tighten the nuts or bolts to the required degree of twist. The same procedure will be followed until all the pistons and connecting rods will be set; the bearing inserts as well as the connecting rods must be clean, the assembly order must match the cylinder, the cylinder walls, and the bearing faces will be lubricated. Once all the assemblies are fitted, turn the crankshaft by hand and make sure that it does not bind; then check the connecting rod small end clearance to specifications and correct the difference by reboring the rods.

Genuine Mercury Grand Marquis Piston

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Mercury Grand Marquis Piston
Part Number: F3AZ-6108-CB
$21.81 MSRP: $29.81
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Product Specifications
- Manufacturer Note: .50mm/.020" oversize
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1992-1994 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT, 4AT AOD, 4AT AODE
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Mercury Grand Marquis Piston
Part Number: E9TZ-6108-DB
$19.28 MSRP: $26.34
You Save: $7.06 (27%)
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Product Specifications
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1985-1989 Mercury Grand Marquis | 8 Cyl 5.0L, 8 Cyl 5.8L | 4AT AOD
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Mercury Grand Marquis Piston And Pin Assembly
Part Number: 2L2Z-6108-HA
$21.97 MSRP: $30.52
You Save: $8.55 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Piston And Pin Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
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Mercury Grand Marquis Piston & Pin Assembly
Part Number: F2ZZ6108DB
$27.08 MSRP: $37.62
You Save: $10.54 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Piston And Pin Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1986-1989 Mercury Grand Marquis | 8 Cyl 5.0L, 8 Cyl 5.8L | 4AT AOD
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Mercury Grand Marquis Piston And Pin Assembly
Part Number: 8L2Z-6108-E
$40.83 MSRP: $58.67
You Save: $17.84 (31%)
Product Specifications
- Other Name: Piston And Pin Assy; Piston
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008-2011 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 Piston And Pin Assembly
Part Number: F8AZ-6108-BA
Product Specifications
- Other Name: Piston And Pin Assy; Piston
- Replaced by: 8L2Z-6108-G
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1998-2000 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
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Mercury Grand Marquis Piston And Connecting Rod Assy
Part Number: 2L2Z-6100-AA
Product Specifications
- Replaced by: 7L2Z-6100-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2002-2003 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
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Mercury Grand Marquis Piston And Pin Assembly
Part Number: XR3Z-6108-JA
Product Specifications
- Other Name: Piston And Pin Assy
- 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 Piston And Pin Assembly
Part Number: XR3Z-6108-HA
Product Specifications
- Other Name: Piston And Pin Assy
- Replaced by: 2C5Z-6108-AB
- 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
View related parts
Mercury Grand Marquis Piston And Pin Assembly
Part Number: XR3Z-6108-GA
Product Specifications
- Other Name: Piston And Pin Assy
- 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
View related parts
Mercury Grand Marquis Piston And Pin Assembly
Part Number: F8AZ-6108-AA
Product Specifications
- Other Name: Piston And Pin Assy; Piston
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1998-2000 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
View related parts
Mercury Grand Marquis Piston And Pin Assembly
Part Number: F5AZ-6108-BA
Product Specifications
- Other Name: Piston And Pin Assy
- Replaced by: 8L2Z-6108-G
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1995-1997 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT, 4AT 4R70W, 4AT AODE
View related parts
Mercury Grand Marquis Piston And Pin Assembly
Part Number: F5AZ-6108-A
Product Specifications
- Other Name: PISTON AND PIN ASY
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1992-1997 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT, 4AT 4R70W, 4AT AOD, 4AT AODE
View related parts
Mercury Grand Marquis Piston & Pin Assembly
Part Number: F2ZZ6108FB
Product Specifications
- Other Name: Piston And Pin Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1986-1989 Mercury Grand Marquis | 8 Cyl 5.0L, 8 Cyl 5.8L | 4AT AOD
View related parts
Mercury Grand Marquis Piston & Pin Assembly
Part Number: F2ZZ6108EB
Product Specifications
- Other Name: Piston And Pin Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1986-1989 Mercury Grand Marquis | 8 Cyl 5.0L, 8 Cyl 5.8L | 4AT AOD
View related parts
Mercury Grand Marquis Piston & Pin Assembly
Part Number: E9TZ6108BB
Product Specifications
- Other Name: Piston And Pin Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1985-1989 Mercury Grand Marquis | 8 Cyl 5.0L, 8 Cyl 5.8L | 4AT AOD
View related parts
Mercury Grand Marquis PISTON AND PIN ASY
Part Number: E9TZ6108AB
Product Specifications
- Other Name: Piston
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1985-1989 Mercury Grand Marquis | 8 Cyl 5.0L, 8 Cyl 5.8L | 4AT AOD
View related parts
Mercury Grand Marquis Piston
Part Number: E6TZ-6108-FB
Product Specifications
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1980-1985 Mercury Grand Marquis | 8 Cyl 4.2L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT, 3AT C4, 3AT C6, 4AT AOD
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Mercury Grand Marquis Piston
Part Number: 8L2Z-6108-F
Product Specifications
- Replaces: 2L2Z-6108-GA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2011 Mercury Grand Marquis | 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI | 4-Speed Automatic Transmission 4R75E Livonia, 4AT 4R70W, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Mercury Grand Marquis Piston And Pin Assembly
Part Number: 2L2Z-6108-NA
Product Specifications
- Other Name: Piston And Pin Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2008 Mercury Grand Marquis | 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI | 4AT 4R70W, 4-Speed Automatic Transmission 4R75E Livonia, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)

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Mercury Grand Marquis Piston

The Piston of the Mercury Grand Marquis converts the explosive energy inside each cylinder into the rotating force which turns the wheels, giving the full-size sedan its dependable push. Throughout its years of production, Mercury maintained the objective, allowing each Grand Marquis to feature an aluminum alloy Piston that is lightweight yet strong enough to withstand intense combustion. The factory cast pieces were later offered with performance trims which were forged or billet aluminum. Each Piston style delivers tighter grain structure, better heat resistance, and offers skirt coatings that cut scuffing. Each Piston benefits from precise machining for perfect balance. Rings, regardless of their type, create a seal between the Piston and the cylinder wall. The forged steel I-beam or the lighter yet stronger H-beam connect the Piston to the crankshaft via floating wrist pins, upgrades that replaced older cast iron parts. Thinner duplex coated rings that reduce drag and improve sealing are applied in newer models of Mercury. Therefore, it keeps the Grand Marquis smooth at highway speed, extending engine life too. Thus, it preserves the trusted Grand Marquis reputation among Mercury enthusiasts.

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

Piston
2C5Z-6108-BB
Q: How to install piston and connecting rod assemblies on Mercury Grand Marquis?
A:
It is important that prior to the fitting of piston and its respective connecting rod, the cylinder walls should be of superb state of cleanliness and the top edge of each cylinder should be chamfered and the Crankshaft should be fitted in place. Nuts and washers are to be taken off the first connecting rod, and from the marks made while doing so, the cap is to be removed; cleaning the bearing surfaces of the connecting rod with a lint-free material. The new upper bearing insert has to be press fitted into the connecting rod with its bearing tab being located in the respective recess without resorting to the use of lubrication. Do the same for the rod cap but ensure that you make sure that you are clean. Allign the piston ring gap on piston and for 5.0L engine put the hose over each of the connecting rod bolt. Coat the piston along with the rings with fresh engine oil, fit the piston ring compressor, and then drop the piston into the cylinder with the skirt just proud. Take the crankshaft and align the bottom end of the number one connecting rod journal and lubricate the cylinder bore. Put the piston/connecting rod assembly in the cylinder bore so that the notches of the piston face the front side of the engine and very lightly hit the ring compressor on the block. Lightly knock the piston into place with the wooden hammer handle while holding the connecting rod over the crankshaft journal and ensuring that any force used does not conform the piston or rings. After the installation of the connecting rod, the bearing oil clearance should be checked with Plastigage and the crushed width must be compared with the scale. Scrub with a cloth any Plastigage that remains on the rod journal and the bearing face, then cover the journal with a layer of moly-base grease or engine assembly lube, replace the connecting rod and its cap, and tighten the nuts or bolts to the required degree of twist. The same procedure will be followed until all the pistons and connecting rods will be set; the bearing inserts as well as the connecting rods must be clean, the assembly order must match the cylinder, the cylinder walls, and the bearing faces will be lubricated. Once all the assemblies are fitted, turn the crankshaft by hand and make sure that it does not bind; then check the connecting rod small end clearance to specifications and correct the difference by reboring the rods.