How should the piston ring end gaps be checked and the rings installed on Mercury Grand Marquis?

When the service of replacing the piston rings is being done ensure that while installing the new piston rings the following are done; The ring end gaps and the piston ring side clearance must have been checked. Place the piston/connecting rod assemblies and the new ring sets on the engine counterparts of the piston and cylinder while taking the end gap measurement before the assembly of the engine. Place the first cylinder in a manner perpendicular to the cylinder walls, by forcing its top ring with the top of the piston in near the bottom of the cylinder. To determine the end gap, place feeler gauges across the ends of the ring and continue adjusting until the ring moves with resistance, but does not jam. Check the measured gap against the requirement; if need be check on the right rings to be used. End gap is again not a concern if it is not over 0.040-inch and check for interchangeability of the rings wit the engine. Do the same for all the rings in the first cylinder and the subsequent cylinders making sure that you maintain rings, pistons, and cylinders pairs. When the end gaps are set, assemble the rings on the pistons in the following order: oil control ring made of three parts. The spacer/expander should be fit into the groove; next, under pressure to avoid any injury, the side rail, then the lower side rail, then the upper side rail. After the installation of the oil ring components, the side rails must be rotated freely on both grooves. Then, place the middle ring on and make sure that the identification mark is up and use the piston ring installation tool in such a way that you do not expand the ring. Last, insert the top ring to the piston in the same way, making a mark on it facing up and go on the next pistons and their rings.

Genuine Mercury Grand Marquis Piston Ring Set

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23 Piston Ring Sets found

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Mercury Grand Marquis Kit - Piston Ring
Part Number: 6L3Z-6148-A
$34.43 MSRP: $50.33
You Save: $15.90 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Piston Ring, Piston Ring Set
- Replaces: 2L3Z-6148-GA, 2L3Z-6148-LA, 2L3Z-6148-AA, 2L3Z-6148-DA, F5AZ-6148-A, F7AZ-6148-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1995-2011 Mercury Grand Marquis | 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI | 4-Speed Automatic Transmission 4R75E Livonia, 4AT, 4AT 4R70W, 4AT AODE, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Mercury Grand Marquis Kit - Piston Ring
Part Number: 2L3Z-6148-AA
$34.43 MSRP: $50.33
You Save: $15.90 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaced by: 6L3Z-6148-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1996 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
View related parts
Mercury Grand Marquis Kit - Piston Ring
Part Number: 2L3Z-6148-GA
$34.43 MSRP: $50.33
You Save: $15.90 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaced by: 6L3Z-6148-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2002-2006 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
View related parts
Mercury Grand Marquis Kit - Piston Ring
Part Number: 2L3Z-6148-DA
$34.43 MSRP: $50.33
You Save: $15.90 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaced by: 6L3Z-6148-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2001-2002 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
View related parts
Mercury Grand Marquis Kit - Piston Ring
Part Number: F7AZ-6148-CA
$32.01 MSRP: $43.74
You Save: $11.73 (27%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1995-2000 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT, 4AT 4R70W, 4AT AODE
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Mercury Grand Marquis Engine Piston Ring
Part Number: E4FZ6148A
$24.57 MSRP: $33.57
You Save: $9.00 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Piston Ring
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1981-1985 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 Kit - Piston Ring
Part Number: 2L3Z-6148-CA
$151.80 MSRP: $230.00
You Save: $78.20 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 6L3Z-6148-C
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1996 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
View related parts
Mercury Grand Marquis Kit - Piston Ring
Part Number: 2L3Z-6148-FA
$151.80 MSRP: $230.00
You Save: $78.20 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 6L3Z-6148-C
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2001-2002 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
View related parts
Mercury Grand Marquis Kit - Piston Ring
Part Number: 2L3Z-6148-JA
$151.80 MSRP: $230.00
You Save: $78.20 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 6L3Z-6148-C
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2002-2006 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
View related parts
Mercury Grand Marquis Kit - Piston Ring
Part Number: 2L3Z-6148-NA
$151.80 MSRP: $230.00
You Save: $78.20 (34%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Manufacturer Note: 0.50MM O/S
- Replaced by: 6L3Z-6148-C
- 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)
View related parts
Mercury Grand Marquis Kit - Piston Ring
Part Number: F7AZ-6148-AA
$34.43 MSRP: $50.33
You Save: $15.90 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaced by: 6L3Z-6148-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1997-2000 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
View related parts
Mercury Grand Marquis Kit - Piston Ring
Part Number: F5AZ-6148-A
$34.43 MSRP: $50.33
You Save: $15.90 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaced by: 6L3Z-6148-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1995-1996 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT, 4AT 4R70W, 4AT AODE
View related parts
Mercury Grand Marquis Kit - Piston Ring
Part Number: 2L3Z-6148-BA
$125.36 MSRP: $228.33
You Save: $102.97 (46%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaced by: 6L3Z-6148-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1996 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
View related parts
Mercury Grand Marquis Kit - Piston Ring
Part Number: 2L3Z-6148-HA
$125.36 MSRP: $228.33
You Save: $102.97 (46%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaced by: 6L3Z-6148-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2002-2006 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
View related parts
Mercury Grand Marquis KIT - PISTON RING
Part Number: F2ZZ6148A
$42.68 MSRP: $58.31
You Save: $15.63 (27%)
ADD TO CART
Product Specifications
- Other Name: Piston Ring, Piston Ring Set
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1986-1991 Mercury Grand Marquis | 8 Cyl 5.0L, 8 Cyl 5.8L | 4AT AOD
View related parts
Mercury Grand Marquis Kit - Piston Ring
Part Number: 2F3Z-6148-BA
Product Specifications
- Other Name: Piston Ring
- 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 Kit - Piston Ring
Part Number: 2L3Z-6148-EA
Product Specifications
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2001-2002 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
View related parts
Mercury Grand Marquis Kit - Piston Ring
Part Number: C3AZ-6148-F
Product Specifications
- Other Name: Piston Ring, Piston Ring Set
- 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 Kit Piston Ring
Part Number: E63Z6148C
Product Specifications
- Other Name: Kit - Piston Ring
- 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 Kit Piston Ring
Part Number: F2AZ6148A
Product Specifications
- Other Name: Kit - Piston Ring; Piston Ring
- 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 Ring Set

We provide a wide range of Mercury Grand Marquis Piston Ring Set at the best prices possible. If you need Mercury Grand Marquis Piston Ring Set, you can shop with confidence on our website. All our OEM parts come with a manufacturer's warranty and are delivered to your door step with a fast delivery service.

Mercury Grand Marquis Piston Ring Set Parts Questions & Experts Answers

Kit - Piston Ring
2L3Z-6148-AA
Q: How should the piston ring end gaps be checked and the rings installed on Mercury Grand Marquis?
A: When the service of replacing the Piston rings is being done ensure that while installing the new piston rings the following are done; The ring end gaps and the piston ring side clearance must have been checked. Place the piston/connecting rod assemblies and the new ring sets on the engine counterparts of the piston and cylinder while taking the end gap measurement before the assembly of the engine. Place the first cylinder in a manner perpendicular to the cylinder walls, by forcing its top ring with the top of the piston in near the bottom of the cylinder. To determine the end gap, place feeler gauges across the ends of the ring and continue adjusting until the ring moves with resistance, but does not jam. Check the measured gap against the requirement; if need be check on the right rings to be used. End gap is again not a concern if it is not over 0.040-inch and check for interchangeability of the rings wit the engine. Do the same for all the rings in the first cylinder and the subsequent cylinders making sure that you maintain rings, pistons, and cylinders pairs. When the end gaps are set, assemble the rings on the pistons in the following order: oil control ring made of three parts. The spacer/expander should be fit into the groove; next, under pressure to avoid any injury, the side rail, then the lower side rail, then the upper side rail. After the installation of the oil ring components, the side rails must be rotated freely on both grooves. Then, place the middle ring on and make sure that the identification mark is up and use the piston ring installation tool in such a way that you do not expand the ring. Last, insert the top ring to the piston in the same way, making a mark on it facing up and go on the next pistons and their rings.