How to service the ignition coil-on-plug on Mercury Grand Marquis?

Service of the ignition coil-on-plug begins by removing the air cleaner outlet pipe. First disconnect the connector from the ignition coil then remove the bolt that sustains the ignition coil position. Extract the ignition coil on plug after performing its required steps. Return all steps in the opposite order when installing it.

How to service the ignition coil-on-plug on Mercury Mariner?

The first step to service ignition coil-on-plug includes disconnecting the four electrical connectors from the ignition coils. The removing process of ignition coils requires a twisting movement to detach the seal before extraction. Begin by taking out the four bolts retaining the ignition coils into place. The installation requires tightening the bolts to 8 Nm (71 lb-in). Guardian will inspect coil seals for damages then dispose of any seals discovered to be torn or nicked. Insert new coil seals into each coil component until they reach complete position on the top end. At the conclusion of installation return to the contrary process and spread dielectric grease on the ignition coil boots interiors before reconnecting them to the spark plugs.

OEM Mercury Ignition Coil

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18 Ignition Coils found

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Mercury Ignition Coil Part Number: F5SZ-12029-B
$90.50 MSRP: $148.91
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Product Specifications
- Other Name: Coil Assembly - Ignition; Direct Ignition Coil Oe Quality; Distributor Less Coil; Direct Ignition Coil; Coil Assembly; Coil
- Replaces: F1SZ-12029-A, F5SZ-12029-A
Fits the following Mercury Models:
- Cougar | 1999-2000, 1992-1997, 1989-1990 | LS, V6, XR-7 | 6 Cyl 2.5 L GAS, 6 Cyl 3.8 L GAS
- Mystique | 1995-2000 | Base, GS, GS Spree, LS, LS Young America | 6 Cyl 2.5 L GAS
- Sable | 1996-2000 | G, GS, LS, LS Premium | 6 Cyl 3.0 L GAS
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Mercury Ignition Coil Part Number: 7U2Z-12029-B
$70.39 MSRP: $115.82
You Save: $45.43 (40%)
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Product Specifications
- Other Name: Coil Assembly - Ignition; Direct Ignition Coil Oe Quality; Distributor Less Coil; Direct Ignition Coil; Coil Assembly; Coil
- Replaces: 7U2Z-12029-A, DG-484, F1VY-12029-A, F37Z-12029-A, F5LY-12029-A, F5OY-12029-A, F5OY-12029-B, E8TZ-12029-A, YS4Z-12029-AA
Fits the following Mercury Models:
- Cougar | 1994-1997 | XR-7 | 8 Cyl 4.6 L GAS
- Grand Marquis | 1992-1997 | GS, LS | 8 Cyl 4.6 L GAS
- Mountaineer | 1997-2001 | Base | 8 Cyl 5.0 L GAS
- Tracer | 1991-1999 | Base, GS, LS, Trio | 4 Cyl 1.9 L GAS, 4 Cyl 2.0 L GAS
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Mercury Ignition Coil Part Number: 5F2Z-12029-AD
$82.65 MSRP: $136.00
You Save: $53.35 (40%)
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Product Specifications
- Other Name: Coil Assembly - Ignition; Direct Ignition Coil Oe Quality; Direct Ignition Coil; Coil
- Replaces: 1F2Z-12029-AC
Fits the following Mercury Models:
- Cougar | 2001-2002 | Base, S, V6 | 6 Cyl 2.5 L GAS
- Monterey | 2004-2007 | Base, Convenience, Luxury, Premier | 6 Cyl 4.2 L GAS
- Sable | 2001-2005 | GS, LS, LS Premium, Platinum Edition | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Ignition Coil Part Number: 4M5Z-12029-B
$57.68 MSRP: $94.91
You Save: $37.23 (40%)
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Product Specifications
- Other Name: Coil Assembly - Ignition; Direct Ignition Coil; Direct Ignition Coil Oe Quality; Coil On Plug Coil; Ignition Coil Set; Coil
- Replaces: 4M5Z-12029-BC, DG-507, 4M5Z-12029-A
Fits the following Mercury Models:
- Mariner | 2005-2008 | Base, Convenience, Hybrid | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS
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Mercury Ignition Coil Part Number: F7PZ-12029-AA
$36.98 MSRP: $58.73
You Save: $21.75 (38%)
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Product Specifications
- Other Name: Coil Assembly - Ignition; Coil
- Replaces: F5FZ-12029-A, F32Z-12029-A, F5ZZ-12029-A
Fits the following Mercury Models:
- Capri | 1985-1986 | 5.0, GS, RS | 4 Cyl 2.3 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS
- Cougar | 1984-1997 | Base, LS, XR-7 | 4 Cyl 2.3 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS
- Lynx | 1984-1987 | Base, GL, GS, L, XR3 | 4 Cyl 1.6 L GAS, 4 Cyl 1.9 L GAS, 4 Cyl 2.0 L DIESEL
- Marquis | 1984-1986 | Base, Brougham | 4 Cyl 2.3 L GAS, 4 Cyl 2.3 L LPG, 6 Cyl 3.8 L GAS
- Sable | 1986-1995 | GS, LS, LTS | 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS
- Topaz | 1984-1994 | Base, GS, GS AWD, LS, LS AWD, LTS, LTS AWD, Sport, Sport AWD, XR5, XR5 AWD | 4 Cyl 2.0 L DIESEL, 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Ignition Coil Part Number: FOTZ-12029-A
$83.87 MSRP: $138.00
You Save: $54.13 (40%)
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Product Specifications
- Other Name: Coil Assembly - Ignition; Distributor Less Coil; Coil
- Manufacturer Note: OHV, SOHC
Fits the following Mercury Models:
- Mountaineer | 1998-2010 | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Mercury Ignition Coil Part Number: 9E5Z-12029-A
$66.52 MSRP: $109.45
You Save: $42.93 (40%)
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Product Specifications
- Other Name: Coil Assembly - Ignition; Direct Ignition Coil; Direct Ignition Coil Oe Quality; Coil On Plug Coil; Coil
Fits the following Mercury Models:
- Mariner | 2009-2011 | Base, Hybrid, Premier | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
- Milan | 2010-2011 | Base, Hybrid, Premier | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
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Mercury Ignition Coil, Brown Part Number: 8L3Z-12029-A
$48.95 MSRP: $80.55
You Save: $31.60 (40%)
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Product Specifications
- Other Name: Coil Assembly - Ignition; Direct Ignition Coil; Direct Ignition Coil Oe Quality; Coil On Plug Coil; Ignition Coil Set; Coil
- Manufacturer Note: With Brown Coil Boots
Fits the following Mercury Models:
- Mountaineer | 2008-2010 | Premier | 8 Cyl 4.6 L GAS
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Mercury Ignition Coil Part Number: 7T4Z-12029-E
$64.64 MSRP: $106.36
You Save: $41.72 (40%)
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Product Specifications
- Other Name: Coil Assembly - Ignition; Direct Ignition Coil; Direct Ignition Coil Oe Quality; Coil On Plug Coil; Coil
Fits the following Mercury Models:
- Sable | 2008-2009 | Base, Premier | 6 Cyl 3.5 L GAS
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Mercury Ignition Coil Part Number: 6E5Z-12029-BA
$78.01 MSRP: $128.36
You Save: $50.35 (40%)
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Product Specifications
- Other Name: Coil Assembly - Ignition; Direct Ignition Coil; Direct Ignition Coil Oe Quality; Coil On Plug Coil
Fits the following Mercury Models:
- Mariner | 2009-2011 | Base, Premier | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
- Milan | 2006-2011 | Base, Premier | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Ignition Coil Part Number: 3W7Z-12029-AA
$48.95 MSRP: $80.55
You Save: $31.60 (40%)
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Product Specifications
- Other Name: Coil Assembly - Ignition; Direct Ignition Coil; Direct Ignition Coil Oe Quality; Coil On Plug Coil; Ignition Coil Set; Coil
- Replaces: 1L2Z-12029-AA, 8W7Z-12029-A, DG-540
Fits the following Mercury Models:
- Grand Marquis | 1998-2011 | GS, GSL, Limited Edition, LS, LSE, Ultimate Edition | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
- Marauder | 2003-2004 | Base | 8 Cyl 4.6 L GAS
- Mountaineer | 2002-2005 | Base, Convenience, Luxury, Premier | 8 Cyl 4.6 L GAS
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Mercury Ignition Coil, Black Part Number: 3L3Z-12029-BA
$49.28 MSRP: $81.09
You Save: $31.81 (40%)
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Product Specifications
- Other Name: Coil Assembly - Ignition; Direct Ignition Coil; Direct Ignition Coil Oe Quality; Coil On Plug Coil; Ignition Coil Set; Coil
- Manufacturer Note: With Black Coil Boots
Fits the following Mercury Models:
- Mountaineer | 2006-2008 | Luxury, Premier | 8 Cyl 4.6 L GAS
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Mercury Ignition Coil Part Number: 6E5Z-12029-AA
$74.52 MSRP: $101.40
You Save: $26.88 (27%)
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Product Specifications
- Other Name: Coil Assembly - Ignition; Direct Ignition Coil; Direct Ignition Coil Oe Quality
Fits the following Mercury Models:
- Milan | 2006-2009 | Base, Premier | 4 Cyl 2.3 L GAS
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Mercury Ignition Coil Part Number: 2M2Z-12029-AC
$66.96 MSRP: $110.18
You Save: $43.22 (40%)
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Product Specifications
- Other Name: Coil Assembly - Ignition; Direct Ignition Coil; Direct Ignition Coil Oe Quality; Coil On Plug Coil
- Replaces: 9L8Z-12029-A, DG-500, DG-539
Fits the following Mercury Models:
- Mariner | 2005-2008 | Base, Luxury, Premier | 6 Cyl 3.0 L GAS
- Montego | 2005-2007 | Luxury, Premier | 6 Cyl 3.0 L GAS
- Sable | 2000-2005 | LS, LS Premium, Platinum Edition | 6 Cyl 3.0 L GAS
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Mercury Ignition Coil Part Number: F5RZ-12029-D
$144.72 MSRP: $243.64
You Save: $98.92 (41%)
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Product Specifications
- Other Name: Coil Assembly - Ignition; Direct Ignition Coil Oe Quality; Distributor Less Coil; Direct Ignition Coil; Coil
- Replaces: F5RZ-12029-C
Fits the following Mercury Models:
- Cougar | 1999-2002 | Base | 4 Cyl 2.0 L GAS
- Mystique | 1995-1999 | Base, GS, GS Spree, LS | 4 Cyl 2.0 L GAS
- Tracer | 1998-1999 | GS, LS, Trio | 4 Cyl 2.0 L GAS
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Mercury Ignition Coil Part Number: 988Z-12029-A
$70.94 MSRP: $116.73
You Save: $45.79 (40%)
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Product Specifications
- Other Name: Coil Assembly - Ignition; Direct Ignition Coil Oe Quality; Distributor Less Coil; Direct Ignition Coil; Coil
- Replaces: XS8Z-12029-AD, XS8Z-12029-AA
Fits the following Mercury Models:
- Mystique | 1999-2000 | GS, LS | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
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Mercury Ignition Coil Part Number: 4L7Z-12029-AB
$49.91 MSRP: $83.64
You Save: $33.73 (41%)
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Product Specifications
- Other Name: Coil Assembly - Ignition; Direct Ignition Coil; Direct Ignition Coil Oe Quality; Coil On Plug Coil; Ignition Coil Set; Coil
- Replaces: 4L7Z-12029-AA, 2C6Z-12029-AA
Fits the following Mercury Models:
- Marauder | 2003-2004 | Base | 8 Cyl 4.6 L GAS
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Mercury Ignition Coil Part Number: F5XZ12029AA
Product Specifications
- Other Name: Coil Assembly - Ignition; Coil Assembly
Fits the following Mercury Models:
- Villager | 1993-1998 | GS, LS, Nautica | 6 Cyl 3.0 L GAS

Mercury Ignition Coil

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Mercury Ignition Coil Parts and Q&A

Ignition Coil
3W7Z-12029-AA
Q: How to service the ignition coil-on-plug on Mercury Grand Marquis?
A:
Service of the ignition coil-on-plug begins by removing the air cleaner outlet pipe. First disconnect the connector from the ignition coil then remove the bolt that sustains the ignition coil position. Extract the ignition coil on plug after performing its required steps. Return all steps in the opposite order when installing it.
Ignition Coil
6E5Z-12029-BA
Q: How to service the ignition coil-on-plug on Mercury Mariner?
A:
The first step to service ignition coil-on-plug includes disconnecting the four electrical connectors from the ignition coils. The removing process of ignition coils requires a twisting movement to detach the seal before extraction. Begin by taking out the four bolts retaining the ignition coils into place. The installation requires tightening the bolts to 8 Nm (71 lb-in). Guardian will inspect coil seals for damages then dispose of any seals discovered to be torn or nicked. Insert new coil seals into each coil component until they reach complete position on the top end. At the conclusion of installation return to the contrary process and spread dielectric grease on the ignition coil boots interiors before reconnecting them to the spark plugs.