How to disconnect and install ignition coils on Mercury Mariner?

It's possible to work on 2.0-litre 4-cylinder engines, so begin by disconnecting the cable of the negative terminal on the battery. Subsequently, the ignition coil pack electrical connector shall be disconnected and no spark plug wires remain connected to the ignition coil pack by pulling on the wire boots where necessary instead of the wires. For the removal of the coil pack, standing, locate and unbolt four passed through the coil pack to the bracket before setting the coil pack aside. For removal, reverse the instructions given above but for installation apply silicone dielectric compound in the rubber boot before fixing the spark plug wire to the ignition coil. Make sure that the wires are inserted correctly, and are snapped into the locking positions. When done with the installation, the PCM of a vehicle requires several minutes or even hours to update the idle and fuel trim strategy. For the 2.3L/2.5L four-cylinder and 3.0L V6 engines, the procedure starts with turning the ignition off, and then pulling the negative battery terminal and the engine cover casing. If to remove an ignition coil from the rear valve cover it is necessary to release upper intake manifold. Loosen the electrical connector from the ignition coil, took off the mounting bolt of the coil and then just pull it upwards. Apply non silicone dielectric compound on the inner portion of the spark plug boot before reinsertion on the spark plug. The removal process is done in the reverse order of installation and the PCM has to learn new idle and fuel trim after the install for the best ignition quality and performance.

OEM Mercury Ignition Coil

Ignition Coil Resistor

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18 Ignition Coils found

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Mercury Ignition Coil Part Number: F5SZ-12029-B
$99.89 MSRP: $164.36
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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
$73.37 MSRP: $120.73
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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
$85.64 MSRP: $140.91
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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
$60.78 MSRP: $100.00
You Save: $39.22 (40%)
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Product Specifications
- Other Name: Coil Assembly - Ignition; Direct Ignition Coil; Direct Ignition Coil Oe Quality; Coil On Plug Coil; 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
$43.74 MSRP: $69.45
You Save: $25.71 (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
$89.39 MSRP: $147.09
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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
$67.47 MSRP: $113.27
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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
$68.51 MSRP: $112.73
You Save: $44.22 (40%)
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Product Specifications
- Other Name: Coil Assembly - Ignition; Direct Ignition Coil; Direct Ignition Coil Oe Quality; Coil On Plug Coil; 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
$85.64 MSRP: $140.91
You Save: $55.27 (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
$48.20 MSRP: $76.55
You Save: $28.35 (38%)
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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
$52.71 MSRP: $86.73
You Save: $34.02 (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
$74.50 MSRP: $101.39
You Save: $26.89 (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
$69.17 MSRP: $113.82
You Save: $44.65 (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
$76.69 MSRP: $126.18
You Save: $49.49 (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
$60.76 MSRP: $102.00
You Save: $41.24 (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

If you own Mercury and want to keep it in top shape, choosing OEM Ignition Coil is a smart move. They are precisely engineered and follow strict factory standards. They are made in advanced facilities that use cutting edge technology. Each part goes through thorough testing to confirm strength and safety, so you can trust it. FordPartsDeal.com gives you genuine Mercury Ignition Coil at some of the affordable online prices without cutting quality. Every OEM Mercury part includes the manufacturer's warranty, easy returns, and super-fast delivery. So why wait? Shop now and get your vehicle back to peak condition.

Mercury Ignition Coil punches battery juice into sky-high electricity making plugs burn hard and punctual. Mercury established a business of midsize rides that were easy to ride but not cheating on prices. The Mercury cabins silenced road noises and provided drivers with light yet confident steering. Mercury showrooms applied to be full of Cougars and Grand Marquis that did not make comfort murder style. Decades on, Mercury continued to play with suspensions and seats, striking a pleasant balance of smooth travel and pocket-friendliness. Buyers preferred the smooth ride, spacious trunks, and plain gauges that were not gimmicky. The badge got its name after a fleet-footed god of Romans and the cars attempted to emulate that fast image. The silence of the cabins and the unobtrusive dependability continues to be glorified by owners even when production ceased in 2011. Broken pavement was absorbed by soft springs and the chassis remained predictable when changing lanes in a short period of time. Within an Ignition Coil, there is a primary and secondary copper winding that surrounds an iron core whereby the magnetic energy accumulates and is exploded when the transistor cuts current to create a fierce arc across each spark plug gap igniting the air-fuel mix in a flash. An Ignition Coil of modern coil-on-plug directly over the plug eliminates wasted spark wires. When one of the Ignition Coils breaks or burns, the motor hiccups, the fuel mileage drops, and the hills get stiffer. Change the faulty Ignition Coil jalap and the engine starts snorting on lean revs.

Mercury Ignition Coil Parts and Q&A

Ignition Coil
9E5Z-12029-A
Q: How to disconnect and install ignition coils on Mercury Mariner?
A:
It's possible to work on 2.0-litre 4-cylinder engines, so begin by disconnecting the cable of the negative terminal on the battery. Subsequently, the ignition coil pack electrical connector shall be disconnected and no spark plug wires remain connected to the ignition coil pack by pulling on the wire boots where necessary instead of the wires. For the removal of the coil pack, standing, locate and unbolt four passed through the coil pack to the bracket before setting the coil pack aside. For removal, reverse the instructions given above but for installation apply silicone dielectric compound in the rubber boot before fixing the spark plug wire to the ignition coil. Make sure that the wires are inserted correctly, and are snapped into the locking positions. When done with the installation, the PCM of a vehicle requires several minutes or even hours to update the idle and fuel trim strategy. For the 2.3L/2.5L four-cylinder and 3.0L V6 engines, the procedure starts with turning the ignition off, and then pulling the negative battery terminal and the engine cover casing. If to remove an ignition coil from the rear valve cover it is necessary to release upper intake manifold. Loosen the electrical connector from the ignition coil, took off the mounting bolt of the coil and then just pull it upwards. Apply non silicone dielectric compound on the inner portion of the spark plug boot before reinsertion on the spark plug. The removal process is done in the reverse order of installation and the PCM has to learn new idle and fuel trim after the install for the best ignition quality and performance.