How to inspect and replace Ignition Coil and spark plug wires on Lincoln Navigator?

First of all, apply the silicone dielectric compound inside each boot after detaching a spark plug wire. Replace and check for spark plug wires while you're installing new spark plugs. First off, watch for damage to the wires as the engine runs, starting with cylinder number one. The other wires should be inspected and made sure they are well fastened. Also, clean them up and see if there are any cracks on the coil packs or carbon tracking problems.

How to check and replace the electronic integrated (El) ignition system and Ignition Coil on Lincoln Navigator?

To check the EI ignition system, disconnect the coil's electrical connector(s) with the ignition off and use an ohmmeter to measure resistance. If not, replace the coil. For this, disconnect the battery's negative cable, the ignition coil electrical connector(s), and remove the spark plug wires. Remove the ignition coil from the engine mounting bracket. During installation, apply silicone dielectric compound inside the rubber boot before inserting each spark plug wire into the ignition coil.

Genuine Lincoln Navigator Ignition Coil

Ignition Coil Resistor

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7 Ignition Coils found

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Lincoln Navigator Coil Assembly - Ignition
Part Number: 8L3Z-12029-A
$49.91 MSRP: $78.91
You Save: $29.00 (37%)
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Product Specifications
- Other Name: Coil, Ignition Coil
- Manufacturer Note: With Brown Coil Boots
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008-2014 Lincoln Navigator | 8 Cyl 5.4L | 4-Speed Automatic Transmission E4OD(4R100), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission ZF 6HP26 Steptronic, Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Lincoln Navigator Coil Assembly - Ignition
Part Number: HL3Z-12029-D
$78.65 MSRP: $111.64
You Save: $32.99 (30%)
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Product Specifications
- Other Name: Ignition Coil
- Replaces: DG-560, HL3Z-12029-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2018-2021 Lincoln Navigator | 6 Cyl 3.5 L GAS, 6 Cyl 3.5L GTDI | 10-Speed Automatic Transmission (10R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Lincoln Navigator Coil Assembly - Ignition
Part Number: HL3Z-12029-A
$78.65 MSRP: $111.64
You Save: $32.99 (30%)
ADD TO CART
Product Specifications
- Other Name: Coil Assy - Ignition
- Replaced by: HL3Z-12029-D
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2018-2019 Lincoln Navigator | 6 Cyl 3.5L GTDI | 10-Speed Automatic Transmission (10R80), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Lincoln Navigator Coil Assembly - Ignition
Part Number: 4L7Z-12029-AA
$39.63 MSRP: $78.73
You Save: $39.10 (50%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Coil Assy - Ignition
- Replaced by: 4L7Z-12029-AB
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2004 Lincoln Navigator | 8 Cyl 5.4L DOHC EFI | 4-Speed Automatic Transmission E4OD(4R100), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission ZF 6HP26 Steptronic, Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Lincoln Navigator Coil Assembly - Ignition
Part Number: BL3Z-12029-C
$72.05 MSRP: $119.09
You Save: $47.04 (40%)
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Product Specifications
- Other Name: Coil Assy - Ignition; Ignition Coil
- Replaces: DG-548, BL3Z-12029-B, BL3Z-12029-A, DG-547
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2015-2017 Lincoln Navigator | 6 Cyl 3.5L GTDI | 4-Speed Automatic Transmission E4OD(4R100), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission ZF 6HP26 Steptronic, Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Lincoln Navigator Coil Assembly - Ignition
Part Number: 3L3Z-12029-BA
$50.73 MSRP: $80.91
You Save: $30.18 (38%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Coil, Ignition Coil
- Manufacturer Note: With Black Coil Boots
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2008 Lincoln Navigator | 8 Cyl 5.4L | 4-Speed Automatic Transmission E4OD(4R100), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission ZF 6HP26 Steptronic, Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Lincoln Navigator COIL ASY - IGNITION
Part Number: ML3Z-12029-A
$58.46 MSRP: $116.18
You Save: $57.72 (50%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Ignition Coil
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2022-2024 Lincoln Navigator | 6 Cyl 3.5 L GAS

Lincoln Navigator Ignition Coil Parts Questions & Experts Answers

Coil Assembly - Ignition
3L3Z-12029-BA
Q: How to inspect and replace Ignition Coil and spark plug wires on Lincoln Navigator?
A: First of all, apply the silicone dielectric compound inside each boot after detaching a Spark Plug wire. Replace and check for spark plug wires while you're installing new spark plugs. First off, watch for damage to the wires as the engine runs, starting with cylinder number one. The other wires should be inspected and made sure they are well fastened. Also, clean them up and see if there are any cracks on the coil packs or carbon tracking problems.
Coil Assembly - Ignition
3L3Z-12029-BA
Q: How to check and replace the electronic integrated (El) ignition system and Ignition Coil on Lincoln Navigator?
A: To check the EI ignition system, disconnect the coil's electrical connector(s) with the ignition off and use an ohmmeter to measure resistance. If not, replace the coil. For this, disconnect the battery's negative cable, the ignition coil electrical connector(s), and remove the spark plug wires. Remove the ignition coil from the engine mounting bracket. During installation, apply silicone dielectric compound inside the rubber boot before inserting each spark plug wire into the ignition coil.