How to replace spark plugs in Lincoln Navigator?

Vehicles with 4.2L engines have side spark plugs, while 4.6L and 5.4L engines have top plugs. For replacement, you'll need a spark plug socket, extensions, gap gauge, and possibly a special wire removal tool. Use a torque wrench. Buy new plugs in advance, adjust gaps, and replace one at a time. Let engine cool, check new plugs for defects, adjust gaps. Remove wire, blow away dirt, remove plug counterclockwise. Compare old plug to chart. Apply anti-seize compound, tighten new plug. Inspect wire before attaching to new plug. Repeat for remaining plugs, replace one at a time.

Genuine Lincoln Navigator Spark Plug

Ignition Spark Plug

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7 Spark Plugs found

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Lincoln Navigator Spark Plug
Part Number: HJFS-24FP
$10.08 MSRP: $16.07
You Save: $5.99 (38%)
Ships in 1-2 Business Days
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Product Specifications
- Replaced by: HJFS-24FP-X
- 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 Spark Plug
Part Number: CYFS-12-YT3
$11.59 MSRP: $18.02
You Save: $6.43 (36%)
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Product Specifications
- Replaced by: CYFS-12-YT4X
- 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 Spark Plug
Part Number: CYFS-12Y-PCT
$11.16 MSRP: $17.35
You Save: $6.19 (36%)
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Product Specifications
- Replaced by: CYFS-12Y-PCTX
- 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 Spark Plug
Part Number: AGSF-32P-M
$6.11 MSRP: $9.49
You Save: $3.38 (36%)
Ships in 1 Business Day
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Product Specifications
- Replaced by: AGSF-32P-MX
- 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 Spark Plug
Part Number: PZT-14F
$15.33 MSRP: $23.82
You Save: $8.49 (36%)
ADD TO CART
Product Specifications
- Replaced by: PZK-14F-X
- 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 SPARK PLUG
Part Number: CYFS-12Y-RT3
$10.45 MSRP: $16.24
You Save: $5.79 (36%)
Ships in 1-3 Business Days
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Product Specifications
- Replaces: CYFS-12Y-PT, CYFS-92-YPT, CYFS-092-YPT
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2020-2021 Lincoln Navigator | 6 Cyl 3.5 L GAS
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Lincoln Navigator SPARK PLUG
Part Number: DYFS-12Y-PT
$13.10 MSRP: $20.36
You Save: $7.26 (36%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- 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 Spark Plug Parts Questions & Experts Answers

Spark Plug
AGSF-32P-M
Q: How to replace spark plugs in Lincoln Navigator?
A: Vehicles with 4.2L engines have side spark plugs, while 4.6L and 5.4L engines have top plugs. For replacement, you'll need a spark plug socket, extensions, gap gauge, and possibly a special wire removal tool. Use a torque wrench. Buy new plugs in advance, adjust gaps, and replace one at a time. Let engine cool, check new plugs for defects, adjust gaps. Remove wire, blow away dirt, remove plug counterclockwise. Compare old plug to chart. Apply anti-seize compound, tighten new plug. Inspect wire before attaching to new plug. Repeat for remaining plugs, replace one at a time.