NGK FR4 - Alternative spark plugs
There are 42 replacement spark plugs for NGK FR4. The cross references are for general reference only, please check for correct specifications and measurements for your application. When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include Amazon Associates.
- Thread diameter: 14.0 mm
- Thread reach: 19 mm
- Hex size: 16 mm
Specifications for NGK FR4
NGK FR4 on Amazon
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Replacement spark plugs for NGK FR4 on Amazon
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Applications of NGK FR4
| Brand | Model | Engine size | HP | KW | Year | Engine | # of cyl | Spark plug gap |
|---|---|---|---|---|---|---|---|---|
| CHEVROLET | Camaro | 5.7 | 1987 - 1992 | V8 EFI Alu Heads | 8 | 0.9 | ||
| CHEVROLET | Corvette | 5.7 | 1986 - 1991 | 8 V8 EFI Alu Heads | 8 | 0.9 | ||
| FORD (USA) | Thunderbird | 3.8 | 1982 - | 3 2 bbl CID232 | 6 | 0.9 | ||
| LINCOLN | Continental | 3.8 | 1982 - | 3 2 bbl CID232 | 6 | 0.9 | ||
| MERCURY | Cougar | 3.8 | 1982 - | 3 2 bbl CID232 | 6 | 0.9 |
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The spark plug Cross References are for general reference only. Check for correct application and spec/measurements. Any use of this cross reference is done at the installers risk.