NGK 3689 - Alternative spark plugs
There are 7 replacement spark plugs for NGK 3689. The cross references are for general reference only, please check specifications for your application.
Compatible plug on Amazon
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Specifications for NGK 3689
- Thread diameter
- 14.0 mm
- Thread reach
- 17.5 mm
- Hex size
- 16 mm
NGK 3689 replacement spark plugs
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Replacement spark plugs for NGK 3689 on Amazon
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