NGK TR4 - Alternative spark plugs

There are 46 replacement spark plugs for NGK TR4. The cross references are for general reference only, please check for correct specifications and measurements for your application.

    Specifications for NGK TR4
  • Thread diameter: 14.0 mm
  • Thread reach: 17.5 mm
  • Hex size: 16 mm

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Applications of NGK TR4

Brand Model Engine size HP KW Year Engine # of cyl Spark plug gap
BUICK Century 2.8 1987 - 1989 W V6 6 1.0

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.

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