The Big-Sert 5141E-469 M14 x 1.25mm is an extended reach oversized spark plug thread repair kit. The extended tooling in the 5141E kit makes working down into a deep port much easier.

The Big Sert 5141E-469 thread repair kit is for second time repair where the previous repair has failed. The outside thread of the Big-Sert is M18 x 1.5, the stripped hole should not be larger than 16.3mm or .640 inches.

The Big-Sert 5141E-469 includes 8 assorted length inserts

  • 1 51401 Washer seat 9.4mm (copper)
  • 2 51407 Washer seat 16.8mm (copper)
  • 1 51409 Washer seat 23mm (copper)
  • 1 51453 Taper seat 11mm (silver)
  • 2 51457 Taper seat 16.8mm (silver)
  • 1 51469 Taper seat 24mm (silver)

Additional information

Weight 5 lbs
Dimensions 15 × 13 × 4 in


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