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Spark Plug Thread Repair Kit - M18 x 1.5 - Inserts Only - CTA Manufacturing Corp.

Part #: 98187

The CTA Manufacturing Corp. 98187 Spark Plug Thread Repair Kit offers a robust and cost-effective solution for restoring damaged spark plug port threads. This set of M18 x 1.5 stainless steel wire inserts is engineered for professional technicians and mechanics to create a stronger, more durable thread than the original, ensuring long-lasting repairs in critical engine components.

Key Features

  • Permanent, Wear-Resistant Repair: Pro-Thread inserts form a robust internal thread that is designed to resist wear and extend the operational life of spark plug ports.
  • Enhanced Thread Strength: Repaired threads often exceed the strength of the original parent material, contributing to increased durability and reliability.
  • Corrosion and Temperature Resistance: Constructed from high-quality stainless steel, these inserts are built to withstand the demanding conditions of engine environments, including high temperatures and corrosive elements.
  • Compensates for Thread Errors: The wire insert design helps to compensate for minor thread and pitch angle imperfections, facilitating a more precise and secure repair.
  • Cost-Effective Solution: Provides a practical and economical alternative to the costly replacement of engine blocks or cylinder heads due to stripped spark plug threads.

Applications

This M18 x 1.5 spark plug thread repair kit is an essential tool for professional technicians addressing damaged spark plug ports in a wide range of equipment. It is particularly effective for automotive engine repair, as well as applications in outdoor power equipment, motorcycle engines, and farm machinery. These inserts are suitable for use in various materials commonly found in engine construction, including cast iron, steel, and aluminum.

Specifications

  • Thread Size: M18 x 1.50mm
  • Insert Length: 1/2" MF
  • Material: Stainless Steel
  • Quantity: 5 inserts
  • Replacement For: CTA Manufacturing Part #98181
Only 2 left in stock - order soon
List: $99.99 Save: $34.27

$65.72

Add to Cart:

This product was added to our catalog on Wednesday 20 May, 2026.

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