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

Part #: 98181

The CTA Manufacturing Corp. Spark Plug Thread Repair Kit (Model 98181) provides a robust and efficient solution for repairing damaged M18 x 1.5 spark plug threads in a variety of engine materials. Designed for professional technicians and mechanics, this kit offers a cost-effective method to restore integrity to compromised spark plug ports, ensuring a strong, wear-resistant, and permanent repair.

Key Features

  • Durable Thread Repair: Pro-Thread inserts create a permanent, wear-resistant internal thread in materials like cast iron, steel, and aluminum.
  • Enhanced Strength: Repaired threads are engineered to be stronger than the original parent material, preventing future damage.
  • Corrosion and Temperature Resistance: Stainless steel inserts effectively resist the degrading effects of high temperatures and corrosive environments.
  • Precision Correction: Wire inserts are designed to compensate for minor thread and pitch angle errors, ensuring a precise fit.
  • Simple 4-Step Process: The intuitive DRILL, TAP, INSERT, SNAP installation method streamlines the repair process for efficiency in the workshop.
  • Professional-Grade Components: Includes an M18 x 1.5mm STI Pilot Nose HSS Tap and a hand installation tool for reliable performance.

Applications

This M18 x 1.5 Spark Plug Thread Repair Kit is essential for professional applications requiring the restoration of spark plug ports. It is particularly effective for:

  • Automotive engine repairs involving damaged M18 x 1.5 spark plug threads.
  • Motorcycle engine maintenance and overhaul.
  • Repair of outdoor power equipment, including generators and lawnmowers with compatible spark plug sizing.
  • Agricultural and farm equipment repair.
  • General industrial maintenance where M18 x 1.5 thread repair is necessary.

Specifications

  • Internal Thread Diameter: 18 mm
  • Pitch: 1.5 mm
  • Insert Quantity: 5
  • Included Inserts: M18 x 1.50mm x 1/2" MF Spark Plug Wire Thread Inserts
  • Included Tools: 18 x 1.5mm STI Pilot Nose HSS Tap, Hand Installation Tool
  • CTA Insert Replacements: Part #98187
Usually In Stock Usually ships in 24-48 hours Manufacturer Direct
List: $379.99 Save: $130.26

$249.73

Add to Cart:

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

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