Premium Spark Plug Thread Repair Inserts

High-Quality Material
Made from hardened steel for superior durability and heat resistance, ensuring long-lasting performance under extreme engine conditions.
Precision Engineering
14mm x 1.25mm x 3/4" (414-750) exact thread specs guarantee a perfect fit for damaged spark plug holes, restoring factory-grade sealing.
Effortless Installation
Designed with self-tapping threads for quick, tool-friendly repairs—no specialized equipment needed. Ideal for DIY mechanics and professionals.
Wide Compatibility
Suitable for automotive, marine, and small engine repairs, providing a reliable fix for stripped or worn spark plug threads.
Cost-Efficient Solution
Save on costly engine block replacements—restore damaged threads in minutes with a permanent, high-strength repair.
Bulk Purchase Advantage
Buy in bulk for workshops or resale—wholesale pricing ensures unbeatable value without compromising quality.