The Carlyle 14mm Spark Plug Thread Insert is crafted from durable material to handle tough repairs on aluminum head engines, specifically replacing damaged 14mm spark plug threads. Designed to work seamlessly with the CSPTIRT reamer and tap, it makes restoring stripped threads straightforward and reliable. Available in a range of sizes including 3/8", 7/16", 1/2", and 3/4", this insert delivers the rugged performance needed to get engines back in action without skipping a beat.
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WHAT SETS CARLYLE APART
Carlyle Tools are crafted with precision, durability, and expertise to help professionals tackle the toughest jobs with confidence. Designed to perform under pressure, our tools ensure you get the job done right the first time, every time.
GRIT
At Carlyle, we understand the grit it takes to succeed in demanding environments. That’s why our tools are engineered to withstand the toughest conditions, giving you the reliability and strength you need to power through every challenge.
HONESTY
We believe in honest craftsmanship and delivering on our promises. Carlyle Tools are built to the highest standards, ensuring professional-grade performance you can trust. No shortcuts, no compromises—just tools that work as hard as you do.
KNOWLEDGE
With decades of experience in the industry, Carlyle Tools are designed by experts who understand the needs of professionals. Our tools combine innovation and expertise to help you work smarter, not harder, giving you the edge to excel in your craft.