Spark Plug Opening Thread Chaser 14 & 18mm - KD Tools

The KD Tools 730 Spark Plug Opening Thread Chaser is designed to clean and restore damaged or dirty spark plug threads in aluminum or cast iron cylinder heads. With 14mm and 18mm ends, it covers the most common spark plug thread sizes found in domestic and import passenger vehicles, light trucks, and small industrial engines. Use it to help ensure proper plug seating and torque, reducing the risk of misfires and thread damage.

Key Features

• Dual-size design with 14mm and 18mm thread chasers for servicing most modern and older engines
• Restores spark plug opening threads to help prevent cross-threading and sealing issues
• Designed for use with a standard 13/16" socket for easy access in tight engine bays
• Rubber ring provides grip and reduces slipping while starting the tool in the plug bore
• Suitable for use on aluminum and cast iron heads when used with appropriate care and lubrication
• Professional-grade construction for repeat use in shop environments

Applications

The KD 730 spark plug opening thread chaser is ideal for cleaning and repairing spark plug holes during tune-ups, plug replacement, or head work. Commonly used on automotive engines in passenger cars, SUVs, and light-duty trucks, it is also useful for powersports and small industrial engines that use 14mm or 18mm spark plugs. Keep it in the top drawer for correcting minor thread issues before they become costly cylinder head repairs.

Specifications

• Manufacturer: KD Tools
• Model: 730
• Thread sizes: 14mm and 18mm
• Drive: 13/16" socket required for operation