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In stock
2 days
The Heli-Coil HELR512 Spark Plug Inserts restore damaged or stripped spark plug threads to their original strength and specification. Designed for 14mm x 1.25mm thread applications, these precision inserts provide a durable, reliable repair solution for engine cylinder heads.
Each package includes 6 inserts, making it ideal for multi-cylinder engine repairs or keeping extras on hand for future use. A trusted choice for automotive technicians, mechanics, and DIY enthusiasts working on spark plug thread restoration.
2 days
Helicoil
THREAD REPAIR KIT 3/8-16UNC
Helicoil
$M14x1.25 Sav-A-Thread Kit SPARK PLUG
Helicoil
The Heli-Coil HELR512 Spark Plug Inserts restore damaged or stripped spark plug threads to their original strength and specification. Designed for 14mm x 1.25mm thread applications, these precision...