Gearwrench 2125 14MM Spark Plug Rethreader Kit
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- 14mm Cylinder Head Rethreader Kit
- Repair damaged 14mm spark plug threads by opening hole with a reamer/tap and screwing insert on to the spark plug.
- Use spark plug socket to install spark plug and insert.
- Remove plug and check that insert is properly seated.
- Set includes 1 each of 4 inserts: 3/8, 7/16, 1/2 and 3/4" reach and thread locking compound.
- Tap is designed for aluminum heads only.