Passando attraverso il foro della candela, la filettatura danneggiata può essere riparata.
Car Spark Thread Repair Tool Rear Thread 14mm Steel Thread Repair Tool
KD Tools USA 14mm x 18mm Metric Thread Restoring Tap Rethreader, Model 730
Spark Plug Thread Repair Kit – 14mm Reamer Thread Repair Tool &4 Inserts
Spark Plug Gap Tool & 32 Blade Steel Feeler Gauge for 10mm 12mm 14mm 16mm Thread
SK Hand Tools 314 3/8" Dr. 14mm 6pt Standard Metric Chrome Socket USA MADE
M14 X 1.25 Plug Hand Tap Irwin 1749 ZR RH CarbonSteel 4FL USA 14MM x1.25 Metric
