![[72.211317] PRECISION STEEL SPARK PLUG WRENCH 16-21 160 [72.211317] PRECISION STEEL SPARK PLUG WRENCH 16-21 160](https://linextras.com/web/31176-large_default/precision-steel-spark-plug-wrench-16-21-160.jpg)
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Precision Steel Tools - Professional Quality Tools
Spark plug wrench for 16 mm and 21 mm diameter spark plugs
Removal:
- Clean the area around the spark plug to be removed.
- Unscrew counterclockwise.
- Check the electrode gap with a feeler gauge.
Installation:
- Begin by hand-tightening, then tighten the spark plug to the recommended torque (refer to the vehicle manual).
Caution: Overtightening will prevent a proper seal.
Data sheet