NGK Standard Spark Plugs. Shown below is an over torqued spark plug that sheered due to user installation error. NGK states that incorrect torque values are responsible for up to 90% of all spark plug warranty claims.
NGK Spark Plug BR9ES (5722)
4x NGK IRIDIUM IX NGK CR9EHIX-9 6216 SPARK PLUGS Honda VFR800FI
4x NGK PFR7S8EG 1675 Laser Platinum Spark Plugs For AUDI A6 2.0 09/12--> TFSI
4x NGK Laser Iridium Spark Plugs Upgrade Kit Genuine Service Part
4x NGK JR9B Standard Spark Plugs For SUZUKI GSF1200S T W V K1-K6 Bandit 96>06
4x NGK PFR6E-10 Laser Platinum Spark Plugs For RENAULT CLIO 2 2.0 04/01>11/03
