Upgrade your vehicle's ignition system with the 4pcs 12637199 41123, choice for enhanced engine performance and . With an electrode distance of 0.7 millimeters and a length of 83 millimeters, these spark plugs a precise and consistent spark, critical for optimal engine performance. Whether you own a for CT6 or an for model, these spark plugs are engineered to fit a wide range of vehicles. The 1-pin connector and thread length of 25mm a secure and straightforward installation process, making them a reliable choice for both professional mechanics and DIY enthusiasts. The spark plugs' resistance of 6 kilo-ohms and starting torque of 15Nm are designed to withstand the rigors of daily driving, providing a consistent and reliable performance. The electrode material of these spark plugs offers superior durability and a longer lifespan compared to traditional spark plugs. The electrode diameter of 0.8 millimeters and electrode spacing of 0.7 millimeters a precise and consistent spark, reducing the risk of misfires and improving efficiency. The spark position of 4mm and the wrench opening of 14mm are designed for easy access and maintenance, ensuring that your vehicle's ignition system remains in condition. part number:12637199 ,41123 For CT6 2015 - For J Hatchback 2009 - 2015 For J 2011 - For J - 2012 - For J Estate 2010 - 2015 For K - 2015 - For K Estate 2015 - For Cascada (W13) 2013 - For E (X15) 2014 - For Hatchback 2008 - 2017 For A Country Tourer (G09) 2008 - 2017 For - 2008 - 2017 For Estate 2008 - 2017 For B Country Tourer (Z18) 2017 - For B Grand Sport (Z18) 2017 - For B Sports Tourer (Z18) 2017 - For Mokka / Mokka X (J13) 2012 - For TOURER C 2011 - For VI (J) (P10) 2011 - Color: Silver Material: Metal Package Contents: 4pcs x Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.