Standard FD503K8 OE Durability Improved Ignition Coil Kit. Huge range of parts in stock. Supplying UK, Europe & USA. Over 30,000 sq ft of parts across UK and USA. We are a UK Company. Sourcing the best brands names. Standard FD503K8 OE Durability Improved Ignition Coil Kit Features. Multipack Ignition Coil Kit for a complete replacement of old and worn ignition coils. Our ignition coils use 100% pure copper windings in the primary and secondary bobbins to improve durability and provide higher resistance to prevent internal shorts and dielectric breakdown. Updated internal design ...