Bosch 0221504711 Coil-On-Plug Ignition Coil

The Bosch 0221504711 is a premium coil-on-plug ignition coil designed to deliver reliable spark energy directly to the spark plug. This OE-quality ignition coil transforms 12-volt battery voltage into approximately 30,000 volts required to create a consistent ignition spark in the combustion chamber.

Key Features:

• Coil-on-plug design mounts directly over the spark plug for efficient energy transfer
• Integrated rubber boot seals over the spark plug ceramic insulator
• Upper sealing lips provide secure mounting and protection from contaminants
• Engineered to Bosch OE specifications for reliable performance
• Transformer design with dual coil configuration for efficient voltage conversion

Bosch ignition coils are built to withstand extreme heat and vibration while maintaining consistent spark output. The coil-on-plug design eliminates the need for spark plug wires, reducing ignition system complexity and potential failure points. Each coil is manufactured with quality materials to resist cracking, corrosion, and insulation breakdown that can lead to misfires and poor engine performance.