Bosch 000-476-04-21 Fuel Injection Fuel Accumulator

The Bosch 000-476-04-21 Fuel Injection Fuel Accumulator is a precision-engineered OEM component designed to maintain consistent fuel pressure in your vehicle's fuel injection system. This critical component stores pressurized fuel and releases it when needed, ensuring optimal engine performance, smooth operation, and enhanced fuel efficiency.

Key Features:

• Genuine Bosch OEM quality constructed with premium-grade materials for long-lasting durability
• Maintains stable fuel pressure to prevent fluctuations that can cause stalling or inefficient operation
• Utilizes a diaphragm design that separates fuel from pressurized gas to store energy for sudden fuel demands
• Built to resist corrosion and withstand harsh environmental conditions
• Precision engineering ensures direct OEM fitment and reliable performance
• Helps prevent vapor lock and fuel vaporization issues

The fuel accumulator works by storing pressurized fuel through a flexible diaphragm system, which compresses gas (typically nitrogen) as the fuel pump delivers fuel through the system. This stored energy is released during acceleration or sudden fuel demands to maintain stable fuel pressure throughout the engine's operating cycle. Without a properly functioning fuel accumulator, pressure fluctuations can lead to poor engine performance, stalling, reduced efficiency, and potential engine damage.

Cross-Reference Numbers: Bosch 0438170017, 0 438 170 017, Mercedes-Benz 0004760421, A0004760421