Bosch 0438170004 Fuel Pressure Accumulator

The Bosch 0438170004 Fuel Pressure Accumulator is a critical component in fuel injection systems, designed to maintain consistent fuel pressure for optimal engine performance and reliability. This genuine Bosch component serves multiple essential functions in your vehicle's fuel delivery system.

Key Features and Functions:

• Maintains fuel system pressure after engine shutdown to facilitate quick, reliable restarts
• Prevents fuel line evaporation when the engine is off, eliminating hard start conditions
• Dampens noise from the electric fuel pump during engine operation
• Ensures steady fuel supply to injectors by preventing fuel vaporization and vapor lock
• Reduces acceleration lag by maintaining consistent fuel line pressure

Why Replace Your Fuel Accumulator:

A failed fuel accumulator can cause symptoms including hard starting, whining noise from the fuel pump, poor acceleration, and decreased fuel efficiency. When the accumulator fails, it may return too much fuel back to the tank, resulting in insufficient fuel pressure and reduced engine performance. This OEM-quality Bosch replacement restores proper fuel system operation and is engineered to exact factory specifications.

Specifications:

• Manufacturer Part Number: 0438170004
• Replaces OEM Part Number: 0004760121
• Location: At fuel tank area, near fuel pump
• Quantity Required: 1 per vehicle

Bosch is the world's largest supplier of automotive components, with over 100 years of engineering excellence. All Bosch fuel system components meet or exceed OEM specifications for quality, performance, and durability.