0928400473 — Bosch Fuel Control / Metering Valve (Common-Rail Systems)

Precision metering and rail-pressure regulation for Cummins, DAF and other common-rail diesel platforms.

The 0928400473 (Bosch 0 928 400 473) is a high-precision fuel control / metering valve used in modern common-rail fuel systems. Its role is critical: by accurately controlling the fuel quantity sent to the high-pressure stage (or regulating rail pressure), it directly impacts cold start behavior, transient response, emissions and overall drivability. This part is offered as a genuine Bosch unit as well as reman/aftermarket equivalents and is commonly stocked by diesel parts distributors worldwide.

 

 

Fuel metering / pressure regulation: Modulates fuel volume and stabilizes rail pressure so the ECU can execute precise multi-injection strategies. 

Improved drivability: Reduces rough idle, hard starts and inconsistent throttle response caused by incorrect metering. 

Emission control: By enabling accurate injection events, the valve supports cleaner combustion and more reliable DPF/aftertreatment operation.

 

 

This valve is widely referenced for use with Cummins ISB/ISC/ISL family engines and certain DAF and regional truck platforms. Common catalog cross-references include OEM numbers such as 4088518 and other Bosch/aftermarket part matches - always verify against your pump/engine serial before ordering.

 

 

Bosch trade number: 0 928 400 473 (0928400473)

Function: Fuel control / metering valve (sometimes listed as fuel pressure regulator or solenoid control valve)

Applications: Common-rail pump metering units and injection pump control systems for light-/medium-duty diesel engines.

Supply: New genuine Bosch units, remanufactured assemblies, and aftermarket equivalents available from global distributors.

 

 

Symptoms of a failing valve: intermittent rail-pressure DTCs, loss of power, rough idle, or failed DPF regen events. If these appear, check the valve as part of a full fuel-system diagnostic. 

Bench testing: Use a calibrated test bench to compare valve actuation (electrical response) and flow characteristics to OEM reference values - bench data is the most reliable way to confirm a defective valve versus wiring/ECU issues. 

Installation tips: Replace with a verified OEM or quality reman unit, fit new sealing components, and clear fault codes after installation. Always purge air from the low-pressure side and verify steady rail pressure during cranking.

 

 

Working with high-pressure diesel systems requires clean environments and correct procedures. Contamination or poor sealing during installation can damage injectors and pumps - always follow OEM torque and cleanliness standards, and perform a full bench/road test after replacement.

 

 

The 0928400473 / 0 928 400 473 is a mission-critical Bosch metering / fuel control valve for common-rail systems - a small part with a large impact on fuel metering accuracy, emissions and drivability. For best results, verify fitment with engine/pump serials, choose traceable OEM or bench-tested reman units, and validate performance with bench testing after installation.

 

 

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