The X39-800-300-005Z is a Pressure Control Valve (PCV) used in Continental / Siemens VDO common rail diesel fuel systems.
It is a fuel pressure control component designed for specific common rail fuel pump applications. It helps regulate fuel pressure within the system according to the fuel system design.
This part number may also appear in aftermarket searches under terms such as VCV or Volume Control Valve. However, the Continental / Siemens VDO replacement parts catalogue identifies X39-800-300-005Z as a Pressure Control Valve (PCV), while X39-800-300-006Z is listed separately as a Volume Control Valve (VCV).
Pressure-Control-Valve-X39-800-300-005Z-for-Ford-YARN-yarndiesel
Product Name: Pressure Control Valve (PCV)
Part Number: X39-800-300-005Z
Related Reference: A2C59506225
System: Common Rail Diesel Fuel System
Vehicle Brand: Ford and other selected applications
Product Category: Fuel Pressure Control Valve
The common rail diesel system uses a high-pressure pump to supply fuel to the rail. The pressure control valve is part of the fuel pressure regulation system.
Its function is to help control fuel pressure according to the design of the pump and fuel system. Correct operation is important for proper pressure regulation in the common rail system.
The pressure control valve should not be confused with a volume control valve. Although both are used in common rail fuel systems, they are different components with different part numbers and functions.

X39-800-300-005Z Valve at VDO pump
The X39-800-300-005Z is listed in the Continental / Siemens VDO replacement parts catalogue as a Pressure Control Valve (PCV). The catalogue also lists A2C59506225 as its replacement reference.
For Ford applications, the valve is associated with selected common rail fuel pump systems. Compatibility should be checked against the original valve number and fuel pump reference before ordering.
Please provide the original part number, fuel pump number, or vehicle details when requesting a compatibility check.
YARN supplies aftermarket fuel pressure control valves for common rail diesel systems.
We support product enquiries based on part numbers and fuel pump applications. Buyers can contact us for product details, compatibility checks, and private-label supply enquiries.
Contact YARN for X39-800-300-005Z Pressure Control Valve information.
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