Exergy E05-10205 Inlet Metering Valve FCA/MPROP for 2004.5-2005 GM Duramax LLY

Vehicle Fitment

• 2004.5-2005 Chevrolet Silverado 2500HD/3500 (6.6L Duramax LLY)
• 2004.5-2005 GMC Sierra 2500HD/3500 (6.6L Duramax LLY)

Fitment Notes

• LLY-specific application - not compatible with LB7, LBZ, LMM, LML, or L5P Duramax generations, which use different Exergy part numbers

Features

• Direct replacement for the OEM fuel control actuator (FCA) / MPROP
• Controls fuel flow to the CP3 injection pump for consistent rail pressure
• Addresses common symptoms like engine lope at idle, surging, or rail pressure fluctuations from a worn factory valve
• Properly de-burred and assembled to Exergy's cleanliness standards

Specifications

• Component type: Inlet Metering Valve (Fuel Control Actuator / MPROP)
• Engine application: 6.6L Duramax LLY
• Weight: 1.0 lb

Included Components

• 1x Exergy Inlet Metering Valve (FCA/MPROP)

Product Description

The Exergy E05-10205 is a direct-replacement inlet metering valve for the 2004.5-2005 Duramax LLY, addressing the fuel control actuator (also known as the FCA or MPROP) that regulates fuel flow into the CP3 high-pressure pump. Age and poor fuel quality can cause the factory spool valve to wear and travel inconsistently, leading to symptoms like idle lope, surging under load, or noticeable rail pressure fluctuations.

As a core component of the high-pressure fuel system, a failing MPROP can cause serious drivability issues if left unaddressed, and Exergy builds this replacement to the same cleanliness and assembly standards as its broader Duramax fuel system lineup. A professional diagnosis is recommended beforehand to confirm the MPROP is the actual source of the issue before replacement.