Description
Product Overview
The fuel metering unit is installed at the inlet end of the high-pressure fuel pump, receiving real-time engine control signals to regulate the fuel flow entering the pump and precisely control the oil pressure in the common rail pipe. Over time, due to long-term wear from diesel impurities, aging coils, and hardened sealing gaskets, there may be flow regulation failure, continuous low/high oil pressure in the rail, intermittent fuel cut-off, difficulty in vehicle startup, sluggish climbing power, and excessive black smoke emissions. This product's integrated metering valve assembly is factory-calibrated for the flow curve, with standardized specifications for flange holes, oil circuit interfaces, and electrical control plugs. It can be disassembled and installed without adjustment, suitable for maintenance of light trucks, pickup trucks, and small to medium-sized construction machinery high-pressure common rail fuel pumps.
Unique core advantages of this product
Double-ear stamped metal flange base, firmly assembled without leakage
Symmetrical fixed ear flanges, formed by thick steel plate stamping, evenly distributed force during assembly, making the flange less likely to loosen or shift under long-term vibration conditions; the flange plane is precisely machined, fitting the oil pump installation surface without any gap.
Front-end equipped with a green fluorine rubber sealing ring, zero leakage in the high-pressure oil circuit
Pre-installed green O-ring resistant to high and low temperatures and diesel corrosion, isolating high-pressure fuel leakage at the connection between the oil pump and the metering valve, preventing oil pressure loss and rail pressure fluctuations, suitable for thousands of bar high-pressure working environments.
Integrated quenched alloy valve body, resistant to high pressure without deformation
The central metal valve body undergoes quenching hardening treatment, capable of withstanding the continuous high-pressure impact of the oil pump, with smooth internal oil channels and no vortex, ensuring smooth fuel flow and stable linear flow regulation.
Tail waterproof sealed electrical control plug, stable signal transmission and oxidation resistance
The tail integrated insulated electrical control connector, with gold-plated conductive contacts inside, isolating diesel oil, gas, and water vapor erosion, ensuring no delay in signal transmission and eliminating flow regulation lag and intermittent cylinder failure.
Built-in high-precision electromagnetic valve core, linear and precise flow regulation
The internal precision electromagnetic regulating valve core has a unified response speed when powered on/off, capable of precisely completing micro-flow regulation, stabilizing the common rail oil pressure in various working conditions, optimizing fuel combustion efficiency, and reducing black smoke and fuel consumption.
Whole machine factory flow calibration, no need for secondary calibration during installation
The finished product undergoes full working condition flow testing, and after replacement, it can directly match the engine ECU parameters, reducing maintenance and debugging time and quickly restoring the original factory power performance of the vehicle. Applicable scenarios
This product is suitable for light-duty freight trucks, diesel pickups, small wheeled construction machinery, and light-duty diesel generators equipped with high-pressure common rail fuel supply systems. It is applicable for short-distance urban transportation, light-load construction sites, and light-duty electric control diesel engines operating in alternating cold and hot environments. The high-pressure oil pump flow control components of this product can be replaced.
Product Basic Parameters
Product Name: Fuel Metering Unit (Flow Control Valve)
Part Number: 0928400644
Main Material: Pressed alloy steel flange, quenched and tempered alloy valve body, fluororubber sealing ring, oil-resistant insulated electronic control plug
Structural Feature: Double-ear flange mounting base, green sealing O-ring at the front end, integrated alloy valve body in the middle, electric control terminal at the tail end, built-in electromagnetic flow valve core
Application Conditions: High-frequency flow regulation, continuous high-temperature vibration in the engine compartment, light-duty common rail diesel engines operating in impure diesel environments
Product Status: New and complete metering valve assembly, factory completed with flow accuracy, high-pressure sealingity, and electric control response full machine calibration and testing
Packaging: Single independent shock-proof cardboard box packaging, dust-proof protection plugs are equipped at the oil circuit end and the plug-in end to prevent scratches and damage to the sealing surfaces and conductive contacts during transportation. Supports single-piece retail and bulk purchase in cases, and is compatible with cross-border small items and full-case logistics.
