Genuine Mitsubishi OEM ME194923 Diesel Fuel Filter Separator Feed Pump with Integrated Water Separator and Priming Pump for 4M42 4M50 Engines

The diesel fuel filter separator feed pump with OEM number ME194923 is a complete fuel filtration and priming assembly for the Mitsubishi 4M42 3.0L and 4M50 4.9L common rail diesel engines. This assembly combines a high-efficiency fuel filter/water separator and a priming pump in a single unit, ensuring a clean, reliable fuel supply to the high-pressure injection pump.

This direct replacement for the original factory unit is critical for fuel system performance: the filter element removes particulate contaminants that can cause injector wear, while the water separator removes damaging moisture from the fuel. The integrated priming pump maintains consistent fuel pressure and flow rate for smooth engine operation.

This Mitsubishi Fuso fuel filter separator ME194923 directly replaces the factory component in the following configurations:

Each Genuine Mitsubishi fuel filter separator meets original equipment quality standards with comprehensive testing:

• Filtration efficiency - verified to meet or exceed OE specification for particle removal
• Water separation efficiency - tested to meet OE specification for moisture removal
• Seal integrity - pressure tested with no leakage at operating pressure
• Priming pump function - verified to prime fuel system within specification
• Dimensional inspection - CMM measurement of mounting points and port alignment
• Material certification - confirms correct filter media and seal material grades

1. Depressurize the fuel system - common rail operates at high pressure
2. Disconnect battery negative terminal
3. Place container under filter assembly to catch fuel spillage
4. Disconnect fuel lines - note orientation of each line
5. Remove mounting bolts securing filter assembly to bracket
6. Remove old filter assembly - plastic bowl may require filter wrench
7. Compare new filter assembly with old unit for verification
8. Fill new filter with clean diesel fuel to prime system
9. Install new filter assembly and tighten mounting bolts to specification
10. Reconnect fuel lines - ensure proper seating and clip engagement
11. Reconnect battery
12. Prime fuel system using integrated hand primer pump
13. Start engine and check for fuel leaks
14. Run engine to operating temperature and check for leaks or warnings

• Use integrated priming pump to bleed system after installation
• Do not overtighten filter housing - follow torque specifications
• Replace O-rings if not pre-installed on new unit
• Dispose of old filter and spilled fuel according to local regulations
• Check water-in-fuel sensor - transfer from old assembly if required

• Individual packaging: Sealed in anti-static packaging, foam-lined carton
• Package dimensions: 17.0 × 18.5 × 21.5 cm
• Package weight: 1650 g
• Lead time: 3-7 working days for stock orders; 15-25 days for production orders
• Minimum order quantity: 1 piece (sample order available)
• Shipping methods: FedEx, UPS, DHL for samples; sea freight from Shanghai, Ningbo, Guangzhou ports
• H/S Code: 8421.23

For complete fuel system service, matching fuel filter elements and water-in-fuel sensors for 4M42 and 4M50 engines are also available.