LG21P01003F2 Fuel Filter Assembly

Product Overview

The LG21P01003F2 Fuel Filter Assembly is a critical maintenance component for the Kobelco SK75-8 excavator equipped with the Isuzu 4LE2XCUA diesel engine . This complete fuel filter assembly ensures that clean, contaminant-free fuel reaches the engine’s injection system, which is essential for reliable starting, optimal combustion, and long engine life.

The Kobelco SK75-8 is a 7.5-8.3 ton class compact excavator widely used in construction, utility work, landscaping, and rental fleets . It is powered by the Isuzu 4LE2XCUA engine, a 4-cylinder, 2.179-liter direct injection diesel engine with turbocharger and intercooler, producing 42 kW (56.3 hp) at 2,200 rpm . This engine meets Tier 3/Stage IIIA emissions standards and requires clean fuel for reliable operation.

The fuel filter assembly removes water, sediment, and microscopic particles from diesel fuel before they can reach the sensitive fuel injection pump and injectors. A clogged or inefficient fuel filter can lead to hard starting, loss of power, engine stalling, and expensive fuel system damage.

Key Features

• OEM Specification Compliance: Manufactured to meet the exact filtration efficiency and dimensional specifications required by Kobelco for the SK75-8 .

• Complete Assembly: Includes the filter housing, filter element, and necessary sealing components for a complete replacement.

• Efficient Water Separation: Engineered to separate and collect water from diesel fuel, preventing corrosion and injector damage.

• High-Density Filter Media: Premium filter paper provides excellent particle capture while maintaining proper fuel flow rates for the 4LE2 engine.

• Direct Replacement: Designed for straightforward installation matching the original mounting dimensions and connections.

• Corrosion-Resistant Construction: Filter housing materials resist corrosion from water, fuel additives, and environmental exposure.

• 24V System Compatible: Designed for the SK75-8’s 24V electrical system.

Compatibility

This fuel filter assembly is a direct replacement for the following application:

Excavator Model

• Kobelco SK75-8

Engine Compatibility

• Isuzu 4LE2XCUA (4-cylinder, 2.179L, turbocharged, intercooled) 

Part Number Reference

LG21P01003F2

Related Part Numbers

Also Known As: Fuel Filter Kit, Diesel Filter Assembly, Fuel Water Separator, Primary Fuel Filter, Fuel Filtration Assembly

Please verify your machine’s serial number and engine configuration before purchasing to ensure correct fitment.

SK75-8 Fuel System Specifications

According to Kobelco official specifications, the SK75-8 has the following fuel system parameters :

Signs Your Fuel Filter Assembly Needs Replacement

The fuel filter is a routine maintenance item that requires regular replacement. Replace your LG21P01003F2 fuel filter assembly if you observe:

1. Scheduled Maintenance Interval: Following the manufacturer’s recommended service intervals is the best practice. Harsh or dusty environments may require more frequent changes.

2. Hard Starting: Difficulty starting the engine, especially when cold, may indicate a restricted fuel filter.

3. Loss of Power: A clogged fuel filter restricts fuel flow, resulting in reduced power output and sluggish performance under load.

4. Engine Stalling: Intermittent stalling or hesitation can be caused by fuel starvation from a blocked filter.

5. Dark or Discolored Filter: Visual inspection showing a dark, dirty, or contaminated filter element indicates it is time for replacement.

6. Water in Fuel Warning: If water is found in the filter bowl or the machine has a water-in-fuel warning, immediate replacement is required.

7. After Fuel Contamination Event: If the machine has been refueled with contaminated fuel or from a questionable source, replace the filter immediately.

8. High Operating Hours: Proactive replacement during scheduled maintenance prevents unexpected fuel-related failures.

Benefits

Why choose our LG21P01003F2 Fuel Filter Assembly for your Kobelco SK75-8?

1. Protects Expensive Fuel System Components: The fuel injection pump and injectors on the 4LE2 engine are costly to replace. A quality fuel filter is inexpensive insurance against fuel system damage.

2. Prevents Injector Failure: Modern diesel injectors have extremely tight tolerances. Even microscopic particles can cause scoring, sticking, or complete injector failure.

3. Maintains Engine Performance: Clean fuel ensures proper combustion, maintaining the SK75-8’s full 42 kW power output for demanding digging and lifting applications .

4. Improves Fuel Efficiency: A clean filter allows proper fuel flow, helping the engine maintain optimal fuel combustion and efficiency.

5. Extends Engine Life: Preventing contamination from reaching the fuel system reduces overall engine wear and extends service life.

6. Reduces Downtime: Regular filter changes prevent unexpected fuel-related breakdowns that would otherwise shut down your job site.

7. Ensures Reliable Cold Starting: A clean filter with proper water separation ensures reliable starting even in cold weather conditions.

8. OEM-Quality Assurance: Manufactured to meet or exceed original equipment standards for reliable performance.

The Importance of Fuel Quality for the SK75-8

The Kobelco SK75-8’s Isuzu 4LE2XCUA engine requires high-quality diesel fuel to maintain reliable operation. Common issues that affect fuel quality include:

• Poor Fuel Storage: Improper storage methods allow excess water, dirt, or rubbish to collect in the fuel

• Condensation: Tanks left partially empty overnight allow condensation to form, increasing water accumulation

• Contaminated Supply: Fuel from questionable sources may not meet required standards

The LG21P01003F2 fuel filter assembly is your first line of defense against these common fuel quality issues. Regular checking of the fuel water separator is recommended to catch contamination early.

Maintenance Recommendations

To maximize the protection provided by your fuel filter assembly:

• Follow Service Intervals: Adhere to the maintenance schedule in your SK75-8 operator’s manual. Harsh environments may require more frequent changes.

• Use Quality Fuel: Always use diesel fuel that meets required standards to prevent filter clogging and engine damage.

• Drain Water Regularly: If your fuel filter assembly includes a water separator bowl, drain accumulated water daily or as recommended.

• Replace, Don’t Clean: This is a disposable assembly. Always replace with a new unit; never attempt to clean and reuse.

• Keep Spare On Hand: Maintain a spare fuel filter in your parts inventory to minimize downtime during scheduled maintenance.

• Inspect Old Filter: After removal, inspect the old filter for unusual contamination (metal particles, excessive sludge) which may indicate other issues.

Installation Tips

• Professional Installation Recommended: While fuel filter replacement is relatively straightforward, proper installation requires attention to cleanliness and priming procedures.

• Clean Work Environment: Thoroughly clean the area around the fuel filter assembly before removal to prevent contamination from entering the fuel system.

• Relieve Fuel System Pressure: Consult your SK75-8 service manual for proper fuel system pressure relief procedures before disassembly .

• Check Seals: Ensure all O-rings and seals are properly seated and undamaged during installation.

• Prime the System: After installation, prime the fuel system according to the manufacturer’s procedure before attempting to start the engine.

• Check for Leaks: After installation and starting, inspect for any fuel leaks around the filter assembly.

• Dispose Properly: Used fuel filters contain trapped contaminants and should be disposed of in accordance with local environmental regulations.

• Record Service Date: Note the replacement date and operating hours for future maintenance planning.

Why Choose Our LG21P01003F2 Fuel Filter Assembly?

We understand that the Kobelco SK75-8 is a reliable, hard-working compact excavator used in demanding applications. The Isuzu 4LE2 engine is known for its durability and efficiency, but it requires clean fuel to perform at its best.

Our LG21P01003F2 Fuel Filter Assembly is manufactured to strict quality standards with the correct filtration media, water separation capability, and dimensional specifications for your SK75-8. Whether you are performing routine scheduled maintenance, troubleshooting a fuel-related performance issue, or stocking critical spares for your fleet, you can trust our fuel filter assembly to deliver the protection your Isuzu 4LE2 engine requires.

Technical Specifications

Order your LG21P01003F2 Fuel Filter Assembly today and protect your Kobelco SK75-8 excavator’s fuel system from contamination damage. In stock and ready for immediate worldwide shipping. Bulk pricing available for fleet maintenance and scheduled service kits.