VH15104E0050 OIL STRAINER SUB ASSY

Product Overview

The VH15104E0050 Oil Strainer Sub Assy is a critical component within the Hino J05E engine’s lubrication system, used in Kobelco SK200-8, SK210LC-8, SK250-8, and SK260LC-8 excavators. This oil strainer, also known as the oil pickup screen or oil pump intake strainer, mounts to the oil pump and sits inside the oil pan, filtering engine oil before it enters the pump .

The Kobelco SK200-8, SK210LC-8, SK250-8, and SK260LC-8 are 20-26 ton class excavators powered by the Hino J05E engine—a 4-cylinder, 5.123-liter turbocharged diesel that produces 114-118 kW at 2,000 rpm . This engine relies on clean oil for lubrication of critical components: the crankshaft bearings, connecting rod bearings, camshaft, turbocharger, and valve train.

The oil strainer is the first line of defense in the engine’s lubrication system. Positioned at the lowest point of the engine, it draws oil from the oil pan through a fine mesh screen that captures larger debris particles—gasket material, sludge, metal flakes, or carbon deposits—before they can reach the oil pump and circulate through the engine .

When the oil strainer becomes clogged with debris, or the pickup tube O-ring fails, the engine may experience low oil pressure, especially at idle, leading to catastrophic bearing failure. Replacing a damaged or clogged strainer with this OEM VH15104E0050 assembly restores proper oil flow and engine protection.

Key Features

• OEM Specification Compliance: Manufactured to meet Hino’s exact dimensional and filtration specifications for the J05E engine.

• Fine Mesh Screen: Precision mesh captures debris particles while maintaining adequate oil flow for pump suction.

• Integrated Pickup Tube: Complete assembly includes the strainer screen and pickup tube for a single-component replacement.

• O-Ring Seal Included: The assembly includes the critical O-ring seal that prevents air leakage into the oil pump suction.

• Durable Construction: Built to withstand the harsh oil pan environment, resisting corrosion and vibration fatigue.

• Direct Replacement: Matches OEM part number VH15104E0050 for a perfect fit with no modifications.

• Essential for Oil Pressure: A properly sealed strainer ensures the oil pump draws only oil, not air, maintaining proper oil pressure.

Compatibility

This oil strainer assembly is a direct OEM replacement for the following applications:

Compatible Excavator Models

• Kobelco SK200-8

• Kobelco SK210LC-8

• Kobelco SK250-8

• Kobelco SK260LC-8

Engine Compatibility

• Hino J05E Diesel Engine (4-cylinder, 5.123L, water-cooled, direct injection, turbocharged with intercooler) 

Part Number Reference

Also Known As: Oil Strainer, Oil Pickup Screen, Oil Pump Intake Strainer, Oil Suction Strainer, Oil Screen Assembly

Please verify your engine model and compare with your original part before purchasing.

How the Oil Strainer Works in the J05E Engine

Lubrication System Overview

The J05E engine’s lubrication system operates as follows:

1. Oil is stored in the oil pan at the bottom of the engine

2. The oil strainer is submerged in the oil, attached to the oil pump via the pickup tube

3. The oil pump draws oil through the strainer’s mesh screen

4. The screen captures larger debris particles

5. Filtered oil is pressurized and sent through the oil filter

6. Clean oil circulates to bearings, camshaft, turbocharger, and other components

The Critical O-Ring Seal

A rubber O-ring seals the joint between the oil strainer pickup tube and the oil pump. This seal is critical because if it leaks, the oil pump will draw air instead of oil, leading to oil aeration and low oil pressure . During oil pan removal or strainer service, this O-ring must be inspected and replaced.

Removal and Installation Reference

The Hino J05E workshop manual references oil strainer removal under the OVERHAUL section, directing technicians to:

• Remove the oil pan first

• Then remove the oil strainer assembly 

Signs Your Oil Strainer Needs Replacement

The oil strainer should be inspected and potentially replaced during major engine service. Replace your VH15104E0050 strainer if you observe:

1. Clogged or Restricted Screen: Visible debris, sludge, or gasket material covering the mesh screen, restricting oil flow.

2. Damaged Screen Mesh: Tears, holes, or punctures in the screen that would allow unfiltered debris to enter the oil pump.

3. Low Oil Pressure Warning: Particularly at idle or when the engine is hot, indicating possible strainer restriction or air leakage.

4. During Oil Pump Service: Always replace the oil strainer when servicing or replacing the oil pump.

5. During Major Overhaul: Any engine rebuild should include a new oil strainer to ensure proper oil flow from the start.

6. After Engine Failure: If the engine experienced a bearing failure or other internal damage, debris may have entered the strainer.

7. Visible Corrosion: Rust or corrosion on the strainer body or pickup tube.

Benefits

Why choose our VH15104E0050 Oil Strainer Sub Assy for your J05E engine rebuild?

1. Protects the Oil Pump: The strainer captures debris before it can enter and damage the precision oil pump components.

2. Maintains Oil Pressure: A clean, properly sealed strainer ensures the oil pump draws pure oil, not air, maintaining proper pressure.

3. Prevents Bearing Failure: Clean oil delivery to the crankshaft and connecting rod bearings prevents catastrophic engine failure.

4. Essential for Overhaul: Any engine rebuild is incomplete without a new oil strainer and O-ring.

5. New O-Ring Included: The critical sealing O-ring must be replaced whenever the strainer is removed.

6. Restores Proper Flow: A new strainer eliminates restrictions from accumulated sludge and debris.

7. Protects the Turbocharger: Clean oil is essential for the high-speed turbocharger bearings.

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

Installation Tips

• Professional Installation Recommended: Oil strainer replacement requires removing the oil pan and working in the engine crankcase area. Professional installation is strongly recommended.

• Always Replace O-Ring: The O-ring that seals the strainer tube to the oil pump must be replaced whenever the strainer is removed. A damaged or missing O-ring causes low oil pressure .

• Lubricate O-Ring: Before installation, lubricate the new O-ring with clean engine oil to ensure proper seating and prevent damage .

• Clean the Oil Pan: With the pan removed, thoroughly clean any sludge or debris from the bottom of the oil pan.

• Inspect for Debris: Check the old strainer for unusual debris (metal flakes, gasket material) that may indicate internal engine wear.

• Use Correct Torque: Follow the J05E service manual for oil strainer mounting bolt torque specifications.

• Replace Pan Gasket: Always install a new oil pan gasket when reinstalling the oil pan.

• Prime the System: After reassembly, crank the engine briefly without starting to build oil pressure before firing the engine.

Why Choose Our VH15104E0050 Oil Strainer Sub Assy?

We understand that the Hino J05E engine in your Kobelco excavator requires a clean, reliable oil supply for long-term durability. The oil strainer is a small but critical component—it is the first filter in the lubrication system, protecting the oil pump and all downstream components from debris damage.

A clogged strainer or failed O-ring can cause low oil pressure warnings, bearing damage, and catastrophic engine failure. Our VH15104E0050 Oil Strainer Sub Assy is manufactured to OEM specifications with the correct mesh size, tube dimensions, and includes the critical O-ring for proper sealing. Whether you are performing a complete engine overhaul, servicing the oil pump, or replacing a clogged strainer, this direct-fit assembly provides the reliable oil flow your J05E engine requires.

Technical Specifications

Order your VH15104E0050 J05E Oil Strainer Sub Assy today and ensure proper oil flow and engine protection for your Kobelco excavator. In stock and ready for immediate worldwide shipping. Bulk pricing available for engine overhaul kits and fleet maintenance.