ME013203 Engine Oil Pump for Mitsubishi 6D34 6D31 6D31T

ME013203 Oil Pump for Kobelco SK200 and SK230 Excavator

The ME013203 engine oil pump is supplied for Mitsubishi diesel engine lubrication system repair. It is commonly searched for Kobelco SK200-5, SK200-6, SK230 and related equipment using Mitsubishi 6D34, 6D31 or 6D31T engine references.

This page focuses on ME013203 as the main part number. ME084586 can be used as a checking reference in Mitsubishi engine oil pump listings, but final fitment should be confirmed by the old oil pump number, engine model, pump housing, gear side, mounting face and machine information before ordering.

Engine Application: Mitsubishi 6D34, 6D31 and 6D31T

For this product page, the Mitsubishi engine model is the strongest confirmation point. Mitsubishi 6D34, 6D31 and 6D31T engines are used in excavators and other heavy equipment, and buyers may search by engine model when the machine model is unclear or when the engine has already been rebuilt.

The SEO Title should cover Kobelco SK200 and SK230 machine search intent, while the H1 should reinforce the Mitsubishi 6D34 / 6D31 engine search path. This structure helps the page cover both buyer behaviors: searching by excavator model and searching by engine model or oil pump number.

If the buyer only provides the machine model, ask for the engine nameplate and old oil pump photos. If the buyer only provides the engine model, confirm the old pump number and physical pump details before quotation.

Machine Reference for Kobelco Excavator Repair

Kobelco SK200-5, SK200-6 and SK230 are useful application references for this ME013203 oil pump direction when the machine uses a matching Mitsubishi engine. These model names should be treated as application references, not as the only fitment proof.

Older excavators may have previous overhaul history, replacement engines or non-original lubrication parts. The removed oil pump and engine information are more reliable than the machine model alone.

For accurate ordering, compare the removed oil pump with the replacement unit before shipment. Photos of the pump gear side, housing, mounting face, oil passage area, old part number and engine nameplate are useful for confirmation.

Part Number and Cross Reference Notes

ME013203 is the main part number of this product page. It should stay visible in the SEO Title, H1, first paragraph, top parameters and image ALT text.

ME084586 appears together with ME013203 in several Mitsubishi 6D31 / 6D34 oil pump references and can be used as a Ref Cross or checking reference. The old pump and engine model should still be checked before shipment.

I do not recommend placing ME014230, ME084735 or other nearby Mitsubishi oil pump numbers in the top parameter area unless you have supplier confirmation or old pump evidence. Adding too many references can dilute the ME013203 page signal and increase wrong-part inquiries.

How to Confirm the Correct ME013203 Oil Pump

Mitsubishi engine oil pumps can look similar, but the gear side, pump housing, bolt hole layout and oil passage design may differ. Before ordering, compare the removed pump carefully.

• Confirm whether the old oil pump number is ME013203 or ME084586.

• Check whether the engine model is Mitsubishi 6D34, 6D31 or 6D31T.

• Compare the pump gear side, housing shape and mounting face.

• Check oil inlet, oil outlet and internal oil passage positions.

• Confirm gasket surface, bolt hole pattern and timing gear fitment area.

• Send machine model, engine nameplate and old oil pump photos before quotation if you are not sure.

Why Pump Housing and Bottom Hole Design Matter

For ME013203 oil pump matching, the housing and bottom mounting design should be checked carefully. Some aftermarket listings show different bottom-hole configurations for similar Mitsubishi 6D31 / 6D34 oil pump directions, so photos of the old pump are important before shipment.

A similar front view does not always guarantee correct installation. Gear position, body thickness, oil passage alignment and mounting hole pattern can affect fitment and lubrication performance.

For repair shops and distributors, the best confirmation method is to photograph both sides of the removed pump, including the mounting face, gear side and oil passage area.

Common Oil Pump Failure Symptoms

An engine oil pump may need replacement when the machine shows low oil pressure, oil pressure warning, unstable lubrication after startup, abnormal bearing noise, engine overheating, metal particles in engine oil or serious internal engine wear.

On excavators using Mitsubishi 6D31 or 6D34 engines, oil pump problems may appear after long working hours, poor maintenance, overheating, oil sludge buildup or internal bearing wear. The oil pump should be checked together with the complete lubrication system.

These symptoms are not always caused by the oil pump itself. Blocked oil passages, dirty engine oil, worn bearings, damaged pickup tube, clogged strainer, pressure relief valve problems or incorrect engine oil viscosity can create similar problems.

Troubleshooting Before Replacement

Before ordering an ME013203 replacement oil pump, check the lubrication system and the real reason for low oil pressure. This helps avoid replacing the pump when the root cause is oil contamination, bearing wear or blockage.

• Check engine oil level, oil grade and oil contamination.

• Inspect the oil filter, oil strainer and pickup tube condition.

• Check whether sludge or metal particles are present in the oil pan.

• Inspect crankshaft bearings, camshaft bearings and related lubrication surfaces.

• Confirm whether the pressure relief valve is stuck, worn or contaminated.

• Clean the oil circuit if the old pump failed due to contamination, sludge or engine wear.

Installation and Maintenance Notes

Before installation, clean the timing gear area, mounting surface and oil passages. Compare the replacement pump with the removed unit, including gear position, pump body shape, bolt holes and gasket surface.

Use a proper gasket or sealing method according to the engine repair requirement. After installation, check oil pressure during startup and confirm that oil circulates normally before putting the engine under load.

For longer service life, use clean engine oil, replace filters on time and avoid running the engine with low oil pressure. If the previous failure was caused by sludge, bearing wear or contamination, those causes should be corrected during repair.

Buying Notes for Repair Shops and Parts Distributors

For repair shops, this ME013203 engine oil pump is suitable for Mitsubishi 6D34, 6D31 and 6D31T engine lubrication repair when the old pump is worn, damaged or unable to maintain stable oil pressure.

For parts distributors, it can be supplied as a Mitsubishi engine oil pump reference for Kobelco excavator service demand. Topvelsun supports small repair orders and bulk inquiries. Please send the required quantity, old pump number, engine model, machine model and photos of the old oil pump from multiple angles.

FAQ

What is the main product on this page?

This page is for the ME013203 engine oil pump used for Mitsubishi 6D34, 6D31 and 6D31T diesel engine lubrication system repair.

Can ME084586 be used as a cross reference?

Yes. ME084586 appears together with ME013203 in Mitsubishi 6D31 / 6D34 oil pump references. Final fitment should still be confirmed by the old pump, engine model and pump physical configuration.

Which engine models are the main references?

The main engine references are Mitsubishi 6D34, 6D31 and 6D31T. Final confirmation should be based on the removed oil pump, engine nameplate and pump physical configuration.

Which machine models can be used as references?

Common machine references include Kobelco SK200-5, SK200-6 and SK230 when the machine uses a matching Mitsubishi engine. These should be treated as application references, and the old pump should be checked before shipment.

What should I check before ordering?

Please check the old oil pump number, engine model, pump housing, gear side, mounting face, bolt hole pattern and oil passage position. Clear photos of the removed pump are recommended.

What can cause repeated oil pump or low oil pressure problems?

Repeated problems may be caused by dirty engine oil, clogged oil strainer, blocked oil passages, worn bearings, pressure relief valve faults, sludge in the oil pan or installing a new pump without cleaning the lubrication system.