6136-51-1002 Oil Pump Assembly for Komatsu PC200-3 PC220-3

6136-51-1002 Oil Pump for Komatsu PC200 and PC220 Series

The 6136-51-1002 engine oil pump is supplied for Komatsu engine lubrication system repair. It is commonly searched as 6136-51-1002, 6136511002, engine oil pump, oil pump assembly or lubrication oil pump for Komatsu PC200, PC220 and related equipment using 6D105, S6D105 or SA6D110 engine references.

This page focuses on 6136-51-1002 as the main part number. 6136511002 is the compact no-hyphen writing format, while 6136-51-1000 may appear as a checking reference in some market listings. Final fitment should be confirmed by the old oil pump number, engine model, gear side, mounting face, oil passage layout and machine information before ordering.

Engine Application: Komatsu 6D105, S6D105 and SA6D110

For this product page, the engine model is more reliable than the machine model alone. Komatsu 6D105, S6D105 and SA6D110 engine references are the strongest direction for 6136-51-1002 oil pump matching, especially when older equipment has previous repair history or engine replacement.

The SEO Title should cover Komatsu PC200 and PC220 machine search intent, while the H1 should reinforce the Komatsu 6D105 / S6D105 engine search path. This structure gives the page broader search coverage without turning it into a general Komatsu oil pump catalog.

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 removed pump number and physical pump details before quotation.

Machine Reference for Komatsu Equipment Repair

Komatsu PC200 and PC220 series machines are useful search references for this oil pump page. Some market references also connect 6136-51-1002 with Komatsu grader and engine equipment applications such as GD505A and related 6D105 engine machines.

These model names should be treated as application references, not as the only fitment proof. Older Komatsu machines may have engine replacement, previous overhaul history or non-original oil pump changes.

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

Important Fitment Note for PC200-3 and PC220-3

This page should not strongly claim PC200-3 or PC220-3 fitment unless the old pump number confirms 6136-51-1002. In public aftermarket listings, PC200-3 and PC220-3 are often associated with nearby oil pump numbers such as 6136-52-1210 or 6136-52-1100.

Because 6136-51-1002, 6136-52-1100 and 6136-52-1210 can appear in similar Komatsu 6D105 oil pump search results, the physical old pump should be checked before shipment. Similar engine family does not always mean the same oil pump assembly.

If your stock item is actually 6136-52-1100 or 6136-52-1210, it should be handled as a separate product page or the current page title should be corrected before SEO submission.

Part Number and Reference Notes

6136-51-1002 is the main part number of this product page. The compact format 6136511002 should be included for search coverage, but it should not replace the original hyphenated part number as the main page signal.

6136-51-1000 can be kept as a cautious checking reference because it appears in the current page image information and nearby market references. However, it should not be placed before 6136-51-1002 or allowed to dominate the page.

I do not recommend placing 6136-52-1100 or 6136-52-1210 in the top parameter Ref Cross line for this page. Those numbers may represent nearby Komatsu 6D105 oil pump directions, but adding them at the top can dilute the 6136-51-1002 signal and increase wrong-part inquiries.

How to Confirm the Correct 6136-51-1002 Oil Pump

Komatsu engine oil pumps can look similar from the outside, 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 6136-51-1002 or 6136511002.

• Check whether the engine model is Komatsu 6D105, S6D105 or SA6D110.

• 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 Old Pump Comparison Matters for Classic Komatsu Machines

Many Komatsu PC200 and PC220 series machines have worked for a long service life. During previous repairs, the engine may have been rebuilt, exchanged or fitted with a different oil pump version. For this reason, the machine model alone is not enough for final confirmation.

The best checking method is to provide photos of the old oil pump from both sides. The gear-side view, mounting face, bolt hole position and oil passage area are more useful than a single front view.

This confirmation process is especially important for repair shops and distributors supplying parts remotely, because it reduces wrong-part returns and machine downtime.

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 older Komatsu equipment, low oil pressure may appear after long work cycles, poor oil 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 a 6136-51-1002 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 6136-51-1002 engine oil pump is suitable for Komatsu 6D105 / S6D105 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 replacement oil pump reference for Komatsu PC200, PC220, GD505A and related 6D105 engine equipment 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 6136-51-1002 engine oil pump used for Komatsu 6D105, S6D105 and SA6D110 engine lubrication system repair.

Is 6136511002 the same search reference as 6136-51-1002?

6136511002 is the compact no-hyphen writing format of 6136-51-1002. The main part number of this page should remain 6136-51-1002, and the removed oil pump should still be checked before ordering.

Can 6136-51-1000 be used as a reference?

6136-51-1000 can be treated as a cautious checking reference, but final fitment should be confirmed by the old pump number, engine model and physical pump configuration before shipment.

Should 6136-52-1100 or 6136-52-1210 be used as Ref Cross on this page?

No, not in the top parameters unless your stock item or supplier data confirms interchange. 6136-52-1100 and 6136-52-1210 appear in nearby Komatsu 6D105 oil pump directions and may be better handled as separate product pages.

Which engine models are the main references?

The main engine references are Komatsu 6D105, S6D105 and SA6D110. Final confirmation should be based on the removed oil pump, engine nameplate and pump physical configuration.

Which machine models can be used as references?

Komatsu PC200 and PC220 series machines can be used as search and application references. For exact fitment, please check the old pump number and engine model before ordering.

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.