KFP3236-20CFESE Gear Pump for Komatsu GD405 GD505 Grader

KFP3236-20CFESE Gear Pump for Komatsu GD405 GD505 Motor Grader

The KFP3236-20CFESE hydraulic gear pump is used for Komatsu motor grader hydraulic system applications. Public product references commonly list this pump for GD405-1 and GD505-2 motor grader machines.

This pump should be selected by the original pump number and physical configuration, not by model name alone. Komatsu grader hydraulic pump configurations may vary by machine version, serial number, hydraulic circuit and previous repair history. Final fitment should be verified before ordering.

Cross Reference Numbers

Common reference numbers may include KFP3236-20CFESE, KFP3236-20, KRP4-27-17CBM, KFP3245CFMSS, KFP3232CFMSS, KFP2233CVKRJ, KFP3250CFMSS and KFP3260-KP1005AK.

Some public supplier references also associate 23B-60-11102 / 23B6011102 with KFP3236-20CFESE. These numbers should be treated as cross-reference information only. Gear pumps with similar reference numbers may still differ in shaft type, port direction, mounting flange, pump body size or rotation direction.

Application and Fitment Reference

This product page should focus on Komatsu GD405-1 and GD505-2 motor grader references. Broader public references may list KFP3236-20CFESE or 23B-60-11102 for other Komatsu grader models, but those applications should not be treated as confirmed fitment without checking the original pump and machine details.

Before purchase, compare the old pump number, shaft spline or shaft end, mounting hole pattern, hydraulic port layout, inlet and outlet direction, pump body shape and rotation direction.

Common Failure Symptoms

• Slow blade or steering response: hydraulic functions respond slowly, especially when the oil is hot or the machine is under load.

• Weak hydraulic force: the grader hydraulic system cannot maintain stable working pressure.

• Abnormal pump noise: whining, vibration or cavitation-like sound may indicate air entry, oil restriction or internal wear.

• Oil leakage: leakage may appear around the pump body, shaft seal, port fittings or mounting area.

• Hydraulic oil overheating: worn pump internals, restricted oil flow, contaminated oil or relief valve issues may raise oil temperature.

• Metal particles in oil or filters: internal wear or system contamination should be checked before installing a replacement pump.

Troubleshooting Before Replacement

• Check hydraulic oil level and oil condition.

• Inspect suction lines, return lines, fittings and hydraulic filters.

• Check for air entry, loose connections or collapsed hoses.

• Measure system pressure according to the machine service procedure.

• Inspect relief valves, control valves and related hydraulic components.

• Confirm whether the problem is caused by the pump itself or by contamination, blocked filters, worn cylinders, hose restriction or valve faults.

Installation and Maintenance Notes

• Clean the pump mounting area and hydraulic line connections before removal.

• Cap all open hydraulic ports to prevent dust, water and metal particles from entering the system.

• Inspect or replace hydraulic filters before installing the replacement pump.

• Lubricate or pre-fill the pump according to the service procedure before first startup.

• Check shaft alignment, mounting face, port direction and hose routing before tightening lines.

• Start the machine at low speed first and check for leakage, abnormal noise and unstable pressure.

• Do not operate under heavy load until oil flow, pressure and temperature are confirmed normal.

Fitment Check Before Ordering

To reduce wrong orders, please send the machine model, serial number, old pump part number, pump nameplate photo, shaft photo, mounting face photo and hydraulic port layout photo before quotation.

FAQ

Is KFP3236-20CFESE used for Komatsu excavators?

This page should describe KFP3236-20CFESE as a hydraulic gear pump for Komatsu motor grader applications, especially GD405-1 and GD505-2 references. It should not be positioned mainly as an excavator pump unless the original pump number and machine configuration confirm that use.

Which Komatsu models are commonly listed for this pump?

The main references for this page are Komatsu GD405-1 and GD505-2 motor graders. Some public cross-reference listings may mention other Komatsu grader models, but final fitment should be verified by pump number, shaft, mounting, ports and machine serial number.

What are the common cross reference numbers?

Common reference numbers may include KFP3236-20CFESE, KFP3236-20, KRP4-27-17CBM, KFP3245CFMSS, KFP3232CFMSS, KFP2233CVKRJ, KFP3250CFMSS and KFP3260-KP1005AK. Some public references also associate 23B-60-11102 / 23B6011102 with KFP3236-20CFESE.

What should I check before ordering?

Please check the old pump number, shaft type, mounting hole pattern, hydraulic port direction, pump body shape, rotation direction and machine serial number. Clear photos of the old pump are recommended.

What can cause repeated hydraulic gear pump failure?

Repeated failure may be caused by contaminated hydraulic oil, blocked filters, air entry, restricted suction lines, relief valve problems, incorrect installation or metal particles left in the hydraulic system.