23B-60-11100 / 23B-60-11101 Hydraulic Gear Pump for Komatsu GD-Series Grader

23B-60-11100 / 23B-60-11101 Hydraulic Gear Pump for Komatsu GD-Series Grader

This aftermarket 23B-60-11100 / 23B-60-11101 hydraulic gear pump ass'y is supplied for Komatsu GD-Series motor grader hydraulic applications. Your current product page lists the pump for Komatsu GD405A-2 and GD505A, while other public aftermarket references also associate the 23B-60-11100 / 23B6011100 pump family with GD505A-3, GD521A-1, GD605A-5, GD605A-5S, GD611A-1, GD621A-1, GD621R-1, GD623A-1 and GD661A-1 grader models.

Because Komatsu GD-Series graders may use different pump arrangements by model and serial number, fitment should not be confirmed by model name alone. Please compare the original part number, pump body shape, shaft type, mounting flange, port layout and machine serial number before ordering.

Application and Fitment Reference

• Primary Part Numbers: 23B-60-11100 / 23B6011100

• Related Pump Ass'y Reference: 23B-60-11101 / 23B6011101

• Product Type: Hydraulic Gear Pump Ass'y

• Machine Category: Komatsu GD-Series Motor Grader

• Current Page Models: GD405A-2, GD505A

• Other Publicly Listed Model References: GD505A-3, GD521A-1, GD605A-5, GD605A-5S, GD611A-1, GD621A-1, GD621R-1, GD623A-1, GD661A-1

Common Symptoms That May Require Gear Pump Inspection

• Slow hydraulic response: grader hydraulic functions respond slowly or inconsistently.

• Weak hydraulic assist: the hydraulic system cannot maintain stable pressure under operation.

• Oil leakage: visible leakage around the gear pump body, ports or mounting area.

• Abnormal pump noise: whining, vibration or cavitation-like sound during operation.

• Overheating or contamination: dirty hydraulic oil may accelerate internal gear pump wear.

Fitment Check Before Ordering

Before ordering this 23B-60-11100 Komatsu grader pump, please compare it with your original unit. Important confirmation points include the original part number, shaft, mounting flange, oil port direction, hydraulic line connection, pump body shape and machine serial number.

For faster confirmation, please send clear photos of the old pump nameplate, mounting face, shaft, ports and machine model plate. This helps reduce wrong orders and confirms whether 23B-60-11100 / 23B-60-11101 is suitable for your Komatsu GD-Series grader.

Ordering Information

Topvelsun supplies aftermarket hydraulic gear pumps, pilot pumps and pump assemblies for Komatsu, Caterpillar, Hitachi, Hyundai, Kobelco and other construction equipment. For this 23B-60-11100 / 23B-60-11101 pump, please provide your machine model, serial number and pump photos before quotation.

FAQ

Is 23B-60-11100 used for Komatsu excavators?

This page should not describe 23B-60-11100 mainly as an excavator pump. Public aftermarket references commonly associate this part number with Komatsu GD-Series motor graders. Please verify by original pump number and machine serial number.

What is the relationship between 23B-60-11100 and 23B-60-11101?

23B-60-11100 / 23B6011100 and 23B-60-11101 / 23B6011101 are commonly listed as related Komatsu hydraulic pump references. Final fitment should be confirmed by the original pump, mounting, shaft and port layout before ordering.

Which Komatsu models are commonly listed for this pump?

Common public references include Komatsu GD405A-2, GD505A, GD505A-3, GD521A-1, GD605A-5, GD605A-5S, GD611A-1, GD621A-1, GD621R-1, GD623A-1 and GD661A-1 grader models. Model lists may vary by supplier, so serial-number verification is recommended.

What should I send for fitment confirmation?

Please send the machine model, serial number, original part number, pump nameplate photo, shaft photo, port layout photo and mounting face photo.