07400-40500 Hydraulic Pump Suitable for Komatsu Bulldozer D60 D70

07400-40500 / 0740040500 Hydraulic Pump for Komatsu D60 D70 Dozer

This 07400-40500 / 0740040500 hydraulic pump is supplied for Komatsu bulldozer and crawler dozer hydraulic system applications. Public parts references commonly list this pump for Komatsu D60 and D70 series machines, including D60A, D60E, D60F, D60P, D60PL, D70, D70LE and BF60 model references.

Different suppliers may describe this item as a hydraulic pump, hydraulic tandem pump, or steering pump. Because Komatsu D60 and D70 machines can vary by serial number, production version and hydraulic arrangement, final fitment should be confirmed by the original pump number, pump body shape, shaft type, port layout, mounting face and machine serial number before ordering.

Application and Fitment Reference

• Primary Part Number: 07400-40500 / 0740040500

• Product Type: Hydraulic Pump / Tandem Pump / Steering Pump

• Machine Category: Komatsu Bulldozer / Crawler Dozer

• Compatible Model References: BF60, D60A, D60E, D60F, D60P, D60PL, D70, D70LE

• Supply Type: Genuine, OEM, or replacement supply may be available depending on current stock.

Common Symptoms That May Require Pump Inspection

• Weak steering or hydraulic response: related dozer functions respond slowly or inconsistently.

• Pressure loss: the system cannot maintain stable hydraulic pressure under operation.

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

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

• Oil contamination: dirty oil, blocked filters or air entry may accelerate pump wear.

Fitment Check Before Ordering

Before ordering this Komatsu 07400-40500 hydraulic pump, please compare it with your original unit. Important confirmation points include the original pump number, shaft type, mounting flange, port direction, hydraulic line connection, pump body shape and machine serial number.

For faster confirmation, please send clear photos of the old pump nameplate, shaft, ports, mounting face and machine model plate. This helps reduce wrong orders and confirms whether 07400-40500 / 0740040500 is suitable for your Komatsu D60 or D70 dozer.

Installation and Maintenance Notes

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

• Inspect hydraulic oil and filters before installing the replacement pump.

• Protect all pump ports from dust, water and metal particles during installation.

• Check shaft, port and mounting alignment before tightening hydraulic lines.

• After installation, run the machine at low speed first and check for leakage, abnormal noise and pressure instability.

Ordering Information

Topvelsun supplies hydraulic pumps, tandem pumps, steering pumps, gear pumps and pump assemblies for Komatsu, Caterpillar, Hitachi, Hyundai, Kobelco and other construction equipment. For this 07400-40500 pump, please provide your machine model, serial number, original pump number and photos before quotation.

FAQ

Is 07400-40500 mainly used for Komatsu excavators?

Public parts references mainly list 07400-40500 / 0740040500 for Komatsu D60 and D70 dozer series applications. It should not be described mainly as an excavator pump unless the original pump number and machine configuration confirm that application.

What type of pump is 07400-40500?

Different public listings describe it as a hydraulic pump, tandem hydraulic pump, or steering pump. Please verify the pump body, ports, shaft and mounting against your original unit before ordering.

Which Komatsu models are commonly listed for this pump?

Common references include Komatsu BF60, D60A, D60E, D60F, D60P, D60PL, D70 and D70LE. Some listings include additional D60 serial or version references, so final fitment should be checked by machine serial number.

What should I send for fitment confirmation?

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