
Vowenx · Chassis and suspension
Oil pump 6251-51-1001 for Komatsu SA6D125E motor
This replacement oil pump is specified for the Komatsu SA6D125E motor and the PC400-6 application. Reference 6251-51-1001, the machine serial number, and the fasteners must be verified before ordering.
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Product details
This reference oil pump, part number 6251-51-1001, is offered for the Komatsu SA6D125E / PC400-6 application. The supplier declares a cast iron body and a weight of 7 kg. The five photos show a drive gear, four mounting ears, and two circular openings of different sizes on the opposite face.
A lubrication pump for a machine engine
The views detail the gear, the body, and the passages. They allow comparison of the geometry of the removed pump, particularly the orientation of the openings and the mounting points. The number of teeth and center-to-center dimensions are not provided as verified specifications.
The commercial classification among chassis parts does not change its function: the listing describes an engine oil pump, not the main hydraulic pump of an excavator. Do not select it for a different circuit solely based on the name PC400-6.
Announced features for this listing Item Supplier data Reference 6251-51-1001 Cited engine SA6D125E Cited machine Komatsu PC400-6 Declared material Cast iron Announced weight 7 kg Announced packaging Neutral Flow rate and pressure Not documented Use the serial number and full reference
The designation PC400-6 must be completed with the machine's serial number and the identification of the actually installed engine. Cross-reference 6251-51-1001 with the corresponding catalog before ordering. An equipment variant or a previous engine replacement may change the required part.
The supplier text lists many other pump references and brands. This is a presentation of their assortment, not a list of equivalences for 6251-51-1001. These other numbers are not added to the compatibilities of this listing.
Pre-selection checks Element Information to cross-reference Machine plate Model and serial number Engine identification SA6D125E and exact variant Removed part Full reference and mounting Gear Geometry and drive matching Mounting and passages Required position, dimensions, and sealing TBK cited, manufacturing origin to be confirmed
The title mentions TBK and an image bears the name SICOCHI. These mentions are not sufficient to establish manufacturing authenticated by TBK or Komatsu. The part is described as a replacement for the announced reference, without any invented provenance certification.
Before intervention, have the lubrication circuit diagnosed and confirm the required seals and accessories. No detailed supplementary kit is provided in the source. Installation and pressure checks must follow the engine documentation; no universal flow gain or pressure value is promised.
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Frequently asked questions
Is it the main hydraulic pump of the excavator?
No. The supplier describes a motor oil pump for the SA6D125E / PC400-6 application.
What reference should it match?
The announced reference is 6251-51-1001. It must be verified with the machine's serial number and the motor variant.
Is the body made of cast iron?
The supplier declares cast iron as the material. The stated weight is 7 kg, with no independent measurement performed on this unit.
Is the part certified as original TBK or Komatsu?
This is not established by the available data. TBK is cited in the title and SICOCHI appears in a visual; these mentions do not prove the place of manufacture.
Are the other numbers listed in the description equivalent?
No. They present the seller's assortment and are not considered equivalents of 6251-51-1001.






