How do I confirm pilotpart315398 fits my machine?

Compare the OEM or reference part number, machine model, engine model, and serial number. You can also submit a fitment inquiry before ordering.

In Stock

For Komatsu Hydraulic Pump

Hydraulic Pump 705-51-21040 for Komatsu

Q: What part numbers are associated with this Hydraulic Pump?

705-51-21040, GD500R-2A, 20028-UP

OEM / REF: 705-51-21040SKU: pilotpart315398

Hydraulic Pump 705-51-21040 For Komatsu Grader GD500R-2A is a Hydraulic Pump replacement part indexed for Part Number and Komatsu Grader GD500R-2A Hydraulic Pump 705-51-21040. Match OEM part number 705-51-21040 and confirm fitment for Komatsu Hydraulic & Pneumatic Parts before ordering.

Stock: In stock
Condition: New
Fitment: Komatsu Hydraulic & Pneumatic Parts
Category: Hydraulic Pump

Fitment support before you order
Worldwide delivery options

Quote required

Price on requestRFQ

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Oct 22 – Oct 29
10	Oct 20 – Oct 27
50	Oct 18 – Oct 25

Estimates from today; confirm exact lead time before payment.

Quantity

Submit RFQ now

This part requires a quote. Add it to your quote list or send machine details for pricing and lead time.

Confirm fitment before ordering →

Lead times can vary by freight route and customs. Contact support for expedited shipping.

Hydraulic Pump Description

This Hydraulic Pump is indexed for Part Number; Komatsu Grader GD500R-2A Hydraulic Pump 705-51-21040. Compare reference number 705-51-21040 against the label on your existing Komatsu component before ordering.

Additional cross references on file: GD500R-2A, 20028-UP. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

705-51-21040 GD500R-2A 20028-UP

Applications

Part Number
Komatsu Grader GD500R-2A Hydraulic Pump 705-51-21040

Specifications

Part Number	705-51-21040,7055121040

Fitment Notes

Brand or application signal: Komatsu Hydraulic & Pneumatic Parts
Product family: Hydraulic Pump
System category: Hydraulic & Pneumatic Parts > Hydraulic Pumps & Motors > Hydraulic Pump
Recommended verification: OEM number, engine model, serial number, old part photos, and dimensions.

Shipping & Returns

Availability: InStock
Shipping: Shipping quotes can be confirmed before payment for heavy or urgent orders.
Returns: Returns are easier when fitment is confirmed before ordering.
B2B support: Bulk, fleet, and repair-shop requests can be handled through the inquiry form.

Frequently Asked Questions

How do I confirm this part fits my machine?

Match the OEM or reference number first, then verify machine model, engine model, serial number, connector layout, mounting points, and old part photos.

Can I order if my part number is not listed?

Yes. Send the old part number, machine plate, and photos through the fitment inquiry form. Support can review possible replacements or alternatives.

Is this an OEM part?

Products are indexed as replacement parts unless explicitly marked otherwise. Always compare reference numbers and confirm fitment before purchase.