How do I confirm pilotpart780443 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

Crankshaft For Komatsu D21A with 4D94E Engine

For Komatsu Crankshaft

Crankshaft D21A for Komatsu

OEM / REF: D21ASKU: pilotpart780443

Crankshaft For Komatsu D21A with 4D94E Engine is a Crankshaft replacement part for Komatsu Engine Spare Parts, categorized under Engine Spare Parts > Crankshaft. Use OEM part number D21A and confirm machine model, engine model, and serial details before checkout.

Stock: In stock
Condition: New
Fitment: Komatsu Engine Spare Parts
Category: Crankshaft

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$331.00USD/EA

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

Buy online now or add to your quote list for bulk pricing and fitment confirmation.

Confirm fitment before ordering →

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

Crankshaft Description

This Crankshaft is indexed for Komatsu Komatsu D21A with 4D94E Engine. Compare reference number D21A against the label on your existing Komatsu component before ordering.

Additional cross references on file: 4D94E. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

D21A4D94E

Applications

Komatsu Komatsu D21A with 4D94E Engine

Fitment Notes

Brand or application signal: Komatsu Engine Spare Parts
Product family: Crankshaft
System category: Engine Spare Parts > Block & Internal Parts > Crankshaft
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.