How do I confirm pilotpart730579 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

69mm 12V 40A Alternator YM129423-77200 for Komatsu Engine 3D76E 3D82AE 3D84E 3D88E 4D88 4D88E S3D84 S3D84E

For Komatsu Alternator

Alternator 12942377210 for Komatsu

Q: What part numbers are associated with this Alternator?

12942377210, YM12942377210, 129423-77200, YM129423-77200, 0210800820, 101211117, 1012111170, 102211001, 101211-001, 1022110010, 101211-0010, LRA03058

OEM / REF: 12942377210SKU: pilotpart730579

69mm 12V 40A Alternator YM129423-77200 for Komatsu Engine 3D76E 3D82AE 3D84E 3D88E 4D88 4D88E S3D84 S3D84E is a Alternator replacement part for Komatsu Engine Spare Parts, categorized under Engine Spare Parts > Alternator. Use OEM part number 12942377210 and confirm machine model, engine model, and serial details be...

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

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$99.00USD/EA

Estimated delivery by quantity

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

Estimates from today; confirm exact lead time before payment.

Quantity

Confirm fitment before ordering →

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

Alternator Description

This listing helps buyers source a Alternator for Komatsu Engine Spare Parts by OEM number 12942377210, SKU pilotpart730579, and Engine Spare Parts > Engine Auxiliary Components > Alternator category filters.

Additional cross references on file: YM12942377210, 129423-77200, YM129423-77200. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

12942377210 YM12942377210 129423-77200 YM129423-772000210800820101211117 1012111170 102211001 101211-001 1022110010 101211-0010 LRA03058

Fitment Notes

Brand or application signal: Komatsu Engine Spare Parts
Product family: Alternator
System category: Engine Spare Parts > Engine Auxiliary Components > Alternator
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.