How do I confirm pilotpart181698 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

12V 40A Alternator ym12961277230 for Komatsu 3D82 4D88E S3D84 SK820 SK714 4D94E

For Komatsu Alternator

Alternator YM12993077212 for Komatsu 3D82AE-3HB Engine

OEM / REF: YM12993077212SKU: pilotpart181698

12V 40A Alternator ym12961277230 for Komatsu 3D82 4D88E S3D84 SK820 SK714 4D94E is a Alternator replacement part indexed for Komatsu · 3D82AE-3HB and Komatsu · 3D82AE-3H, with 3 application records on file. Match OEM part number YM12993077212 and confirm fitment for Komatsu Engine Spare Parts before ordering.

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

$284.99USD/EA

~~$40,499.00~~Save 99%

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Aug 15 – Aug 22
10	Aug 13 – Aug 20
50	Aug 11 – Aug 18

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 Alternator is indexed for Komatsu · 3D82AE-3HB; Komatsu · 3D82AE-3H; Komatsu · 3D82AE-3HC; Komatsu · 3D84E-3LB. Compare reference number YM12993077212 against the label on your existing Komatsu component before ordering.

Additional cross references on file: 129930-77212, YM11983677201, 119836-77201. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

YM12993077212 129930-77212 YM11983677201 119836-77201 YM12961277230 129612-77230 YM12993077210 129930-77210 YM119836-77200 119836-77200 3D82AE-3HB 3D82AE-3HC

Applications

Komatsu · 3D82AE-3HB
Komatsu · 3D82AE-3H
Komatsu · 3D82AE-3HC
Komatsu · 3D84E-3LB
Komatsu · 3D84E-3N
Komatsu · 3D84E-3M
Komatsu · 3D84E-3LN
Komatsu · 3D84E-3D
Komatsu · 3D84E-3L
Komatsu · 3D84E-3K
Komatsu · 4D88E-E1FD
Komatsu · 4D88E-3D
Komatsu · 4D88E-3GB
Komatsu · 4D88E-3C-04
Komatsu · 4D84E-3E
Komatsu · S3D84E-3B
Komatsu · S3D84E-3A
Komatsu · SK820-5
Komatsu · SK818-5
Komatsu · SK815-5
Komatsu · SK714-5
Komatsu · 4D94E-1A

Specifications

Voltage	12V
Ampere	40A
Part Number	YM12993077212, 129930-77212, YM11983677201, 119836-77201, YM12961277230, 129612-77230, YM12993077210, 129930-77210, YM119836-77200, 119836-77200

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.