How do I confirm pilotpart270017 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 9T Starter Motor 129953-77010 for Komatsu Backhoe Loader WB140 WB140PS WB150 WB150AWS WB150PS WB150WSC WB91R WB93R WB97R WB97S

For Komatsu Starter Motor

Starter Motor S13-138 for Komatsu WB140

Q: What part numbers are associated with this Starter Motor?

S13-138, S13-138A, RYM129953-77019, YM129953-77010, YM129953-77019, 19694, 129953-77010, 129953-77011, 129953-77012, 129953-77015, 129953-77019

OEM / REF: S13-138SKU: pilotpart270017

12V 9T Starter Motor 129953-77010 for Komatsu Backhoe Loader WB140 WB140PS WB150 WB150AWS WB150PS WB150WSC WB91R WB93R WB97R WB97S is a Starter Motor replacement part indexed for Komatsu WB140 and Komatsu WB140PS, with 3 application records on file. Match OEM part number S13-138 and confirm fitment for Komatsu Engin...

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

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$301.99USD/EA

~~$45,699.00~~Save 99%

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Aug 24 – Aug 31
10	Aug 22 – Aug 29
50	Aug 20 – Aug 27

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.

Starter Motor Description

This Starter Motor is indexed for Komatsu WB140; Komatsu WB140PS; Komatsu WB150; Komatsu WB150AWS. Compare reference number S13-138 against the label on your existing Komatsu component before ordering.

Additional cross references on file: S13-138A, RYM129953-77019, YM129953-77010. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

S13-138 S13-138A RYM129953-77019 YM129953-77010 YM129953-7701919694129953-77010 129953-77011 129953-77012 129953-77015 129953-77019

Applications

Komatsu WB140
Komatsu WB140PS
Komatsu WB150
Komatsu WB150AWS
Komatsu WB150PS
Komatsu WB150WSC
Komatsu WB91R
Komatsu WB93R
Komatsu WB97R
Komatsu WB97S
Komatsu

Specifications

Voltage	12V
Power	3.0KW
Teeth	9T
Design	OSGR
Rotation	CW
Part Number (Hitachi)	S13-138, S13-138A
Part Number (Komatsu)	RYM129953-77019, YM129953-77010, YM129953-77019, YM12995377010, YM12995377019
Part Number (Lester)	19694
Part Number (Yanmar)	129953-77010, 129953-77011, 129953-77012, 129953-77015, 129953-77019
Part Number	Hitachi: S13-138, S13-138A Komatsu: RYM129953-77019, YM129953-77010, YM129953-77019, YM12995377010, YM12995377019 Lester: 19694 Yanmar: 129953-77010, 129953-77011, 129953-77012, 129953-77015, 129953-77019

Fitment Notes

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