In StockPiston Kit With Ring Set YM129906-22080 YM129906-22050 for Komatsu Crawler Dozer D21A-8-W D21P-8-W Yanmar Engine 4TNV94L Komatsu Engine 4D94LE
For KomatsuPiston Ring

Piston Ring YM129906-22080 for Komatsu

OEM / REF: YM129906-22080SKU: pilotpart112272-01

Piston Kit With Ring Set YM129906-22080 YM129906-22050 for Komatsu Crawler Dozer D21A-8-W D21P-8-W Yanmar Engine 4TNV94L Komatsu Engine 4D94LE is a Piston Ring replacement part indexed for Part Number and Komatsu Crawler Dozer D21A-8-W D21P-8-W Yanmar Engine 4TNV94L Komatsu Engine 4D94LE Piston Kit With Ring Set YM1...

Stock
In stock
Condition
New
Fitment
Komatsu Engine Spare Parts
Category
Piston Ring
  • Fitment support before you order
  • Worldwide delivery options

Piston Ring Description

This Piston Ring is indexed for Part Number; Komatsu Crawler Dozer D21A-8-W D21P-8-W Yanmar Engine 4TNV94L Komatsu Engine 4D94LE Piston Kit With Ring Set YM129906-22080 YM129906-22050; Model: Komatsu Crawler Dozer D21A-8-W D21P-8-W Engine: Yanmar Engine 4TNV94L Komatsu Engine 4D94LE Details: Yanmar Engine Models: 4TNV94L-NCKM 4TNV94L-NCKMK 4TNV94L-NCKSK 4TNV94L-NDL 4TNV94L-NHZ 4TNV94L-NWI 4TNV94L-PDBWE 4TNV94L-PDBWK 4TNV94L-PHYBC 4TNV94L-PHYBW 4TNV94L-PIK 4TNV94L-PIKA1 4TNV94L-PIKA2 4TNV94L-PLY 4TNV94L-SBK 4TNV94L-SFN 4TNV94L-SXZ 4TNV94L-XDB 4TNV94L-XDBC 4TNV94L-XDBK 4TNV94L-XDBKC 4TNV94L-XHYB 4TNV94L-XHYBC Komatsu Engine Models: 4D94LE-2Z-AD 4D94LE-2Z-AD 4D94LE-2Z-AE 4D94LE-2Z-AE 4D94LE-2Z-AB 4D94LE-2Z-AC 4D94LE-2 4D94LE-2Z-BB 4D94LE. Compare reference number YM129906-22080 against the label on your existing Komatsu component before ordering.

Additional cross references on file: YM129906-22050, 12990622080, 12990622050. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Applications

  • Part Number
  • Komatsu Crawler Dozer D21A-8-W D21P-8-W Yanmar Engine 4TNV94L Komatsu Engine 4D94LE Piston Kit With Ring Set YM129906-22080 YM129906-22050
  • Model: Komatsu Crawler Dozer D21A-8-W D21P-8-W Engine: Yanmar Engine 4TNV94L Komatsu Engine 4D94LE Details: Yanmar Engine Models: 4TNV94L-NCKM 4TNV94L-NCKMK 4TNV94L-NCKSK 4TNV94L-NDL 4TNV94L-NHZ 4TNV94L-NWI 4TNV94L-PDBWE 4TNV94L-PDBWK 4TNV94L-PHYBC 4TNV94L-PHYBW 4TNV94L-PIK 4TNV94L-PIKA1 4TNV94L-PIKA2 4TNV94L-PLY 4TNV94L-SBK 4TNV94L-SFN 4TNV94L-SXZ 4TNV94L-XDB 4TNV94L-XDBC 4TNV94L-XDBK 4TNV94L-XDBKC 4TNV94L-XHYB 4TNV94L-XHYBC Komatsu Engine Models: 4D94LE-2Z-AD 4D94LE-2Z-AD 4D94LE-2Z-AE 4D94LE-2Z-AE 4D94LE-2Z-AB 4D94LE-2Z-AC 4D94LE-2 4D94LE-2Z-BB 4D94LE

Specifications

IncludesPiston*4 Units<br />Piston ring*4 Units<br />Piston pin*4 Units<br />Cylinder liner*4 Units<br />Piston Clip*8 Units<br />Piston Pin Bush*4 Units
Part NumberYM129906-22080, YM129906-22050, 12990622080, 12990622050

Fitment Notes

Brand or application signal
Komatsu Engine Spare Parts
Product family
Piston Ring
System category
Engine Spare Parts > Cylinder Components > Piston Ring
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.

Confirm fitment & quote details

Send machine details and nameplate photos before ordering high-risk or quote-only parts.