Part number lookup

12990122050 Replacement Parts

Cross-reference and compare 5 replacement listings for OEM / aftermarket part number 12990122050. Use this part-number page — not a generic equipment or brand hub — to review price, availability, and fitment before ordering.

5 Matching Products

Piston Kit With Ring Set YM129900-22080 YM129901-22050 for Komatsu Crawler Loader D20S-7-M D21S-7-M Yanmar Engine 4TNE94 Komatsu Engine 4D94EKomatsuPiston Kit With Ring Set YM129900-22080 YM129901-22050 for Komatsu Crawler Loader D20S-7-M D21S-7-M Yanmar Engine 4TNE94 Komatsu Engine 4D94E$388.25Piston Kit With Ring Set YM129900-22080 YM129901-22050 for Komatsu Crawler Tractor D20A-7-M D20P-7A-M Yanmar Engine 4TNE94 Komatsu Engine 4D94EKomatsuPiston Kit With Ring Set YM129900-22080 YM129901-22050 for Komatsu Crawler Tractor D20A-7-M D20P-7A-M Yanmar Engine 4TNE94 Komatsu Engine 4D94E$388.25Piston Kit With Ring Set YM129900-22080 YM129901-22050 for Komatsu Crawler Tractor D21A-7-M D21Q-7-M Yanmar Engine 4TNE94 Komatsu Engine 4D94EKomatsuPiston Kit With Ring Set YM129900-22080 YM129901-22050 for Komatsu Crawler Tractor D21A-7-M D21Q-7-M Yanmar Engine 4TNE94 Komatsu Engine 4D94E$388.25Piston Kit With Ring Set YM129900-22080 YM129901-22050 for Komatsu Wheel Loader WA65-3 WA65PT-3 WA75-3 Yanmar Engine 4TNE94 Komatsu Engine 4D94EKomatsuPiston Kit With Ring Set YM129900-22080 YM129901-22050 for Komatsu Wheel Loader WA65-3 WA65PT-3 WA75-3 Yanmar Engine 4TNE94 Komatsu Engine 4D94E$388.25Piston Kit With Ring Set YM129900-22080 YM129901-22050 for Yanmar Engine 4TNE94 Komatsu Engine 4D94EYanmarPiston Kit With Ring Set YM129900-22080 YM129901-22050 for Yanmar Engine 4TNE94 Komatsu Engine 4D94E$388.25

Part Numbers and Cross References

YM129900-22080YM129901-220501299002208012990122050

Applications and Fitment Summary

  • Part Number
  • Komatsu Crawler Loader D20S-7-M D21S-7-M Yanmar Engine 4TNE94 Komatsu Engine 4D94E Piston Kit With Ring Set YM129900-22080 YM129901-22050
  • Model: Komatsu Crawler Loader D20S-7-M D21S-7-M Engine: Yanmar Engine 4TNE94 Komatsu Engine 4D94E OEM: YM129900-22080, YM129901-22050, 12990022080, 12990122050 This Item Includes: 4 PCS Piston(Clip*8 Units Pin*4 Units) YM129900-22080 4 PCS Piston Ring for 4 Cylinder YM129901-22050 Details: YANMAR Engine Models: 4TNE94-ACG 4TNE94-DBK 4TNE94-DBW 4TNE94-DBWK 4TNE94-G1A 4TNE94-HLB 4TNE94-HYB 4TNE94-SA 4TNE94-SFW 4TNE94-WI 4TNE94-EIK 4TNE94-SF Komatsu Engine Model: 4D94E-1A, 4D94E
  • Komatsu Crawler Tractor D20A-7-M D20P-7A-M Yanmar Engine 4TNE94 Komatsu Engine 4D94E Piston Kit With Ring Set YM129900-22080 YM129901-22050
  • Model: Komatsu Crawler Tractor D20A-7-M, D20P-7A-M, D20PL-7-MD20PLL-7-M, D20Q-7-M Engine: Yanmar Engine 4TNE94 Komatsu Engine 4D94E OEM: YM129900-22080, YM129901-22050, 12990022080, 12990122050 This Item Includes: 4 PCS Piston(Clip*8 Units Pin*4 Units) YM129900-22080 4 PCS Piston Ring for 4 Cylinder YM129901-22050 Details: YANMAR Engine Models: 4TNE94-ACG 4TNE94-DBK 4TNE94-DBW 4TNE94-DBWK 4TNE94-G1A 4TNE94-HLB 4TNE94-HYB 4TNE94-SA 4TNE94-SFW 4TNE94-WI 4TNE94-EIK 4TNE94-SF Komatsu Engine Model: 4D94E-1A, 4D94E
  • Komatsu Crawler Tractor D21A-7-M D21Q-7-M Yanmar Engine 4TNE94 Komatsu Engine 4D94E Piston Kit With Ring Set YM129900-22080 YM129901-22050
  • Model: Komatsu Crawler Tractor D21A-7-M, D21P-7A-MD21PL-7-M, D21Q-7-M Engine: Yanmar Engine 4TNE94 Komatsu Engine 4D94E OEM: YM129900-22080, YM129901-22050, 12990022080, 12990122050 This Item Includes: 4 PCS Piston(Clip*8 Units Pin*4 Units) YM129900-22080 4 PCS Piston Ring for 4 Cylinder YM129901-22050 Details: YANMAR Engine Models: 4TNE94-ACG 4TNE94-DBK 4TNE94-DBW 4TNE94-DBWK 4TNE94-G1A 4TNE94-HLB 4TNE94-HYB 4TNE94-SA 4TNE94-SFW 4TNE94-WI 4TNE94-EIK 4TNE94-SF Komatsu Engine Model: 4D94E-1A, 4D94E
  • Komatsu Wheel Loader WA65-3 WA65PT-3 WA75-3 Yanmar Engine 4TNE94 Komatsu Engine 4D94E Piston Kit With Ring Set YM129900-22080 YM129901-22050
  • Model: Komatsu Wheel Loader WA65-3 WA65PT-3 WA75-3 Engine: Yanmar Engine 4TNE94 Komatsu Engine 4D94E OEM: YM129900-22080, YM129901-22050, 12990022080, 12990122050 This Item Includes: 4 PCS Piston(Clip*8 Units Pin*4 Units) YM129900-22080 4 PCS Piston Ring for 4 Cylinder YM129901-22050 Details: YANMAR Engine Models: 4TNE94-ACG 4TNE94-DBK 4TNE94-DBW 4TNE94-DBWK 4TNE94-G1A 4TNE94-HLB 4TNE94-HYB 4TNE94-SA 4TNE94-SFW 4TNE94-WI 4TNE94-EIK 4TNE94-SF Komatsu Engine Model: 4D94E-1A, 4D94E
  • Yanmar Engine 4TNE94 Komatsu Engine 4D94E Piston Kit With Ring Set YM129900-22080 YM129901-22050
  • Models with Yanmar Engine 4TNE94 Komatsu Engine 4D94E OEM: YM129900-22080, YM129901-22050, 12990022080, 12990122050 This Item Includes: 4 PCS Piston(Clip*8 Units Pin*4 Units) YM129900-220804 PCS Piston Ring for 4 Cylinder YM129901-22050 Details: YANMAR Engine Models: 4TNE94-ACG 4TNE94-DBK 4TNE94-DBW 4TNE94-DBWK 4TNE94-G1A 4TNE94-HLB 4TNE94-HYB 4TNE94-SA 4TNE94-SFW 4TNE94-WI 4TNE94-EIK 4TNE94-SF Komatsu Engine Model: 4D94E-1A, 4D94E

Frequently Asked Questions

What parts replace OEM number 12990122050?

This page lists 5 replacement listings indexed under 12990122050. Compare cross references, applications, and pricing before ordering.

How do I confirm fitment for 12990122050?

Match the stamped part number first, then verify machine model, engine code, serial number, mounting points, and photos of your old part before checkout.

Can I request a quote if 12990122050 is not an exact match?

Yes. Use the fitment inquiry form with your machine plate, engine model, and photos. Support can review alternatives or cross references.

Confirm fitment & quote details

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