Crankshaft YM129407-21000 for Yanmar

OEM / REF: YM129407-21000SKU: pilotpart197441

Crankshaft YM129407-21000 for Engine Yanmar 4TNE84 Komatsu 4D84E is a Crankshaft replacement part indexed for Part Number and YANMAR ENGINE Model: 4TNE84-AF4TNE84-EAFKOMATSU ENGINE Model: 4D84E-3FB4D84E-3B4D84E-3C4D84E-3DS4D84E-1FD4D84E-3E4D84ES4D84E Models: DOOSAN 1340XL LoaderKOBELCO SK40SR-2 ExcavatorKOHLER 15CCO...

Stock
In stock
Condition
New
Fitment
Yanmar Engine Spare Parts
Category
Crankshaft
  • Fitment support before you order
  • Worldwide delivery options

Crankshaft Description

This Crankshaft is indexed for Part Number; YANMAR ENGINE Model: 4TNE84-AF4TNE84-EAFKOMATSU ENGINE Model: 4D84E-3FB4D84E-3B4D84E-3C4D84E-3DS4D84E-1FD4D84E-3E4D84ES4D84E Models: DOOSAN 1340XL LoaderKOBELCO SK40SR-2 ExcavatorKOHLER 15CCO,15CCFO,15R091,15ROY,15ROZ GeneratorKOMATSU BC70 Drill MachineKomatsu PC45-1,PC40-7,PC40R-8,PC45R-8,PC40MRX-1-E,PC45MRX-1-E Mini ExcavatorKomatsu RAM700-3 BackhoeKomatsu SK510,SK815,SK820,SK820-5 Skid SteerMUSTANG 2040,2042,2044,2050 LoaderYANMAR YEG400DSHC,YEG400DSHS,YEG400DTHC,YEG400DTHS Generetorariens gravely PRO CHIP 944; Doosan DOOSAN Loader 1340XL KOBELCO Excavator SK40SR-2 Specification: There are two height of pistions, 84mm and 87mm. Bore: 3.30 in 84.00 mm Stroke: 3.54 in 90.00 mm Item Included: - 1set Full gasekt kit - 4pcs Liner Cylinder/Sleeve - 4pcs Piston, STD size - 4pcs Piston Pin - 4set Ring set for 4pistons, STD size - 8pcs Pin Clips - 8pcs Valves (4pcs Intake Valves + 4pcs Exhaust Valves) - 8pcs Valve Guides - 8pcs Valves Seats (4pcs Intake Valves Seats+ 4pcs Exhaust Valves Seats) - 1set Crankshaft bearing STD size - 1set Connect Rod Bearing STD size. Compare reference number YM129407-21000 against the label on your existing Yanmar component before ordering.

Additional cross references on file: 12940721000, 4TNE84-AF4TNE84-EAFKOMATSU, 4D84E-3FB4D84E-3B4D84E-3C4D84E-3DS4D84E-1FD4D84E-3E4D84ES4D84E. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Applications

  • Part Number
  • YANMAR ENGINE Model: 4TNE84-AF4TNE84-EAFKOMATSU ENGINE Model: 4D84E-3FB4D84E-3B4D84E-3C4D84E-3DS4D84E-1FD4D84E-3E4D84ES4D84E Models: DOOSAN 1340XL LoaderKOBELCO SK40SR-2 ExcavatorKOHLER 15CCO,15CCFO,15R091,15ROY,15ROZ GeneratorKOMATSU BC70 Drill MachineKomatsu PC45-1,PC40-7,PC40R-8,PC45R-8,PC40MRX-1-E,PC45MRX-1-E Mini ExcavatorKomatsu RAM700-3 BackhoeKomatsu SK510,SK815,SK820,SK820-5 Skid SteerMUSTANG 2040,2042,2044,2050 LoaderYANMAR YEG400DSHC,YEG400DSHS,YEG400DTHC,YEG400DTHS Generetorariens gravely PRO CHIP 944
  • Doosan DOOSAN Loader 1340XL KOBELCO Excavator SK40SR-2 Specification: There are two height of pistions, 84mm and 87mm. Bore: 3.30 in 84.00 mm Stroke: 3.54 in 90.00 mm Item Included: - 1set Full gasekt kit - 4pcs Liner Cylinder/Sleeve - 4pcs Piston, STD size - 4pcs Piston Pin - 4set Ring set for 4pistons, STD size - 8pcs Pin Clips - 8pcs Valves (4pcs Intake Valves + 4pcs Exhaust Valves) - 8pcs Valve Guides - 8pcs Valves Seats (4pcs Intake Valves Seats+ 4pcs Exhaust Valves Seats) - 1set Crankshaft bearing STD size - 1set Connect Rod Bearing STD size

Specifications

Part NumberYM129407-21000, 12940721000, 129407-21000

Fitment Notes

Brand or application signal
Yanmar Engine Spare Parts
Product family
Crankshaft
System category
Engine Spare Parts > Block & Internal Parts > Crankshaft
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.