Part number lookup
3D84-1B Replacement Parts
Cross-reference and compare 8 replacement listings for OEM / aftermarket part number 3D84-1B. Use this part-number page — not a generic equipment or brand hub — to review price, availability, and fitment before ordering.
8 Matching Products
KomatsuBall Bearing YM24101-063050 for Komatsu Engine 3D72-1 3D84-1 3D75-1$67.00
KomatsuBare Cylinder Head YM729335-11700 for Komatsu 3D84-1B 3D84-1A Engine PC30-6 Excavator$852.25
KomatsuBare Cylinder Head YM771058-11700 for Komatsu 3D84-1A 3D84-1B 3D84-1C 3D84-1D 3D84-1F 3D84-1G 3D84-1H 3D84-1J Engine PC20-6 PC30-6 Excavator$852.25
KomatsuConnecting Rod YM729350-23100 for Komatsu 3D84-1 Engine$293.33
YanmarCrankshaft YM729350-21700 for Yanmar Komatsu 3D84-1 Engine$873.51
KomatsuCylinder Head Gasket YM129322-01330 for Komatsu Engine 3D84-1A 3D84-1B 3D84-1C 3D84-1D 3D84-1F 3D84-1G$43.00
KomatsuFuel Injector Nozzle YM124770-53000 for Komatsu 3D72-1 3D75-1A 3D75-1B 3D84-1A 3D84-1B 3D84-1C 3D84-1D 3D84-1F 3D84-1G 3D84-1H 3D84-1J 3D84N-1YC SK04-1$58.27
KomatsuStarter Motor YM121254-77011 YM121254-77012 YM121254-77010 for Komatsu 3D84 3D84N$187.00Part Numbers and Cross References
YM24101-06305024101-0630503D84-1J3D84-1H3D84-1G3D84-1GA3D84-1F3D84-1FA3D84-1C3D84-1D3D84-1B3D84-1AYM729335-11700TB035TB025PC20-5PC20-6PC30-6PC38UU-1WA30-2YM771058-11700YM129300-1100001001-UP13021-UP25916-UP729350-23100YM729350-23100YM729350-21700729350-217003D84-1GA-UYM129322-01330YM129350-01331YM124770-53000124770-530003D72-13D75-1A3D75-1B121254-77010121254-77011121254-77012YM121254-77010YM121254-77011YM121254-77012
Applications and Fitment Summary
- Komatsu · s: Fit for Engine: Komatsu 3D72-1, 3D84-1J, 3D84-1H, 3D84-1G, 3D84-1GA, 3D84-1F, 3D84-1FA, 3D84-1C, 3D84-1D, 3D84-1B, 3D84-1A, 3D84-1GA-U, 3D84N-1YC, 3D75-1B, 3D75-1A
- Part Number
Frequently Asked Questions
What parts replace OEM number 3D84-1B?
This page lists 8 replacement listings indexed under 3D84-1B. Compare cross references, applications, and pricing before ordering.
How do I confirm fitment for 3D84-1B?
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 3D84-1B 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.