OEM Stick Cylinder for Komatsu PC4000 (ref. 992 305 40)
A stick (arm) cylinder is the hydraulic actuator that extends and retracts the stick, controlling reach and crowd motion during digging. Cylinders typically wear at the rod seals and the chrome-plated rod surface; internal leakage shows up as cylinder drift or slow movement, and contamination or rod scoring accelerates seal wear.
Key facts
- Part: Stick Cylinder, new replacement for Komatsu PC4000
- Komatsu OEM ref.: 992 305 40 (also written 99230540)
- Interchangeable references: 8 additional Komatsu numbers (listed below), incl. 990 002 40, 989 965 40
- Fits: Komatsu PC4000 (mining excavator)
- Condition: New, to OEM specification
- HD Mining Parts SKU: KMP-SC-1N2URW
- Supplied by: HD Mining Parts (worldwide export, quote-based)
Interchangeable reference numbers
This part is interchangeable with the following Komatsu reference numbers (including superseded and alternative references) and can be supplied in place of any of them. Each is shown with and without spaces:
- 990 002 40 / 99000240
- 989 965 40 / 98996540
- 979 580 40 / 97958040
- 973 810 40 / 97381040
- 962 434 40 / 96243440
- 960 240 40 / 96024040
- 931 550 40 / 93155040
- 927 985 40 / 92798540
Each part is matched by reference number and technically verified before dispatch, with traceable sourcing and export-ready delivery; availability and lead time on request.
Frequently asked questions
What part is Komatsu OEM number 992 305 40?
It is the stick cylinder for Komatsu PC4000; HD Mining Parts supplies a new replacement under SKU KMP-SC-1N2URW.
Is 990 002 40 interchangeable with 992 305 40?
Yes, 990 002 40 (99000240) is an interchangeable Komatsu reference for this stick cylinder and can be replaced by it.
Request Komatsu OEM ref. 992 305 40, or browse all Hydraulic Cylinders and Komatsu PC4000 spare parts, or request a quotation.