OEM Clam Cylinder for Komatsu PC4000 (ref. 992 315 40)
A clam cylinder is the hydraulic actuator that operates the clamshell / two-piece boom function for digging and dumping. Cylinders typically wear at the rod seals and rod surface; internal leakage shows up as drift or slow movement, and contamination accelerates seal wear.
Key facts
- Part: Clam Cylinder, new replacement for Komatsu PC4000
- Komatsu OEM ref.: 992 315 40 (also written 99231540)
- Interchangeable references: 8 additional Komatsu numbers (listed below), incl. 990 004 40, 989 975 40
- Fits: Komatsu PC4000 (mining excavator)
- Condition: New, to OEM specification
- HD Mining Parts SKU: KMP-CC-1N2VJO
- 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This part is interchangeable with the following Komatsu reference numbers (including superseded and alternative references) and can be supplied in place of any of them.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:
- 990 004 40 / 99000440
- 989 975 40 / 98997540
- 982 200 40 / 98220040
- 973 803 40 / 97380340
- 962 432 40 / 96243240
- 948 470 40 / 94847040
- 931 560 40 / 93156040
- 927 995 40 / 92799540
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 992 315 40?
It is the clam cylinder for Komatsu PC4000; HD Mining Parts supplies a new replacement under SKU KMP-CC-1N2VJO.
Is 990 004 40 interchangeable with 992 315 40?
Yes, 990 004 40 (99000440) is an interchangeable Komatsu reference for this clam cylinder and can be replaced by it.
Request Komatsu OEM ref. 992 315 40, or browse all Hydraulic Cylinders and Komatsu PC4000 spare parts, or request a quotation.