OEM Air Conditioning Compressor for Komatsu PC3000, PC4000, PC5500 and PC8000 (ref. 971 778 40)
An air-conditioning compressor circulates refrigerant through the cab climate system. AC compressors fail at the clutch, shaft seal and internal bearings; refrigerant contamination or loss of lubrication is the usual cause.
Key facts
- Part: Air Conditioning Compressor, new replacement for Komatsu PC3000, PC4000, PC5500 and PC8000
- Komatsu OEM ref.: 971 778 40 (also written 97177840)
- Interchangeable references: 3 additional Komatsu numbers (listed below), incl. 971 730 40, 954 306 40
- Fits: Komatsu PC3000, PC4000, PC5500 and PC8000 (mining excavator)
- Condition: New, to OEM specification
- HD Mining Parts SKU: KMP-ACC-1LUUWG
- 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This part is interchangeable with the following Komatsu reference numbers (including superseded and alternative references) and can be supplied in place of any of them.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:
- 971 730 40 / 97173040
- 954 306 40 / 95430640
- 942 064 40 / 94206440
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 971 778 40?
It is the air conditioning compressor for Komatsu PC3000, PC4000, PC5500 and PC8000; HD Mining Parts supplies a new replacement under SKU KMP-ACC-1LUUWG.
Is 971 730 40 interchangeable with 971 778 40?
Yes, 971 730 40 (97173040) is an interchangeable Komatsu reference for this air conditioning compressor and can be replaced by it.
Request Komatsu OEM ref. 971 778 40, or browse all Compressors and Komatsu PC3000 spare parts, Komatsu PC4000 spare parts, Komatsu PC5500 spare parts, Komatsu PC8000 spare parts, or request a quotation.