OEM Tensioner for Komatsu PC4000 (ref. 984 910 40)
A track tensioner maintains correct track-chain tension through its recoil spring and tension cylinder. Track tensioners lose tension through seal leakage or spring/grease loss, causing track slap and accelerated undercarriage wear.
Key facts
- Part: Tensioner, new replacement for Komatsu PC4000
- Komatsu OEM ref.: 984 910 40 (also written 98491040)
- Interchangeable references: 2 additional Komatsu numbers (listed below), incl. 912 655 40, 105 065 42
- Fits: Komatsu PC4000 (mining excavator)
- Condition: New, to OEM specification
- HD Mining Parts SKU: KMP-T-1MN068
- 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This part is interchangeable with the following Komatsu reference numbers (including superseded and alternative references) and can be supplied in place of any of them.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:
- 912 655 40 / 91265540
- 105 065 42 / 10506542
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 984 910 40?
It is the tensioner for Komatsu PC4000; HD Mining Parts supplies a new replacement under SKU KMP-T-1MN068.
Is 912 655 40 interchangeable with 984 910 40?
Yes, 912 655 40 (91265540) is an interchangeable Komatsu reference for this tensioner and can be replaced by it.
Request Komatsu OEM ref. 984 910 40, or browse all Recoil and Tension Parts and Komatsu PC4000 spare parts, or request a quotation.