Komatsu 923976.4005 - Tensioner-belt
Fast, Nationwide Shipping
Orders ship from our nationwide parts network. Orders placed before 4:00 PM, Monday through Friday, ship the same day.Ask an expert
A drive belt transmitting power from the crankshaft to engine ancillaries on Komatsu lift trucks — alternator, water pump, fan and compressor.
Key details
- Drives alternator, water pump, fan and other ancillaries
- Length and profile are specific to the pulley layout
- Tension determines belt life and whether the ancillaries are driven properly
- Inspect for glazing, cracking and fraying at every service
Specifications
| Part number | 923976.4005 |
| Component type | Drive belt |
| Part type | OEM-grade aftermarket |
| Fits brand | Komatsu |
| Category | Industrial Forklifts |
Where it is used
Components of this type are fitted to the engine and its ancillaries on Komatsu lift trucks. This is category-level context, not a fitment list — confirm the part number against your machine's model and serial number before ordering.
Service notes
Set tension to specification after fitting and re-check after a short run-in. An overtight belt destroys the water pump and alternator bearings; a slack one glazes and slips.
Fitment & availability
This is an OEM-grade aftermarket replacement manufactured to OE specification. It is cross-referenced to Komatsu part number 923976.4005 for identification and is not supplied by the original equipment manufacturer.
Check the part number against your model and serial number before ordering. If this item is not showing as available, use Check Availability and our team will confirm lead time and fitment.