| Specification | Details |
|---|---|
| Product Name | Genuine Autotensioner |
| Part Number | 320/08657 |
| Alternate / Replacement Numbers | 320/08759, 320/08651, 320/08584 |
| Product Type | Automatic Belt Tensioner / Autotensioner |
| Product Category | Engine Parts / Belt Drive Component |
| Application | Engine Accessory Belt Tensioning |
| Machine Type | JCB Construction Machinery |
| Compatible Models | JCB 3CX, JCB 4CX and selected other JCB equipment* |
| Engine Application | Selected JCB diesel engines, including 444-series applications* |
| Function | Maintains appropriate tension on the engine drive belt |
| Brand | Gravitaz |
| Condition | Genuine / New |
| Supplier | Gravitaz Earthmovers Corporation |
| Website | www.jcbparts.in |
The Genuine Autotensioner 320/08657 is an engine-related belt tensioning component designed to maintain appropriate tension in the engine accessory drive belt. Proper belt tension helps reduce belt slippage and supports reliable operation of belt-driven components.
Part number 320/08657 is identified as a JCB autotensioner/belt tensioner, with references showing applications across JCB equipment and engines. Some listings also identify replacement or superseding numbers such as 320/08759, 320/08651 and 320/08584, so compatibility should always be confirmed against the machine's parts manual or serial number.
The 320/08657 tensioner is associated with JCB backhoe loaders including 3CX and 4CX in parts listings, while other applications include additional JCB equipment.
For dependable JCB Spare Parts, Gravitaz Earthmovers Corporation provides parts support through www.jcbparts.in. Before purchasing, verify the original part number and machine compatibility to ensure the correct fit.
