| Specification | Details |
|---|---|
| Product Name | Expansion Tank Cap |
| Part Number | 123/06578 |
| Alternate Part Number | 123/06578 / 12306578 |
| Product Type | Expansion Tank Pressure Cap |
| Function | Regulates pressure within the engine cooling system |
| Opening Pressure | 0.5 Bar / approximately 7 PSI |
| Application | Engine Cooling System |
| Product Category | Engine / Cooling System Component |
| Machine Type | JCB Construction Machinery / Backhoe Loader |
| Compatible Models | Selected JCB 2CX, 3CX, 4CX and other applicable models |
| Brand | Gravitaz |
| Supplier | Gravitaz Earthmovers Corporation |
| Website | www.jcbparts.in |
| Compatibility | Verify model, specification and serial number before ordering |
The Expansion Tank Cap – 123/06578 is a pressure cap used in the engine cooling system of selected JCB construction machinery. The part is also listed as a Pressure Cap and is identified by JCB part number 123/06578, with alternative number formats 123/06578 and 12306578.
The cap helps maintain the required pressure within the cooling system and supports proper coolant-system operation. Available technical references identify a 0.5 Bar (approximately 7 PSI) opening pressure for this part specification.
The 123/06578 Expansion Tank Cap is referenced for various JCB machines, including selected JCB 2CX, 3CX and 4CX models. Because fitment can vary by machine configuration and serial number, compatibility should be checked before ordering.
For dependable JCB Spare Parts, Gravitaz Earthmovers Corporation provides replacement components for construction equipment. Visit www.jcbparts.in to explore JCB parts and related engine and cooling-system components.
