Coolant expansion tank designed for JCB machines equipped with JCB DieselMax engines (post-2005). The tank compensates for thermal expansion of the coolant and enables effective air bleeding of the cooling system. Damage or leakage may lead to overheating and loss of system pressure.
Alternative / Related Part Numbers:
128/15480 (version without sensor)
Type:
Coolant expansion tank (header / expansion tank) with integrated hose connections
Applications:
Functions & Benefits
Failure Diagnosis
⚠️ Safety Warning
Do not remove the cap when the engine is hot — risk of burns from pressurized coolant. Always use coolant that meets JCB-recommended specifications.
Machine Applications
|
Brand (Machine type)
|
Model
|
|
JCB (Backhoe loaders) |
3CX, 4CX — approx. from serial no. 967724 (DieselMax 2005→) |
|
JCB (Rollers) |
Vibromax VM115, VM132, VM146, VM166, VM200 — selected serial ranges |
Indicative list — confirm 128/15479 and the sensor/no-sensor variant against your machine.
Data sheet
Specific References
Manufacturer
Responsible person






Coolant expansion tank designed for JCB machines equipped with JCB DieselMax engines (post-2005). The tank compensates for thermal expansion of the coolant and enables effective air bleeding of the cooling system. Damage or leakage may lead to overheating and loss of system pressure.

















