Fifteen Truck drivers will blockade a Mack Trucks site this morning in protest of what they say is neglect from the manufacturer in maintaining their trucks.

The drivers from concrete company Rinker will block the road and entrance to Mack Trucks at Chipping Norton in south-west Sydney from 10am.

The Transport Workers Union (TWU) says Mack has refused to continue repairing their vehicles after the warranties expired.

“Drivers have had to contend with serious mechanical issues, rendering their Trucks unsafe and not roadworthy unless fixed,” the union says.

Drivers say they will block access to the Mack facility until management agrees to negotiate.