Coolant Expansion Tank Cap Radiator Reservoir Pressure Cap for SHACMAN F3000 X3000

The Cap That Keeps the Reservoir Sealed

Coolant expands when hot and contracts when cold. If the cap cannot hold the set pressure, the system draws air and the reservoir level drifts. This cap seats evenly on the tank neck and opens at the designed relief point, so the circuit stays closed through every heat cycle.

Design points

• Relief pressure set at the factory to keep the circuit stable.
• Sealing ring that seats flat on the standard tank neck.
• Compact body, quick to fit during cooling service.
• Direct OE replacement, no adaptor or modification.

Where it is used

SHACMAN F3000 and X3000 trucks, kept in workshop stock alongside filters and belts. A cap is cheap; the overheat it prevents is not.

Packing and enquiry

Each cap is bagged and shipped in export cartons suited to mixed spare parts orders. Send the truck model and quantity, and we confirm fitment and stock before dispatch.