Motortcraft Replacement Overflow Radiator Cap Mustang 96-13

Keep your Mustang’s cooling system operating as intended. This Motorcraft replacement overflow cap is a direct-fit replacement for 1996-2013 Mustangs (RS527). It helps maintain proper cooling system pressure. This supports consistent engine temperatures and coolant control.

This overflow cap is engineered to hold approximately 16 psi of pressure. This raises the coolant’s boiling point to reduce the risk of overheating during normal driving conditions. A secure seal at the radiator filler neck or degas bottle prevents coolant loss. This ensures the system remains properly filled.

The cap’s internal two-way pressure valve releases excess pressure if the system pressure rises beyond the specified limit. This helps protect cooling system components, including hoses, the radiator, and the water pump.

Features and Benefits:
- Direct-fit replacement for factory applications
- Maintains proper cooling system pressure
- Helps raise coolant boiling point
- Reduces coolant loss from evaporation
- Two-way pressure relief valve design
- Factory-style construction and fit

Vehicle Fitment:
- 1996-2004 Mustang SN95
- 2005-2013 Mustang S197