Radiator Caps

Radiator Caps – Pressure Control & Coolant System Safety

The radiator cap is a small but vital component that maintains correct pressure within your vehicle’s cooling system. It prevents coolant from boiling over, ensures efficient heat transfer, and allows coolant expansion into the overflow tank. A weak or leaking cap can cause overheating, coolant loss, or even head gasket failure.

Our radiator caps are precision-engineered to OEM pressure ratings and designed to seal perfectly under high temperature and vibration. Whether you’re replacing a worn cap or servicing your cooling system, choosing the right pressure cap restores performance and reliability under South African heat and load conditions.

Why Choose Our Radiator Caps

• OEM Pressure Ratings – Maintains correct system pressure and boiling point
• Prevents Coolant Loss – Seals tightly to stop leaks and evaporation
• Protects Engine Components – Prevents overheating and pressure imbalance
• Durable Construction – Heat and corrosion resistant for long life
• Trusted Nationwide Since 2011 – Workshop-approved quality and fast delivery

Don’t overlook this critical component — replace a weak radiator cap before it causes overheating or coolant loss.

For expert insight into how radiator caps, thermostats and water pumps work together to protect your cooling system, read our detailed article: Why Cars Overheat in South Africa – Cooling System Failures, Head Gasket Damage & How to Prevent It .