Radiator Cap for Nissan Gravite — Price, Symptoms & Replacement Guide
Category: Cooling | Failure Severity: Medium | Replacement Cost in India: ₹300–₹1,200
What is the Radiator Cap?
Radiator cap maintains system pressure and prevents coolant loss.
How the Radiator Cap Works
It seals the radiator and releases excess pressure through a spring-loaded valve.
Why the Radiator Cap is Important
Maintains boiling point of coolant and system efficiency.
Common Problems with the Radiator Cap
- Pressure leak
- Seal wear
- Valve failure
Warning Symptoms of a Failing Radiator Cap
- Coolant overflow
- Overheating
- Low coolant level
Common Causes of Radiator Cap Failure
- Aging seal
- High pressure cycles
- Cheap replacement
Impact on Car Performance
Improper pressure reduces cooling efficiency by up to 15%.
DIY Fix Guide — Step by Step
- Inspect rubber seal
- Check for cracks
- Replace if loose or worn
Maintenance Tips
- Check during service
- Replace every 40,000 km
Radiator Cap Replacement Cost in India
Expect to pay between ₹300 and ₹1,200 for genuine parts plus labour at an authorised Nissan workshop. Local garages and aftermarket parts can be 20–40% cheaper but may compromise warranty.
Where to Buy Radiator Cap Online
Search trusted Indian car-parts retailers like Boodmo, Amazon India and Flipkart for genuine and OEM-grade Radiator Cap listings.
When to Replace the Radiator Cap
Replace if pressure holding capacity fails or seal is damaged.