Rectifier for Maruti Suzuki Swift — Price, Symptoms & Replacement Guide
Category: Electrical | Failure Severity: High | Replacement Cost in India: ₹1,500–₹4,000
What is the Rectifier?
Converts AC generated by the alternator into DC for battery charging.
How the Rectifier Works
Uses diodes to convert alternating current into direct current suitable for vehicle systems.
Why the Rectifier is Important
Without it, the battery cannot be charged properly.
Common Problems with the Rectifier
- Diode failure
- Overheating
Warning Symptoms of a Failing Rectifier
- Battery not charging
- Electrical fluctuations
Common Causes of Rectifier Failure
- Heat damage
- Wear over time
Impact on Car Performance
Leads to battery drain and electrical instability.
DIY Fix Guide — Step by Step
- Test alternator output
- Replace if faulty
Maintenance Tips
- Check alternator health regularly
Rectifier Replacement Cost in India
Expect to pay between ₹1,500 and ₹4,000 for genuine parts plus labour at an authorised Maruti Suzuki workshop. Local garages and aftermarket parts can be 20–40% cheaper but may compromise warranty.
Where to Buy Rectifier Online
Search trusted Indian car-parts retailers like Boodmo, Amazon India and Flipkart for genuine and OEM-grade Rectifier listings.
When to Replace the Rectifier
When battery fails to charge despite working alternator.