OEM (Original Equipment Manufacturer) fan belt:
- Genuine Mazda: Expect to pay around $20 to $40.
Aftermarket fan belt:
- Budget-friendly options: From around $10 to $20.
- Mid-range quality: Around $20 to $30.
- Premium or high-quality brands: Can range from $30 to $50 or more.
Keep in mind that these are approximate figures and the actual cost may vary based on your specific circumstances. It's recommended to consult with a trusted mechanic or auto parts store to obtain the most accurate and up-to-date pricing for your particular Mazda 121 model.