OE Quality
60-Day Returns

INA FT10721 Accessory Drive Belt Tensioner
Reliable Accessory Drive Belt Tensioner for Mercedes-Benz
The INA FT10721 accessory drive belt tensioner is designed to maintain optimal tension in the belt system of select Mercedes-Benz models. Engineered for durability and precise fitment, this tensioner supports smooth operation of your vehicle's accessory drive components.
- Compatible with Mercedes-Benz 600SEC, 600SEL, 600SL, CL600, S600, and SL600 models
- Part number FT10721 ensures exact replacement fit
- Constructed to maintain proper belt tension and reduce wear
- Designed for accessory drive belt system components
- Manufactured by INA, a trusted name in automotive belt system parts
Product Details and Functionality
The INA FT10721 accessory drive belt tensioner is a critical component in the accessory drive belt system of Mercedes-Benz vehicles such as the 600SEC, 600SEL, 600SL, CL600, S600, and SL600. This tensioner maintains the correct tension on the accessory drive belt, which powers essential components like the alternator, power steering pump, and air conditioning compressor. Proper tension prevents belt slippage and premature wear, contributing to the overall reliability of the engine's accessory systems.
Common Applications and Problem Resolution
- Prevents belt slippage and squealing noises
- Reduces premature belt wear and potential failure
- Maintains consistent accessory drive performance
- Addresses issues related to belt misalignment or tension loss
- Helps avoid accessory component damage due to improper belt tension
Installation Notes and Tips
When installing the INA FT10721 tensioner, ensure the belt routing matches the vehicle manufacturer’s specifications. Use appropriate tools to relieve tension safely and avoid damage to the tensioner or belt. Verify belt alignment and tension after installation to ensure proper operation. This part is designed for direct replacement on compatible Mercedes-Benz models, so no modifications should be necessary.
Quality Assurance and Warranty
INA manufactures the FT10721 tensioner to meet strict quality standards for durability and performance. While specific warranty details may vary, INA products typically come with a limited warranty against defects in materials and workmanship. Using this OEM-quality tensioner helps maintain the integrity of your Mercedes-Benz accessory drive system.
This part fits 17 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1999 | Mercedes-Benz | CL600 | 6.0L | V12 | N/A | INA Global Number 531 0721 100 |
| 1999 | Mercedes-Benz | S600 | 6.0L | V12 | N/A | INA Global Number 531 0721 100 |
| 1999 | Mercedes-Benz | SL600 | 6.0L | V12 | N/A | INA Global Number 531 0721 100 |
| 1998 | Mercedes-Benz | CL600 | 6.0L | V12 | N/A | INA Global Number 531 0721 100 |
| 1998 | Mercedes-Benz | S600 | 6.0L | V12 | N/A | INA Global Number 531 0721 100 |
| 1998 | Mercedes-Benz | SL600 | 6.0L | V12 | N/A | INA Global Number 531 0721 100 |
| 1997 | Mercedes-Benz | S600 | 6.0L | V12 | N/A | INA Global Number 531 0721 100 |
| 1997 | Mercedes-Benz | SL600 | 6.0L | V12 | N/A | INA Global Number 531 0721 100 |
| 1996 | Mercedes-Benz | S600 | 6.0L | V12 | N/A | INA Global Number 531 0721 100 |
| 1996 | Mercedes-Benz | SL600 | 6.0L | V12 | N/A | INA Global Number 531 0721 100 |
| 1995 | Mercedes-Benz | S600 | 6.0L | V12 | N/A | INA Global Number 531 0721 100 |
| 1995 | Mercedes-Benz | SL600 | 6.0L | V12 | N/A | INA Global Number 531 0721 100 |
| 1994 | Mercedes-Benz | S600 | 6.0L | V12 | N/A | INA Global Number 531 0721 100 |
| 1993 | Mercedes-Benz | 600SEC | 6.0L | V12 | N/A | INA Global Number 531 0721 100 |
| 1993 | Mercedes-Benz | 600SEL | 6.0L | V12 | N/A | INA Global Number 531 0721 100 |
| 1993 | Mercedes-Benz | 600SL | 6.0L | V12 | N/A | INA Global Number 531 0721 100 |
| 1992 | Mercedes-Benz | 600SEL | 6.0L | V12 | N/A | INA Global Number 531 0721 100 |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.