INA FT40257 Accessory Drive Belt Tensioner

Reliable Accessory Drive Belt Tensioner for Dodge, Jeep, and Mercedes-Benz

The INA FT40257 accessory drive belt tensioner is engineered to maintain optimal belt tension in various vehicle models, including Dodge Grand Cherokee, Jeep Grand Cherokee, and Mercedes-Benz E320 and ML350. Designed for durability and precise fitment, this tensioner supports smooth engine operation and accessory performance.

• Compatible with Dodge Grand Cherokee and Jeep Grand Cherokee models
• Fits Mercedes-Benz E320, E350, GL320, GL350, ML320, ML350, R320, R350, S350, Sprinter 2500, and Sprinter 3500
• Part number FT40257 ensures exact replacement fit
• Maintains proper tension on accessory drive belts for consistent performance
• Manufactured by INA, a trusted brand in automotive belt system components

Product Details and Compatibility

The INA FT40257 accessory drive belt tensioner is designed to replace worn or faulty tensioners in select Dodge, Jeep, and Mercedes-Benz vehicles. This component is critical for maintaining the correct tension on the accessory drive belt, which powers essential engine accessories such as the alternator, power steering pump, and air conditioning compressor. Proper tension prevents belt slippage and premature wear, contributing to overall engine reliability. The tensioner is compatible with a range of Mercedes-Benz models including E320, E350, GL320, GL350, ML320, ML350, R320, R350, S350, and Sprinter 2500/3500, as well as Dodge and Jeep Grand Cherokee vehicles.

Common Applications and Problem Resolution

• Eliminates belt squealing caused by improper tension
• Prevents premature belt wear and damage
• Reduces risk of accessory drive belt failure
• Improves engine accessory performance and reliability
• Addresses tensioner pulley noise and vibration issues

Installation Notes and Tips

Installation of the INA FT40257 tensioner requires basic mechanical skills and appropriate tools. It is recommended to inspect the accessory drive belt for wear and replace it if necessary during installation. Ensure the tensioner is properly aligned and torqued to manufacturer specifications to avoid belt misalignment or tension issues. Refer to the vehicle’s service manual for detailed installation procedures specific to each make and model.

Quality Assurance and Warranty

INA manufactures the FT40257 accessory drive belt tensioner to meet or exceed OEM standards for fit, form, and function. This part undergoes rigorous quality control to ensure durability and reliable performance. While specific warranty details may vary, INA typically offers a limited warranty covering defects in materials and workmanship. Consult the product documentation or supplier for exact warranty terms.